Amir R. Nejad
About
Projects, Job Vacancy, News & Events
Please see Marine System Dynamics and Vibration Lab (MD Lab) for latest projects, job vacancies, news and events.
Background
Dr. Nejad is the current research group leader of "Marine Energy Systems and Autonomics (MESA)" at Marine Technology Department, NTNU, and the chair of EAWE WindEurope Scientific Track Committee as well as co-founder and co-chair of Drivetrain Technical Committee at European Academy of Wind Energy (EAWE). He is also a member of ISO committee on wind turbine drivetrain health monitoring, Shock and Vibration committee at Standard Norge, and Editorial Board member of "Ocean Engineering", "Wind Energy" and "Digital Twin" journals, also Associate Editor of "Wind Energy Science" journal.
His current research interests include: Stochastic and Reliability-based Design and Operation, Dynamic Modelling, Analysis, Fault Detection and Condition Monitoring of Electro-Mechanical Systems in Marine and Offshore Renewable Applications.
Teaching
- MR8402: Reliability-based design and operation of marine machinery (PhD level course)
- TMR4330: Marine machinery design and condition monitoring (autumn semesters)
- TMR4505: Wind turbine drivetrains (part of Wind Turbine specialization course autumn semesters)
- TMR4535: Marine Mechatronics, specialization course (autumn semesters)
Awards and Honors
- Best Lecturer of the Year, 2019-2020, Dept. of Marine Technology, NTNU
- Best Lecturer of the Year, 2015-2016, Dept. of Marine Technology, NTNU
- Best Poster Award, 2016 (for the article by Ghane M., Nejad A.R., et. al), Torque Conference, Munich, Germany
- Best Scientific Content Award, 2014 (for article by Nejad A.R. et. al), EERA DeepWind Conference, Trondheim, Norway
- Nowitech Full Ph.D. Fellowship Award, 2012-2015
- Det Norske Veritas (DNV) Education Fund Award, 2009-2012
- Best Scientific Content Award, Prof. Jahanshahi Conf., Tehran University, 1997
Education
- Postdoctoral Associate, Center for Ships and Ocean Structures (CeSOS), & Center for Autonomous Marine Operations and Systems (AMOS), Dept. of Marine Technology, NTNU
- Ph.D. Marine Technology, Norwegian University of Science & Technology (PhD thesis was assessed by the committee as being within the top 10% international quality level)
- M.Sc. Subsea Engineering, Aberdeen University (with distinction)
- B.Sc. Mechanical Engineering, Tehran University (with honors)
Current Projects & Students
Please see Marine System Dynamics and Vibration Lab (MD Lab).
Misc.
Dr. Nejad's Erdös number is 4. (Amir R. Nejad-->Peter Fogh Odgaard-->Tariq Samad-->Douglas B. West-->Paul Erdös)
Publications
2025
-
Nejad, Amir R.;
Ibrion, Mihaela;
Ebrahimi, Amir;
Kodalle, Fabian;
Kloepzig, Markus;
Schleicher, Klaus.
(2025)
On rare earth materials utilization in offshore wind turbine and green hydrogen.
WESC2025
Abstract
-
Ibrion, Mihaela;
Nejad, Amir R..
(2025)
Rare earth metals and offshore wind: on permanent magnets, policies and energy security.
WESC2025
Abstract
-
Ibrion, Mihaela;
Nejad, Amir R..
(2025)
Rare Earth Elements: Trade-Off for Environment, Energy Security and Policies.
2025IEEE2025 21st International Conference on the European Energy Market (EEM)
Academic article
-
Nejad, Amir R.;
Ibrion, Mihaela.
(2025)
Permanent Magnets in Offshore Wind: State of the Art, Future Trends and Risk.
International Conference on the European Energy Market
Academic article
-
Tartt, Kelly Jane;
Kazemi-Amiri, Abbas Mehrad;
Nejad, Amir R.;
Carroll, James.
(2025)
On confidence interval-based anomaly detection approach for temperature predictions of wind turbine drivetrains to assist in lifetime extension assessment.
Forschung im Ingenieurwesen
Academic article
-
Mehlan, Felix Christian;
Nejad, Amir R..
(2025)
On the modeling errors of digital twins for load monitoring and fatigue assessment in wind turbine drivetrains.
Wind Energy Science
Academic article
-
Purcell, Etienne;
Nejad, Amir R.;
Bekker, Anriëtte.
(2025)
Methodology for Real-Time Torque Estimation in a Ship Propulsion Digital Twin.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Wenske, Jan.
(2025)
Establishing the Partial Load Limits for Main Shaft Response Prediction in Wind Turbine Hybrid Nacelle Testing.
Wind Energy
Academic article
-
Krathe, Veronica Liverud;
Thedin, Regis;
Jonkman, Jason M.;
Nejad, Amir Rasekhi;
Bachynski-Polic, Erin Elizabeth.
(2025)
Main bearing response in a waked 15-MW floating wind turbine in below-rated conditions.
Forschung im Ingenieurwesen
Academic article
-
Gebel, Jakob Vincent;
Rezaei, Ashkan;
Daems, Pieter-Jan;
Marini, Rebeca;
Matthys, Jens-Jo;
Nejad, Amir R..
(2025)
Wind turbine blade root and blade bearing fatigue damage estimation based on field data.
Forschung im Ingenieurwesen
Academic article
-
Siddiqui, Muhammad Omer;
Guo, Yi;
Nejad, Amir R.;
Wenske, Jan.
(2025)
Characterizing wind turbine drivetrain nonlinearities for hybrid nacelle tests.
Forschung im Ingenieurwesen
Academic article
-
Krathe, Veronica Liverud;
Jonkman, Jason M.;
Gebel, Jakob Vincent;
Arreba, Irene Rivera;
Nejad, Amir Rasekhi;
Bachynski-Polic, Erin Elizabeth.
(2025)
Investigation of Main Bearing Fatigue Estimate Sensitivity to Synthetic Turbulence Models Using a Novel Drivetrain Model Implemented in OpenFAST.
Wind Energy
Academic article
2024
-
Rezaei, Ashkan;
Schleich, Florian;
Menck, Oliver;
Grassmann, Matthis;
Bartschat, Arne;
Nejad, Amir R..
(2024)
Comparative analysis of rolling contact fatigue life in
a wind turbine pitch bearing with different modeling
approaches.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Pedersen, Eilif.
(2024)
Virtual Model Development of the Load Application System of a Wind Turbine Nacelle Test Bench for Hybrid Test Applications.
Journal of Dynamic Systems Measurement, and Control
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Scalable SCADA-Based Calibration for Analytical Wake Models Across an Offshore Cluster.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Tartt, Kelly Jane;
Kazemi-Amiri, Abbas Mehrad;
Nejad, Amir R.;
Carroll, James;
McDonald, Alasdair.
(2024)
Life extension of wind turbine drivetrains by means of SCADA data: Case study of generator bearings in an onshore wind farm.
Results in Engineering (RINENG)
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Performance comparison of analytical wake models calibrated on a large offshore wind cluster.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Hyperparameter tuning framework for calibrating analytical wake models using SCADA data of an offshore wind farm.
Wind Energy Science
Academic article
-
Alkarem, Yuksel;
Huguenard, Kimberly;
Verma, Amrit Shankar;
Binsbergen, Diederik van;
Bachynski-Polic, Erin Elizabeth;
Nejad, Amir R..
(2024)
Passive Mooring-based Turbine Repositioning Technique for Wake Steering in Floating Offshore Wind Farms.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dibaj, Ali;
Valavi, Mostafa;
Nejad, Amir R..
(2024)
Unsupervised anomaly detection of permanent-magnet offshore wind generators through electrical and electromagnetic measurements.
Wind Energy Science
Academic article
-
Lu, Biliang;
Dibaj, Ali;
Gao, Zhen;
Nejad, Amir Rasekhi;
Zhang, Yingjie.
(2024)
A class-imbalance-aware domain adaptation framework for fault diagnosis of wind turbine drivetrains under different environmental conditions.
Ocean Engineering
Academic article
2023
-
Nejad, Amir R..
(2023)
PREFACE.
Journal of Physics: Conference Series (JPCS)
Editorial
-
Mehlan, Felix Christian;
Nejad, Amir R..
(2023)
Rotor imbalance detection and diagnosis in floating wind turbines by means of drivetrain condition monitoring.
Renewable Energy
Academic article
-
Purcell, Etienne;
Nejad, Amir R.;
Bekker, Anriëtte.
(2023)
Detection of ice using ship propulsion and navigation measurements.
Ocean Engineering
Academic article
-
Ibrion, Mihaela;
Nejad, Amir R..
(2023)
On a road map for technology qualification, innovation and cost reduction in floating offshore wind: learning from Hywind and Norwegian approach.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Wenske, Jan.
(2023)
On a new methodology for testing full load responses of wind turbine drivetrains on a test bench.
Forschung im Ingenieurwesen
Academic article
-
Binsbergen, Diederik van;
Valavi, Mostafa;
Nejad, Amir R.;
Helsen, Jan.
(2023)
Effect of generator torque ripple optimization on a geared wind turbine drivetrain.
Forschung im Ingenieurwesen
Academic article
-
Bhaskaran, Saravanan;
Verma, Amrit Shankar;
Goupee, Andrew J.;
Bhattacharya, Subhamoy;
Nejad, Amir R.;
Shi, Wei.
(2023)
Comparison of Extreme Wind and Waves Using Different Statistical Methods in 40 Offshore Wind Energy Lease Areas Worldwide.
Energies
Academic article
-
Rezaei, Ashkan;
Nejad, Amir R..
(2023)
Effect of wind speed distribution and site assessment
on pitch bearing loads and life.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Feja, Paul Robert;
Borowski, Philipp;
Kyling, Hans;
Nejad, Amir R.;
Wenske, Jan.
(2023)
Wind turbine nacelle testing: State-of-the-art and development trends.
Renewable and Sustainable Energy Reviews
Academic literature review
-
Mehlan, Felix Christian;
Keller, Jonathan;
Nejad, Amir R..
(2023)
Virtual sensing of wind turbine hub loads and drivetrain fatigue damage.
Forschung im Ingenieurwesen
Academic article
-
Rezaei, Ashkan;
Guo, Yi;
Keller, Jonathan;
Nejad, Amir R..
(2023)
Effects of wind field characteristics on pitch bearing reliability: a case study of 5 MW reference wind turbine at onshore and offshore sites.
Forschung im Ingenieurwesen
Academic article
2022
-
Nejad, Amir R.;
Keller, Jonathan;
Guo, Yi;
Sheng, Shawn;
Polinder, Henk;
Watson, Simon.
(2022)
Wind turbine drivetrains: state-of-the-art technologies
and future development trends.
Wind Energy Science
Academic article
-
Dibaj, Ali;
Gao, Zhen;
Nejad, Amir R..
(2022)
Fault detection of offshore wind turbine drivetrains in different environmental conditions through optimal selection of vibration measurements.
Renewable Energy
Academic article
-
Mehlan, Felix Christian;
Pedersen, Eilif;
Nejad, Amir R..
(2022)
Modelling of wind turbine gear stages for Digital Twin and real-time virtual sensing using bond graphs.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Binsbergen, Diederik van;
soares, marcelo nesci;
Pedersen, Eilif;
Nejad, Amir R..
(2022)
A physics-, SCADA-based remaining useful life calculation approach for wind turbine drivetrains.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dibaj, Ali;
Nejad, Amir R.;
Gao, Zhen.
(2022)
A data-driven approach for fault diagnosis of drivetrain system in a spar-type floating wind turbine based on the multi-point acceleration measurements.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Mehlan, Felix Christian;
Nejad, Amir R.;
Gao, Zhen.
(2022)
Digital twin based virtual sensor for online fatigue damage monitoring in offshore wind turbine drivetrains.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Tartt, Kelly Jane;
Amiri, Abbas K.;
Nejad, Amir R.;
McDonald, A.;
Carroll, J..
(2022)
Development of a Vulnerability Map of Wind Turbine Power Converters.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir R..
(2022)
Preface.
Journal of Physics: Conference Series (JPCS)
Editorial
2021
-
Berge, Vegard;
Helgesen, Christoffer Rene;
Ivanov, Dimitar Zdravkov;
Jahren, Marianne Helno;
Opstad, Pauline Sundvor;
Sletten, Petter Solem.
(2021)
On State-of-the-Art and Alternative Energy-Efficient Lifting Technologies for Deep Sea Mining.
Academic chapter/article/Conference paper
-
Mehlan, Felix Christian;
Nejad, Amir R.;
Gao, Zhen.
(2021)
Estimation of Wind Turbine Gearbox Loads for Online Fatigue Monitoring Using Inverse Methods.
Academic chapter/article/Conference paper
-
Binsbergen, Diederik van;
Nejad, Amir R.;
Helsen, Jan.
(2021)
Dynamic Model Development of Wind Turbine Drivetrains by Using Sensor Measurements.
Academic chapter/article/Conference paper
-
Wang, Shuaishuai;
Nejad, Amir R.;
Moan, Torgeir.
(2021)
Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Wang, Shuaishuai;
Moan, Torgeir;
Nejad, Amir R..
(2021)
A comparative study of fully coupled and de-coupled methods on dynamic behaviour of floating wind turbine drivetrains.
Renewable Energy
Academic article
-
Ibrion, Mihaela;
Nejad, Amir R..
(2021)
On Building a Safe Ocean, The oceanscape and the necessity for developing an Ocean Culture.
Popular scientific chapter/article
-
Nejad, Amir R.;
Breivik, Andreas;
Valavi, Mostafa.
(2021)
Fault Detection and Diagnosis of Induction Motor for Ship Propulsion by utilizing Electrical Signature and Finite Element Method.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Torsvik, Jone;
Nejad, Amir R.;
Pedersen, Eilif.
(2021)
Experimental field study of floater motion effects on a main bearing in a full-scale spar floating wind turbine.
Marine Structures
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Theoretical and experimental study of wind turbine drivetrain fault diagnosis by using torsional vibrations and modal estimation.
Journal of Sound and Vibration
Academic article
-
Moghadam, Farid Khazaeli;
Rebouças, G. F. S.;
Nejad, Amir R..
(2021)
Digital twin modeling for predictive maintenance of gearboxes in floating offshore wind turbine drivetrains.
Forschung im Ingenieurwesen
Academic article
-
Nejad, Amir R.;
Purcell, Etienne;
Mostafa, Valavi;
Roman, Hudak;
Benjamin, Lehmann;
Gutiérrez, Guzmán Francisco.
(2021)
Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin.
Academic chapter/article/Conference paper
-
Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Vibration-Based Condition Monitoring of Drivetrains in Large Offshore Wind Turbines in a Digital Twin Perspective.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir R..
(2021)
Learning from failures in cruise ship industry: The blackout of Viking Sky in Hustadvika, Norway.
Engineering Failure Analysis
Academic article
-
Nejad, Amir R.;
Torsvik, Jone.
(2021)
Drivetrains on floating offshore wind turbines: lessons learned over the last 10 years.
Forschung im Ingenieurwesen
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Online condition monitoring of floating wind turbines drivetrain by means of digital twin.
Mechanical systems and signal processing
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2021)
A comparative study on the dynamic behaviour of 10 MW conventional and compact gearboxes for offshore wind turbines.
Wind Energy
Academic article
-
Tartt, Kelly Jane;
Nejad, Amir R.;
Amiri, Abbas K.;
McDonald, A..
(2021)
On Lifetime Extension of Wind Turbine Drivetrains.
Academic chapter/article/Conference paper
-
Purcell, Etienne;
Nejad, Amir R.;
Valavi, Mostafa;
Bekker, Anriëtte.
(2021)
On Uncertainty Assessment of Fatigue Damage of Propulsion Shaft Under Ice Impact.
Academic chapter/article/Conference paper
2020
-
Cho, Seongpil;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2020)
Numerical modeling of the hydraulic blade pitch actuator in a spar‐type floating wind turbine considering fault conditions and their effects on global dynamic responses.
Wind Energy
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2020)
Dynamic Behaviour Comparison of a 10-MW Drivetrain in a Bottom-Fixed Monopile and a Spar Floating Wind Turbines.
Academic chapter/article/Conference paper
-
Lee, Chern Fong;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi.
(2020)
Consequences of load mitigation control strategies for a floating wind turbine.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2020)
Effects of bedplate flexibility on drivetrain dynamics: Case study of a 10 MW spar type floating wind turbine.
Renewable Energy
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2020)
On design, modelling, and analysis of a 10‐MW medium‐speed drivetrain for offshore wind turbines.
Wind Energy
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2020)
Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period.
Engineering Failure Analysis
Academic article
-
Rebouças, G. F. S.;
Nejad, Amir Rasekhi.
(2020)
On Down-Scaled Modelling of Wind Turbine Drivetrains.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Moan, Torgeir;
Gao, Zhen;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi.
(2020)
Recent Advances in Integrated Response Analsysis of Floating Wind Turbines in a Reliability Perspective.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2020)
Evaluation of PMSG-based drivetrain technologies for 10 MW floating offshore wind turbines: pros and cons in a life-cycle perspective.
Wind Energy
Academic article
-
Binsbergen, Dirk Willem van;
Wang, Shuaishuai;
Nejad, Amir Rasekhi.
(2020)
Effects of induction and wake steering control on power and drivetrain responses for 10 MW floating wind turbines in a wind farm.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2020)
Learning from non-failure of Onagawa nuclear power station: an accident investigation over its life cycle.
Results in Engineering (RINENG)
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2020)
Natural frequency estimation by using torsional response, and applications for wind turbine drivetrain fault diagnosis.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dong, Wenbin;
Nejad, Amir Rasekhi;
Moan, Torgeir;
Gao, Zhen.
(2020)
Structural reliability analysis of contact fatigue design of gears in wind turbine drivetrains.
Journal of Loss Prevention in the Process Industries
Academic article
2019
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2019)
Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines.
Academic chapter/article/Conference paper
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2019)
On Disaster Risk Reduction in Norwegian Oil and Gas Industry Through Life-Cycle Perspective.
Academic chapter/article/Conference paper
-
Balestra, Lorenzo;
Nejad, Amir Rasekhi;
Naldi, Giovanni.
(2019)
On Design and Analysis of a Drivetrain Test Rig for Wind Turbine Health Monitoring.
Academic chapter/article/Conference paper
-
Tian, Yuan;
Nejad, Amir R.;
Zadeh, Mehdi.
(2019)
Development and Application of Digital Twin in Marine Propulsion System.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Johansen, Sigrid S.;
Nejad, Amir Rasekhi.
(2019)
On Digital Twin Condition Monitoring Approach for Drivetrains in Marine Applications.
Academic chapter/article/Conference paper
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2019)
Effect of axial acceleration on drivetrain responses in a spar-type floating wind turbine.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2019)
Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring.
Academic chapter/article/Conference paper
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2019)
On risk of digital twin implementation in marine industry: Learning from aviation industry.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Aoyanagi, Yuriko;
Ibrion, Mihaela.
(2019)
Team and Research Based Learning Methods Applied in Multidisciplinary Marine Engineering Education.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2019)
On initial design and modelling of a 10 MW medium speed drivetrain for offshore wind turbines.
Journal of Physics: Conference Series (JPCS)
Academic article
2018
-
Moan, Torgeir;
Nejad, Amir Rasekhi.
(2018)
Proceedings of the 3rd Offshore Structural Reliability Conference (OSRC2016).
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Academic anthology/Conference proceedings
-
Nejad, Amir Rasekhi;
Odgaard, Peter Fogh;
Moan, Torgeir.
(2018)
Conceptual study of a gearbox fault detection method applied on a 5‐MW spar‐type floating wind turbine.
Wind Energy
Academic article
-
Nejad, Amir Rasekhi.
(2018)
Modelling and Analysis of Drivetrains in Offshore Wind Turbines.
Academic chapter/article/Conference paper
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2018)
Condition monitoring of spar‐type floating wind turbine drivetrain using statistical fault diagnosis.
Wind Energy
Academic article
-
Nejad, Amir Rasekhi;
Li, Lin;
Acero, Wilson Ivan Guachamin;
Moan, Torgeir.
(2018)
A Systematic Design Approach of Gripper’s Hydraulic System Utilized in Offshore Wind Turbine Monopile Installation.
Academic chapter/article/Conference paper
-
Torsvik, Jone;
Nejad, Amir Rasekhi;
Pedersen, Eilif.
(2018)
Main bearings in large offshore wind turbines: development trends, design and analysis requirements.
Journal of Physics: Conference Series (JPCS)
Academic article
2017
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2017)
Diagnostic monitoring of drivetrain in a 5 MW spar-type floating wind turbine using Hilbert spectral analysis.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2017)
On model-based system approach for health monitoring of
drivetrains in floating wind turbines.
Procedia Engineering
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2017)
On Tower Top Axial Acceleration and Drivetrain Responses in a Spar-Type Floating Wind Turbine.
Academic chapter/article/Conference paper
2016
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2016)
Statistical fault diagnosis of wind turbine drivetrain applied to a 5MW floating wind turbine.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Guo, Yi;
Gao, Zhen;
Moan, Torgeir.
(2016)
Development of a 5 MW reference gearbox for offshore wind turbines.
Wind Energy
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Li, Lin;
Moan, Torgeir.
(2016)
Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Jiang, Zhiyu;
Gao, Zhen;
Moan, Torgeir.
(2016)
Drivetrain load effects in a 5-MW bottom-fixed wind turbine under blade-pitch fault condition and emergency shutdown.
Journal of Physics: Conference Series (JPCS)
Academic article
2015
-
Nejad, Amir Rasekhi.
(2015)
Dynamic Analysis and Design of Gearboxes in Offshore Wind Turbines in a Structural Reliability Perspective.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Gao, Zhen;
Moan, Torgeir.
(2015)
Fatigue Damage Comparison of Mechanical Components in a Land-based and a Spar Floating Wind Turbine.
Procedia Engineering
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Kvittem, Marit Irene;
Luan, Chenyu;
Gao, Zhen;
Moan, Torgeir.
(2015)
Stochastic dynamic load effect and fatigue damage analysis of drivetrains in land-based and TLP, spar and semi-submersible floating wind turbines.
Marine Structures
Academic article
-
Guo, Yi;
Keller, Jonathan;
LaCava, William;
Austin, Jason;
Nejad, Amir Rasekhi;
Halse, Chris.
(2015)
Recommendations on Model Fidelity for Wind Turbine Gearbox Simulations.
National Renewable Energy Laboratory
National Renewable Energy Laboratory
Report
-
Nejad, Amir Rasekhi;
Xing, Yihan;
Guo, Yi;
Keller, Jonathan;
Gao, Zhen;
Moan, Torgeir.
(2015)
Effects of floating sun gear in a wind turbine’s planetary gearbox with geometrical imperfections.
Wind Energy
Academic article
2014
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2014)
Fatigue Reliability-Based Inspection and Maintenance Planning of Gearbox Components in Wind Turbine Drivetrains.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2014)
On long-term fatigue damage and reliability analysis of gears under wind loads in offshore wind turbine drivetrains.
International Journal of Fatigue
Academic article
-
Nejad, Amir Rasekhi;
Odgaard, Peter Fogh;
Gao, Zhen;
Moan, Torgeir.
(2014)
A prognostic method for fault detection in wind turbine drivetrains.
Engineering Failure Analysis
Academic article
-
Odgaard, Peter Fogh;
Nejad, Amir Rasekhi.
(2014)
Frequency based Wind Turbine Gearbox Fault Detection applied to a 750 kW Wind Turbine.
Proceedings of the IEEE Conference on Control Applications
Academic article
2013
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2013)
Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings.
Energy Procedia
Academic article
2012
-
Nejad, Amir R;
Xing, Yihan;
Moan, Torgeir.
(2012)
Gear Train Internal Dynamics in Large Offshore Wind Turbines.
Academic chapter/article/Conference paper
Journal publications
-
Nejad, Amir R.;
Ibrion, Mihaela;
Ebrahimi, Amir;
Kodalle, Fabian;
Kloepzig, Markus;
Schleicher, Klaus.
(2025)
On rare earth materials utilization in offshore wind turbine and green hydrogen.
WESC2025
Abstract
-
Ibrion, Mihaela;
Nejad, Amir R..
(2025)
Rare earth metals and offshore wind: on permanent magnets, policies and energy security.
WESC2025
Abstract
-
Ibrion, Mihaela;
Nejad, Amir R..
(2025)
Rare Earth Elements: Trade-Off for Environment, Energy Security and Policies.
2025IEEE2025 21st International Conference on the European Energy Market (EEM)
Academic article
-
Nejad, Amir R.;
Ibrion, Mihaela.
(2025)
Permanent Magnets in Offshore Wind: State of the Art, Future Trends and Risk.
International Conference on the European Energy Market
Academic article
-
Tartt, Kelly Jane;
Kazemi-Amiri, Abbas Mehrad;
Nejad, Amir R.;
Carroll, James.
(2025)
On confidence interval-based anomaly detection approach for temperature predictions of wind turbine drivetrains to assist in lifetime extension assessment.
Forschung im Ingenieurwesen
Academic article
-
Mehlan, Felix Christian;
Nejad, Amir R..
(2025)
On the modeling errors of digital twins for load monitoring and fatigue assessment in wind turbine drivetrains.
Wind Energy Science
Academic article
-
Purcell, Etienne;
Nejad, Amir R.;
Bekker, Anriëtte.
(2025)
Methodology for Real-Time Torque Estimation in a Ship Propulsion Digital Twin.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Wenske, Jan.
(2025)
Establishing the Partial Load Limits for Main Shaft Response Prediction in Wind Turbine Hybrid Nacelle Testing.
Wind Energy
Academic article
-
Krathe, Veronica Liverud;
Thedin, Regis;
Jonkman, Jason M.;
Nejad, Amir Rasekhi;
Bachynski-Polic, Erin Elizabeth.
(2025)
Main bearing response in a waked 15-MW floating wind turbine in below-rated conditions.
Forschung im Ingenieurwesen
Academic article
-
Gebel, Jakob Vincent;
Rezaei, Ashkan;
Daems, Pieter-Jan;
Marini, Rebeca;
Matthys, Jens-Jo;
Nejad, Amir R..
(2025)
Wind turbine blade root and blade bearing fatigue damage estimation based on field data.
Forschung im Ingenieurwesen
Academic article
-
Siddiqui, Muhammad Omer;
Guo, Yi;
Nejad, Amir R.;
Wenske, Jan.
(2025)
Characterizing wind turbine drivetrain nonlinearities for hybrid nacelle tests.
Forschung im Ingenieurwesen
Academic article
-
Krathe, Veronica Liverud;
Jonkman, Jason M.;
Gebel, Jakob Vincent;
Arreba, Irene Rivera;
Nejad, Amir Rasekhi;
Bachynski-Polic, Erin Elizabeth.
(2025)
Investigation of Main Bearing Fatigue Estimate Sensitivity to Synthetic Turbulence Models Using a Novel Drivetrain Model Implemented in OpenFAST.
Wind Energy
Academic article
-
Rezaei, Ashkan;
Schleich, Florian;
Menck, Oliver;
Grassmann, Matthis;
Bartschat, Arne;
Nejad, Amir R..
(2024)
Comparative analysis of rolling contact fatigue life in
a wind turbine pitch bearing with different modeling
approaches.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Pedersen, Eilif.
(2024)
Virtual Model Development of the Load Application System of a Wind Turbine Nacelle Test Bench for Hybrid Test Applications.
Journal of Dynamic Systems Measurement, and Control
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Scalable SCADA-Based Calibration for Analytical Wake Models Across an Offshore Cluster.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Tartt, Kelly Jane;
Kazemi-Amiri, Abbas Mehrad;
Nejad, Amir R.;
Carroll, James;
McDonald, Alasdair.
(2024)
Life extension of wind turbine drivetrains by means of SCADA data: Case study of generator bearings in an onshore wind farm.
Results in Engineering (RINENG)
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Performance comparison of analytical wake models calibrated on a large offshore wind cluster.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Binsbergen, Diederik van;
Daems, Pieter-Jan;
Verstraeten, Timothy;
Nejad, Amir R.;
Helsen, Jan.
(2024)
Hyperparameter tuning framework for calibrating analytical wake models using SCADA data of an offshore wind farm.
Wind Energy Science
Academic article
-
Alkarem, Yuksel;
Huguenard, Kimberly;
Verma, Amrit Shankar;
Binsbergen, Diederik van;
Bachynski-Polic, Erin Elizabeth;
Nejad, Amir R..
(2024)
Passive Mooring-based Turbine Repositioning Technique for Wake Steering in Floating Offshore Wind Farms.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dibaj, Ali;
Valavi, Mostafa;
Nejad, Amir R..
(2024)
Unsupervised anomaly detection of permanent-magnet offshore wind generators through electrical and electromagnetic measurements.
Wind Energy Science
Academic article
-
Lu, Biliang;
Dibaj, Ali;
Gao, Zhen;
Nejad, Amir Rasekhi;
Zhang, Yingjie.
(2024)
A class-imbalance-aware domain adaptation framework for fault diagnosis of wind turbine drivetrains under different environmental conditions.
Ocean Engineering
Academic article
-
Nejad, Amir R..
(2023)
PREFACE.
Journal of Physics: Conference Series (JPCS)
Editorial
-
Mehlan, Felix Christian;
Nejad, Amir R..
(2023)
Rotor imbalance detection and diagnosis in floating wind turbines by means of drivetrain condition monitoring.
Renewable Energy
Academic article
-
Purcell, Etienne;
Nejad, Amir R.;
Bekker, Anriëtte.
(2023)
Detection of ice using ship propulsion and navigation measurements.
Ocean Engineering
Academic article
-
Ibrion, Mihaela;
Nejad, Amir R..
(2023)
On a road map for technology qualification, innovation and cost reduction in floating offshore wind: learning from Hywind and Norwegian approach.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Nejad, Amir R.;
Wenske, Jan.
(2023)
On a new methodology for testing full load responses of wind turbine drivetrains on a test bench.
Forschung im Ingenieurwesen
Academic article
-
Binsbergen, Diederik van;
Valavi, Mostafa;
Nejad, Amir R.;
Helsen, Jan.
(2023)
Effect of generator torque ripple optimization on a geared wind turbine drivetrain.
Forschung im Ingenieurwesen
Academic article
-
Bhaskaran, Saravanan;
Verma, Amrit Shankar;
Goupee, Andrew J.;
Bhattacharya, Subhamoy;
Nejad, Amir R.;
Shi, Wei.
(2023)
Comparison of Extreme Wind and Waves Using Different Statistical Methods in 40 Offshore Wind Energy Lease Areas Worldwide.
Energies
Academic article
-
Rezaei, Ashkan;
Nejad, Amir R..
(2023)
Effect of wind speed distribution and site assessment
on pitch bearing loads and life.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Siddiqui, Muhammad Omer;
Feja, Paul Robert;
Borowski, Philipp;
Kyling, Hans;
Nejad, Amir R.;
Wenske, Jan.
(2023)
Wind turbine nacelle testing: State-of-the-art and development trends.
Renewable and Sustainable Energy Reviews
Academic literature review
-
Mehlan, Felix Christian;
Keller, Jonathan;
Nejad, Amir R..
(2023)
Virtual sensing of wind turbine hub loads and drivetrain fatigue damage.
Forschung im Ingenieurwesen
Academic article
-
Rezaei, Ashkan;
Guo, Yi;
Keller, Jonathan;
Nejad, Amir R..
(2023)
Effects of wind field characteristics on pitch bearing reliability: a case study of 5 MW reference wind turbine at onshore and offshore sites.
Forschung im Ingenieurwesen
Academic article
-
Nejad, Amir R.;
Keller, Jonathan;
Guo, Yi;
Sheng, Shawn;
Polinder, Henk;
Watson, Simon.
(2022)
Wind turbine drivetrains: state-of-the-art technologies
and future development trends.
Wind Energy Science
Academic article
-
Dibaj, Ali;
Gao, Zhen;
Nejad, Amir R..
(2022)
Fault detection of offshore wind turbine drivetrains in different environmental conditions through optimal selection of vibration measurements.
Renewable Energy
Academic article
-
Mehlan, Felix Christian;
Pedersen, Eilif;
Nejad, Amir R..
(2022)
Modelling of wind turbine gear stages for Digital Twin and real-time virtual sensing using bond graphs.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Binsbergen, Diederik van;
soares, marcelo nesci;
Pedersen, Eilif;
Nejad, Amir R..
(2022)
A physics-, SCADA-based remaining useful life calculation approach for wind turbine drivetrains.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dibaj, Ali;
Nejad, Amir R.;
Gao, Zhen.
(2022)
A data-driven approach for fault diagnosis of drivetrain system in a spar-type floating wind turbine based on the multi-point acceleration measurements.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Mehlan, Felix Christian;
Nejad, Amir R.;
Gao, Zhen.
(2022)
Digital twin based virtual sensor for online fatigue damage monitoring in offshore wind turbine drivetrains.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Tartt, Kelly Jane;
Amiri, Abbas K.;
Nejad, Amir R.;
McDonald, A.;
Carroll, J..
(2022)
Development of a Vulnerability Map of Wind Turbine Power Converters.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir R..
(2022)
Preface.
Journal of Physics: Conference Series (JPCS)
Editorial
-
Wang, Shuaishuai;
Nejad, Amir R.;
Moan, Torgeir.
(2021)
Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Wang, Shuaishuai;
Moan, Torgeir;
Nejad, Amir R..
(2021)
A comparative study of fully coupled and de-coupled methods on dynamic behaviour of floating wind turbine drivetrains.
Renewable Energy
Academic article
-
Torsvik, Jone;
Nejad, Amir R.;
Pedersen, Eilif.
(2021)
Experimental field study of floater motion effects on a main bearing in a full-scale spar floating wind turbine.
Marine Structures
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Theoretical and experimental study of wind turbine drivetrain fault diagnosis by using torsional vibrations and modal estimation.
Journal of Sound and Vibration
Academic article
-
Moghadam, Farid Khazaeli;
Rebouças, G. F. S.;
Nejad, Amir R..
(2021)
Digital twin modeling for predictive maintenance of gearboxes in floating offshore wind turbine drivetrains.
Forschung im Ingenieurwesen
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir R..
(2021)
Learning from failures in cruise ship industry: The blackout of Viking Sky in Hustadvika, Norway.
Engineering Failure Analysis
Academic article
-
Nejad, Amir R.;
Torsvik, Jone.
(2021)
Drivetrains on floating offshore wind turbines: lessons learned over the last 10 years.
Forschung im Ingenieurwesen
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Online condition monitoring of floating wind turbines drivetrain by means of digital twin.
Mechanical systems and signal processing
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2021)
A comparative study on the dynamic behaviour of 10 MW conventional and compact gearboxes for offshore wind turbines.
Wind Energy
Academic article
-
Cho, Seongpil;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2020)
Numerical modeling of the hydraulic blade pitch actuator in a spar‐type floating wind turbine considering fault conditions and their effects on global dynamic responses.
Wind Energy
Academic article
-
Lee, Chern Fong;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi.
(2020)
Consequences of load mitigation control strategies for a floating wind turbine.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2020)
Effects of bedplate flexibility on drivetrain dynamics: Case study of a 10 MW spar type floating wind turbine.
Renewable Energy
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2020)
On design, modelling, and analysis of a 10‐MW medium‐speed drivetrain for offshore wind turbines.
Wind Energy
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2020)
Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period.
Engineering Failure Analysis
Academic article
-
Rebouças, G. F. S.;
Nejad, Amir Rasekhi.
(2020)
On Down-Scaled Modelling of Wind Turbine Drivetrains.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Moan, Torgeir;
Gao, Zhen;
Bachynski, Erin Elizabeth;
Nejad, Amir Rasekhi.
(2020)
Recent Advances in Integrated Response Analsysis of Floating Wind Turbines in a Reliability Perspective.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2020)
Evaluation of PMSG-based drivetrain technologies for 10 MW floating offshore wind turbines: pros and cons in a life-cycle perspective.
Wind Energy
Academic article
-
Binsbergen, Dirk Willem van;
Wang, Shuaishuai;
Nejad, Amir Rasekhi.
(2020)
Effects of induction and wake steering control on power and drivetrain responses for 10 MW floating wind turbines in a wind farm.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2020)
Learning from non-failure of Onagawa nuclear power station: an accident investigation over its life cycle.
Results in Engineering (RINENG)
Academic article
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2020)
Natural frequency estimation by using torsional response, and applications for wind turbine drivetrain fault diagnosis.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Dong, Wenbin;
Nejad, Amir Rasekhi;
Moan, Torgeir;
Gao, Zhen.
(2020)
Structural reliability analysis of contact fatigue design of gears in wind turbine drivetrains.
Journal of Loss Prevention in the Process Industries
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2019)
Effect of axial acceleration on drivetrain responses in a spar-type floating wind turbine.
Journal of Offshore Mechanics and Arctic Engineering
Academic article
-
Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2019)
On risk of digital twin implementation in marine industry: Learning from aviation industry.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Aoyanagi, Yuriko;
Ibrion, Mihaela.
(2019)
Team and Research Based Learning Methods Applied in Multidisciplinary Marine Engineering Education.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2019)
On initial design and modelling of a 10 MW medium speed drivetrain for offshore wind turbines.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Odgaard, Peter Fogh;
Moan, Torgeir.
(2018)
Conceptual study of a gearbox fault detection method applied on a 5‐MW spar‐type floating wind turbine.
Wind Energy
Academic article
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2018)
Condition monitoring of spar‐type floating wind turbine drivetrain using statistical fault diagnosis.
Wind Energy
Academic article
-
Torsvik, Jone;
Nejad, Amir Rasekhi;
Pedersen, Eilif.
(2018)
Main bearings in large offshore wind turbines: development trends, design and analysis requirements.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2017)
Diagnostic monitoring of drivetrain in a 5 MW spar-type floating wind turbine using Hilbert spectral analysis.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2017)
On model-based system approach for health monitoring of
drivetrains in floating wind turbines.
Procedia Engineering
Academic article
-
Ghane, Mahdi;
Nejad, Amir Rasekhi;
Blanke, Mogens;
Gao, Zhen;
Moan, Torgeir.
(2016)
Statistical fault diagnosis of wind turbine drivetrain applied to a 5MW floating wind turbine.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Guo, Yi;
Gao, Zhen;
Moan, Torgeir.
(2016)
Development of a 5 MW reference gearbox for offshore wind turbines.
Wind Energy
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Li, Lin;
Moan, Torgeir.
(2016)
Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Jiang, Zhiyu;
Gao, Zhen;
Moan, Torgeir.
(2016)
Drivetrain load effects in a 5-MW bottom-fixed wind turbine under blade-pitch fault condition and emergency shutdown.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Gao, Zhen;
Moan, Torgeir.
(2015)
Fatigue Damage Comparison of Mechanical Components in a Land-based and a Spar Floating Wind Turbine.
Procedia Engineering
Academic article
-
Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Kvittem, Marit Irene;
Luan, Chenyu;
Gao, Zhen;
Moan, Torgeir.
(2015)
Stochastic dynamic load effect and fatigue damage analysis of drivetrains in land-based and TLP, spar and semi-submersible floating wind turbines.
Marine Structures
Academic article
-
Nejad, Amir Rasekhi;
Xing, Yihan;
Guo, Yi;
Keller, Jonathan;
Gao, Zhen;
Moan, Torgeir.
(2015)
Effects of floating sun gear in a wind turbine’s planetary gearbox with geometrical imperfections.
Wind Energy
Academic article
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2014)
Fatigue Reliability-Based Inspection and Maintenance Planning of Gearbox Components in Wind Turbine Drivetrains.
Energy Procedia
Academic article
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2014)
On long-term fatigue damage and reliability analysis of gears under wind loads in offshore wind turbine drivetrains.
International Journal of Fatigue
Academic article
-
Nejad, Amir Rasekhi;
Odgaard, Peter Fogh;
Gao, Zhen;
Moan, Torgeir.
(2014)
A prognostic method for fault detection in wind turbine drivetrains.
Engineering Failure Analysis
Academic article
-
Odgaard, Peter Fogh;
Nejad, Amir Rasekhi.
(2014)
Frequency based Wind Turbine Gearbox Fault Detection applied to a 750 kW Wind Turbine.
Proceedings of the IEEE Conference on Control Applications
Academic article
-
Nejad, Amir Rasekhi;
Gao, Zhen;
Moan, Torgeir.
(2013)
Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings.
Energy Procedia
Academic article
Books
-
Moan, Torgeir;
Nejad, Amir Rasekhi.
(2018)
Proceedings of the 3rd Offshore Structural Reliability Conference (OSRC2016).
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Academic anthology/Conference proceedings
Part of book/report
-
Berge, Vegard;
Helgesen, Christoffer Rene;
Ivanov, Dimitar Zdravkov;
Jahren, Marianne Helno;
Opstad, Pauline Sundvor;
Sletten, Petter Solem.
(2021)
On State-of-the-Art and Alternative Energy-Efficient Lifting Technologies for Deep Sea Mining.
Academic chapter/article/Conference paper
-
Mehlan, Felix Christian;
Nejad, Amir R.;
Gao, Zhen.
(2021)
Estimation of Wind Turbine Gearbox Loads for Online Fatigue Monitoring Using Inverse Methods.
Academic chapter/article/Conference paper
-
Binsbergen, Diederik van;
Nejad, Amir R.;
Helsen, Jan.
(2021)
Dynamic Model Development of Wind Turbine Drivetrains by Using Sensor Measurements.
Academic chapter/article/Conference paper
-
Ibrion, Mihaela;
Nejad, Amir R..
(2021)
On Building a Safe Ocean, The oceanscape and the necessity for developing an Ocean Culture.
Popular scientific chapter/article
-
Nejad, Amir R.;
Purcell, Etienne;
Mostafa, Valavi;
Roman, Hudak;
Benjamin, Lehmann;
Gutiérrez, Guzmán Francisco.
(2021)
Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin.
Academic chapter/article/Conference paper
-
Tartt, Kelly Jane;
Nejad, Amir R.;
Amiri, Abbas K.;
McDonald, A..
(2021)
On Lifetime Extension of Wind Turbine Drivetrains.
Academic chapter/article/Conference paper
-
Purcell, Etienne;
Nejad, Amir R.;
Valavi, Mostafa;
Bekker, Anriëtte.
(2021)
On Uncertainty Assessment of Fatigue Damage of Propulsion Shaft Under Ice Impact.
Academic chapter/article/Conference paper
-
Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2020)
Dynamic Behaviour Comparison of a 10-MW Drivetrain in a Bottom-Fixed Monopile and a Spar Floating Wind Turbines.
Academic chapter/article/Conference paper
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Wang, Shuaishuai;
Nejad, Amir Rasekhi;
Moan, Torgeir.
(2019)
Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines.
Academic chapter/article/Conference paper
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Ibrion, Mihaela;
Paltrinieri, Nicola;
Nejad, Amir Rasekhi.
(2019)
On Disaster Risk Reduction in Norwegian Oil and Gas Industry Through Life-Cycle Perspective.
Academic chapter/article/Conference paper
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Balestra, Lorenzo;
Nejad, Amir Rasekhi;
Naldi, Giovanni.
(2019)
On Design and Analysis of a Drivetrain Test Rig for Wind Turbine Health Monitoring.
Academic chapter/article/Conference paper
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Johansen, Sigrid S.;
Nejad, Amir Rasekhi.
(2019)
On Digital Twin Condition Monitoring Approach for Drivetrains in Marine Applications.
Academic chapter/article/Conference paper
-
Moghadam, Farid Khazaeli;
Nejad, Amir Rasekhi.
(2019)
Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring.
Academic chapter/article/Conference paper
-
Nejad, Amir Rasekhi.
(2018)
Modelling and Analysis of Drivetrains in Offshore Wind Turbines.
Academic chapter/article/Conference paper
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Nejad, Amir Rasekhi;
Li, Lin;
Acero, Wilson Ivan Guachamin;
Moan, Torgeir.
(2018)
A Systematic Design Approach of Gripper’s Hydraulic System Utilized in Offshore Wind Turbine Monopile Installation.
Academic chapter/article/Conference paper
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Nejad, Amir Rasekhi;
Bachynski, Erin Elizabeth;
Moan, Torgeir.
(2017)
On Tower Top Axial Acceleration and Drivetrain Responses in a Spar-Type Floating Wind Turbine.
Academic chapter/article/Conference paper
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Nejad, Amir R;
Xing, Yihan;
Moan, Torgeir.
(2012)
Gear Train Internal Dynamics in Large Offshore Wind Turbines.
Academic chapter/article/Conference paper
Report
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Nejad, Amir R.;
Breivik, Andreas;
Valavi, Mostafa.
(2021)
Fault Detection and Diagnosis of Induction Motor for Ship Propulsion by utilizing Electrical Signature and Finite Element Method.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
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Moghadam, Farid Khazaeli;
Nejad, Amir R..
(2021)
Vibration-Based Condition Monitoring of Drivetrains in Large Offshore Wind Turbines in a Digital Twin Perspective.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
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Tian, Yuan;
Nejad, Amir R.;
Zadeh, Mehdi.
(2019)
Development and Application of Digital Twin in Marine Propulsion System.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Nejad, Amir Rasekhi.
(2015)
Dynamic Analysis and Design of Gearboxes in Offshore Wind Turbines in a Structural Reliability Perspective.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
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Guo, Yi;
Keller, Jonathan;
LaCava, William;
Austin, Jason;
Nejad, Amir Rasekhi;
Halse, Chris.
(2015)
Recommendations on Model Fidelity for Wind Turbine Gearbox Simulations.
National Renewable Energy Laboratory
National Renewable Energy Laboratory
Report
Teaching
Courses
- TMR4535 - Marine Machinery, Specialization Course
- MR8402 - Reliability-Based Design and Operation of Marine Machinery
- TMR4256 - Marine technology 6 - Design of marine systems
- TMR5950 - Wind Turbine Energy - Offshore Engineering, Master Thesis
- TMR4330 - Marine Machinery - Design and Condition Monitoring
- SKOLE6622 - Technology and Research - Module III Wind Turbines and Conflicts of Interest
- TMR4530 - Marine Machinery, Specialization Project
- TMR4590 - Wind Turbine Energy - Offshore Engineering, Specialization Project
Outreach
2025
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PosterErik, Maatje; Ibrion, Mihaela; Nejad, Amir R.. (2025) Offshore Green Hydrogen Production: State of the Art and Hazard Analysis. EERA DeepWind - Offshore Wind R&D Conference , Trondheim 2025-01-14 - 2025-01-16
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Academic lectureNejad, Amir R.; Ibrion, Mihaela. (2025) Permanent Magnets in Offshore Wind: State of the Art, Future Trends and Risk. 2025 21st International Conference on the European Energy Market (EEM), Lisbon, Portugal, 2025 2025-05-27 - 2025-05-29
2024
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InterviewOftedahl, Live; Nejad, Amir R.. (2024) Felles erklæring om havvind mellom Norge og Belgia. NTNU Nyheter NTNU Nyheter [Internet] 2024-07-03
2023
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PosterKrathe, Veronica Liverud; Jonkman, Jason M.; Gebel, Jakob Vincent; Arreba, Irene Rivera; Nejad, Amir Rasekhi; Bachynski-Polic, Erin Elizabeth. (2023) Main bearing fatigue sensitivity to synthetic turbulence models. NAWEA/WindTech 2023 , Denver, Colorado 2023-10-30 - 2023-11-01
2022
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Academic lectureChabaud, Valentin Bruno; Moghadam, Farid Khazaeli; Nejad, Amir R.. (2022) Effect of tracking grid power command on drivetrain degradation – A multiscale farm control problem. EERA DeepWind'2022 conference , Trondheim 2022-01-19 - 2022-01-21
2021
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Academic lectureMoghadam, Farid Khazaeli; Nejad, Amir R.. (2021) Consequences of unequal droop control on degradation of next generation grid-forming wind turbines. Wind Energy Science Conference 2021 , Hannover, Germany 2021-05-25 - 2021-05-28
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Programme participationNejad, Amir R.; Ibrion, Mihaela. (2021) A Need for Interdisciplinary Education in Ocean Fields. ECO Magazine ECO Magazine [Journal] 2021-08-10
2020
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LectureNejad, Amir Rasekhi. (2020) Life Prediction and Health Monitoring of Marine Propulsion System under Ice Impact (HealthProp). Presentation of the ERA-NET Cofund MarTERA Call 2019 , Online 2020-09-15 - 2020-09-15
2019
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PosterMoghadam, Farid Khazaeli; Nejad, Amir Rasekhi. (2019) Drivetrain fault detection of multi-megawatt offshore wind turbines by statistical learning. WindEurope Offshore 2019 2019-11-26 - 2019-11-28
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Academic lectureMoghadam, Farid Khazaeli; Nejad, Amir Rasekhi. (2019) Drivetrain technology trend in multi megawatt offshore wind turbines considering design, fabrication, installation and operation. EERA DeepWind 2019 conference 2019-01-16 - 2019-01-18
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Academic lectureMoghadam, Farid Khazaeli; Nejad, Amir Rasekhi. (2019) Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring. ASME 2019 2nd International Offshore Wind Technical Conference (IOWTC2019) 2019-11-03 - 2019-11-06
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Academic lectureNejad, Amir Rasekhi. (2019) EAWE Drivetrain Technical Committee Workshop. Wind Europe , Bilbao 2019-04-02 - 2019-04-04
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Academic lectureNejad, Amir Rasekhi. (2019) Drivetrains in floating offshore wind turbines. Condition monitoring workshop , Lyon 2019-09-18 - 2019-09-19
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Academic lectureNejad, Amir Rasekhi. (2019) Drivetrain Optimization in Multi-megawatt Offshore Wind Turbines. Wind Energy Science Conference , Cork 2019-06-17 - 2019-06-20
2012
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Academic lectureNejad, Amir R; Moan, Torgeir. (2012) Effect of Geometrical Imperfections of Gears in Large Offshore Wind Turbine Gear Trains: 0.6–10 MW Case Studies. EWEA 2012 Annual Event 2012-04-16 - 2012-04-19