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Språkvelger

Norsk

Amir R. Nejad

Amir R. Nejad

Professor
Department of Marine Technology
Faculty of Engineering

amir.nejad@ntnu.no
+4773595559 +4794180125 Jonsvannsveien 82, B429, Trondheim
ResearchGate Google Scholar MD Lab ResearchGate
About Publications Teaching Media

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)

Competencies

  • Condition assessment
  • Digital twin
  • Drivetrain
  • Dynamic modelling
  • Gearbox
  • Marine renewable energy
  • Mechanical Engineering
  • Offshore technology
  • Offshore vind
  • Reliabilty analysis
  • Vibration

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2022

  • 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. volum 203.
    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). volum 2265.
    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. volum 144 (6).
    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). volum 2265 (032065).
    Academic article
  • Nejad, Amir R.. (2022) Preface. Journal of Physics: Conference Series (JPCS). volum 2257 (1).
    Editorial
  • Nejad, Amir R.; Keller, Jonathan; Guo, Yi; Sheng, Shawn; Polinder, Henk; Watson, Simon; Dong, Jianning; Qin, Zian; Ebrahimi, Amir; Schelenz, Ralf; Guzmán, Francisco Gutiérrez; Cornel, Daniel; Golafshan, Reza; Jacob, Georg; Blockmans, Bart; Bosmans, Jelle; Pluymers, Bert; Carroll, James; Koukoura, Sofia; Hart, Edward; McDonald, Alasdair; Natarajan, Anand; Torsvik, Jone; Khazaeli Moghadam, Farid; Daems, Pieter-Jan; Verstraeten, Timothy; Peeters, Cédric; Helsen, Jan. (2022) Wind turbine drivetrains: state-of-the-art technologies and future development trends. Wind Energy Science. volum 7.
    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). volum 2265.
    Academic article
  • van Binsbergen, Diederik; 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). volum 2265.
    Academic article

2021

  • Berge, Vegard; Helgesen, Christoffer Rene; Ivanov, Dimitar Zdravkov; Jahren, Marianne Helno; Opstad, Pauline Sundvor; Sletten, Petter Solem; Nejad, Amir R.. (2021) On State-of-the-Art and Alternative Energy-Efficient Lifting Technologies for Deep Sea Mining. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 5: Ocean Space Utilization.
    Academic chapter/article
  • Ibrion, Mihaela; Nejad, Amir R.. (2021) On Building a Safe Ocean, The oceanscape and the necessity for developing an Ocean Culture. UN Decade of Ocean Science for Sustainable Development, SPECIAL ISSUE IN PARTNERSHIP WITH IOC-UNESCO.
    publications.POPVIT_KAPITTEL
  • 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. volum 125.
    Academic article
  • Khazaeli Moghadam, Farid; Nejad, Amir R.. (2021) Online condition monitoring of floating wind turbines drivetrain by means of digital twin. Mechanical systems and signal processing. volum 162.
    Academic article
  • Khazaeli Moghadam, Farid; 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. volum 509.
    Academic article
  • Khazaeli Moghadam, Farid; Nejad, Amir R.. (2021) Vibration-Based Condition Monitoring of Drivetrains in Large Offshore Wind Turbines in a Digital Twin Perspective. 2021. ISBN 978-82-326-6674-4.
    PhD thesis
  • Khazaeli Moghadam, Farid; 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. volum 85.
    Academic article
  • Mehlan, Felix Christian; Nejad, Amir R.; Gao, Zhen. (2021) Estimation of Wind Turbine Gearbox Loads for Online Fatigue Monitoring Using Inverse Methods. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic 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. 2021.
    Master thesis
  • Nejad, Amir R.; Purcell, Etienne; Mostafa, Valavi; Roman, Hudak; Benjamin, Lehmann; Francisco Gutiérrez, Guzmán; Felix, Behrendt; Angelo Mario, Bõhm; Franz, von Bock und Polach; Brendon M., Nickerson; Anriëtte, Bekker; Withold, Drazyk. (2021) Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 7: Polar and Arctic Sciences and Technology.
    Academic chapter/article
  • Purcell, Etienne; Nejad, Amir R.; Valavi, Mostafa; Bekker, Anriëtte. (2021) On Uncertainty Assessment of Fatigue Damage of Propulsion Shaft Under Ice Impact. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 7: Polar and Arctic Sciences and Technology.
    Academic chapter/article
  • R. Nejad, Amir; Torsvik, Jone. (2021) Drivetrains on floating offshore wind turbines: lessons learned over the last 10 years. Forschung im Ingenieurwesen. volum 85.
    Academic article
  • Tartt, Kelly Jane; Nejad, Amir R.; Amiri, Abbas K.; McDonald, A.. (2021) On Lifetime Extension of Wind Turbine Drivetrains. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic chapter/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. volum 79.
    Academic article
  • van Binsbergen, Diederik; Nejad, Amir R.; Helsen, Jan. (2021) Dynamic Model Development of Wind Turbine Drivetrains by Using Sensor Measurements. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic chapter/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. volum 179.
    Academic article
  • 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. volum 143 (3).
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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. volum 24 (7).
    Academic article

2020

  • Cho, Seongpil; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir; 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. volum 23 (2).
    Academic article
  • Dong, Wenbin; Rasekhi Nejad, Amir; 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. volum 65.
    Academic article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2020) Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period. Engineering Failure Analysis. volum 111.
    Academic article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2020) Learning from non-failure of Onagawa nuclear power station: an accident investigation over its life cycle. Results in Engineering (RINENG). volum 8.
    Academic article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2020) Evaluation of PMSG-based drivetrain technologies for 10 MW floating offshore wind turbines: pros and cons in a life-cycle perspective. Wind Energy. volum 23 (7).
    Academic article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2020) Natural frequency estimation by using torsional response, and applications for wind turbine drivetrain fault diagnosis. Journal of Physics: Conference Series (JPCS). volum 1618.
    Academic article
  • Lee, Chern Fong; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir. (2020) Consequences of load mitigation control strategies for a floating wind turbine. Journal of Physics: Conference Series (JPCS). volum 1669.
    Academic article
  • Moan, Torgeir; Gao, Zhen; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir. (2020) Recent Advances in Integrated Response Analsysis of Floating Wind Turbines in a Reliability Perspective. Journal of Offshore Mechanics and Arctic Engineering. volum 142 (5).
    Academic article
  • Rasekhi Nejad, Amir. (2020) Life Prediction and Health Monitoring of Marine Propulsion System under Ice Impact (HealthProp).
    Web pages (information material)
  • Rebouças, G. F. S.; Rasekhi Nejad, Amir. (2020) On Down-Scaled Modelling of Wind Turbine Drivetrains. Journal of Physics: Conference Series (JPCS). volum 1618 (5).
    Academic article
  • van Binsbergen, Dirk Willem; Wang, Shuaishuai; Rasekhi Nejad, Amir. (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). volum 1618.
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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. volum 161.
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2020) Dynamic Behaviour Comparison of a 10-MW Drivetrain in a Bottom-Fixed Monopile and a Spar Floating Wind Turbines. Proceedings of the Thirtieth (2020) International Ocean and Polar Engineering Conference Shanghai, China, October 11-16, 2020.
    Academic chapter/article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2020) On design, modelling, and analysis of a 10‐MW medium‐speed drivetrain for offshore wind turbines. Wind Energy. volum 23 (4).
    Academic article

2019

  • Balestra, Lorenzo; Rasekhi Nejad, Amir; Naldi, Giovanni. (2019) On Design and Analysis of a Drivetrain Test Rig for Wind Turbine Health Monitoring. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 10: Ocean Renewable Energy.
    Academic chapter/article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2019) On Disaster Risk Reduction in Norwegian Oil and Gas Industry Through Life-Cycle Perspective. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Structures, Safety, and Reliability.
    Academic chapter/article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2019) On risk of digital twin implementation in marine industry: Learning from aviation industry. Journal of Physics: Conference Series (JPCS). volum 1357 (1).
    Academic article
  • Johansen, Sigrid S.; Rasekhi Nejad, Amir. (2019) On Digital Twin Condition Monitoring Approach for Drivetrains in Marine Applications. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 10: Ocean Renewable Energy.
    Academic chapter/article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2019) Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring. ASME 2019 2nd International Offshore Wind Technical Conference.
    Academic chapter/article
  • Rasekhi Nejad, Amir; Aoyanagi, Yuriko; Ibrion, Mihaela. (2019) Team and Research Based Learning Methods Applied in Multidisciplinary Marine Engineering Education. Journal of Physics: Conference Series (JPCS). volum 1357 (1).
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 141 (3).
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2019) Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines. ASME 2019 2nd International Offshore Wind Technical Conference.
    Academic chapter/article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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). volum 1356:012024.
    Academic article

2018

  • 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. volum 21 (7).
    Academic article
  • Moan, Torgeir; Nejad, Amir Rasekhi. (2018) Proceedings of the 3rd Offshore Structural Reliability Conference (OSRC2016). 2018. ISBN 978-82-691120-0-9.
    Scientific anthology
  • Nejad, Amir Rasekhi. (2018) Modelling and Analysis of Drivetrains in Offshore Wind Turbines. Offshore Wind energy technology.
    Academic chapter/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. volum 21 (11).
    Academic article
  • Rasekhi Nejad, Amir; Li, Lin; Guachamin Acero, Wilson Ivan; Moan, Torgeir. (2018) A Systematic Design Approach of Gripper’s Hydraulic System Utilized in Offshore Wind Turbine Monopile Installation. ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering.
    Academic chapter/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). volum 1037 (4).
    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. volum 137.
    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. ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium.
    Academic chapter/article
  • Rasekhi Nejad, Amir; Moan, Torgeir. (2017) On model-based system approach for health monitoring of drivetrains in floating wind turbines. Procedia Engineering. volum 199.
    Academic article

2016

  • Ghane, Mahdi; Rasekhi Nejad, Amir; 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). volum 753.
    Academic article
  • Rasekhi Nejad, Amir; Bachynski, Erin Elizabeth; Li, Lin; Moan, Torgeir. (2016) Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines. Energy Procedia. volum 94.
    Academic article
  • Rasekhi Nejad, Amir; Guo, Yi; Gao, Zhen; Moan, Torgeir. (2016) Development of a 5 MW reference gearbox for offshore wind turbines. Wind Energy. volum 19 (6).
    Academic article
  • Rasekhi Nejad, Amir; 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). volum 753 (11).
    Academic article

2015

  • Guo, Yi; Keller, Jonathan; LaCava, William; Austin, Jason; Rasekhi Nejad, Amir; Halse, Chris; Bastard, Loic; Helsen, Jan. (2015) Recommendations on Model Fidelity for Wind Turbine Gearbox Simulations. 2015.
    Report
  • Rasekhi Nejad, Amir. (2015) Dynamic analysis and design of gearboxes in offshore wind turbines in a structural reliability perspective. Norges teknisk-naturvitenskapelige universitet. 2015. ISBN 978-82-326-1038-9. Doktoravhandlinger ved NTNU (191).
    PhD thesis
  • Rasekhi Nejad, Amir; 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. volum 101 (C).
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 42.
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 18 (12).
    Academic article

2014

  • Odgaard, Peter Fogh; Rasekhi Nejad, Amir. (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
  • Rasekhi Nejad, Amir; Gao, Zhen; Moan, Torgeir. (2014) Fatigue Reliability-Based Inspection and Maintenance Planning of Gearbox Components in Wind Turbine Drivetrains. Energy Procedia. volum 53.
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 61.
    Academic article
  • Rasekhi Nejad, Amir; Odgaard, Peter Fogh; Gao, Zhen; Moan, Torgeir. (2014) A prognostic method for fault detection in wind turbine drivetrains. Engineering Failure Analysis. volum 42.
    Academic article

2013

  • Rasekhi Nejad, Amir; Gao, Zhen; Moan, Torgeir. (2013) Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings. Energy Procedia. volum 35.
    Academic article

2012

  • Nejad, Amir R; Xing, Yihan; Moan, Torgeir. (2012) Gear Train Internal Dynamics in Large Offshore Wind Turbines. 2012 Proceedings of the ASME 11th Biennial Conference on Engineering Systems Design and Analysis (ESDA2012)-Volume 3.
    Academic chapter/article

Scientific articles

  • 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. volum 203.
    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). volum 2265.
    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. volum 144 (6).
    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). volum 2265 (032065).
    Academic article
  • Nejad, Amir R.; Keller, Jonathan; Guo, Yi; Sheng, Shawn; Polinder, Henk; Watson, Simon; Dong, Jianning; Qin, Zian; Ebrahimi, Amir; Schelenz, Ralf; Guzmán, Francisco Gutiérrez; Cornel, Daniel; Golafshan, Reza; Jacob, Georg; Blockmans, Bart; Bosmans, Jelle; Pluymers, Bert; Carroll, James; Koukoura, Sofia; Hart, Edward; McDonald, Alasdair; Natarajan, Anand; Torsvik, Jone; Khazaeli Moghadam, Farid; Daems, Pieter-Jan; Verstraeten, Timothy; Peeters, Cédric; Helsen, Jan. (2022) Wind turbine drivetrains: state-of-the-art technologies and future development trends. Wind Energy Science. volum 7.
    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). volum 2265.
    Academic article
  • van Binsbergen, Diederik; 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). volum 2265.
    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. volum 125.
    Academic article
  • Khazaeli Moghadam, Farid; Nejad, Amir R.. (2021) Online condition monitoring of floating wind turbines drivetrain by means of digital twin. Mechanical systems and signal processing. volum 162.
    Academic article
  • Khazaeli Moghadam, Farid; 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. volum 509.
    Academic article
  • Khazaeli Moghadam, Farid; 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. volum 85.
    Academic article
  • R. Nejad, Amir; Torsvik, Jone. (2021) Drivetrains on floating offshore wind turbines: lessons learned over the last 10 years. Forschung im Ingenieurwesen. volum 85.
    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. volum 79.
    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. volum 179.
    Academic article
  • 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. volum 143 (3).
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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. volum 24 (7).
    Academic article
  • Cho, Seongpil; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir; 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. volum 23 (2).
    Academic article
  • Dong, Wenbin; Rasekhi Nejad, Amir; 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. volum 65.
    Academic article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2020) Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period. Engineering Failure Analysis. volum 111.
    Academic article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2020) Learning from non-failure of Onagawa nuclear power station: an accident investigation over its life cycle. Results in Engineering (RINENG). volum 8.
    Academic article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2020) Evaluation of PMSG-based drivetrain technologies for 10 MW floating offshore wind turbines: pros and cons in a life-cycle perspective. Wind Energy. volum 23 (7).
    Academic article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2020) Natural frequency estimation by using torsional response, and applications for wind turbine drivetrain fault diagnosis. Journal of Physics: Conference Series (JPCS). volum 1618.
    Academic article
  • Lee, Chern Fong; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir. (2020) Consequences of load mitigation control strategies for a floating wind turbine. Journal of Physics: Conference Series (JPCS). volum 1669.
    Academic article
  • Moan, Torgeir; Gao, Zhen; Bachynski, Erin Elizabeth; Rasekhi Nejad, Amir. (2020) Recent Advances in Integrated Response Analsysis of Floating Wind Turbines in a Reliability Perspective. Journal of Offshore Mechanics and Arctic Engineering. volum 142 (5).
    Academic article
  • Rebouças, G. F. S.; Rasekhi Nejad, Amir. (2020) On Down-Scaled Modelling of Wind Turbine Drivetrains. Journal of Physics: Conference Series (JPCS). volum 1618 (5).
    Academic article
  • van Binsbergen, Dirk Willem; Wang, Shuaishuai; Rasekhi Nejad, Amir. (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). volum 1618.
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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. volum 161.
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2020) On design, modelling, and analysis of a 10‐MW medium‐speed drivetrain for offshore wind turbines. Wind Energy. volum 23 (4).
    Academic article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2019) On risk of digital twin implementation in marine industry: Learning from aviation industry. Journal of Physics: Conference Series (JPCS). volum 1357 (1).
    Academic article
  • Rasekhi Nejad, Amir; Aoyanagi, Yuriko; Ibrion, Mihaela. (2019) Team and Research Based Learning Methods Applied in Multidisciplinary Marine Engineering Education. Journal of Physics: Conference Series (JPCS). volum 1357 (1).
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 141 (3).
    Academic article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; 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). volum 1356:012024.
    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. volum 21 (7).
    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. volum 21 (11).
    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). volum 1037 (4).
    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. volum 137.
    Academic article
  • Rasekhi Nejad, Amir; Moan, Torgeir. (2017) On model-based system approach for health monitoring of drivetrains in floating wind turbines. Procedia Engineering. volum 199.
    Academic article
  • Ghane, Mahdi; Rasekhi Nejad, Amir; 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). volum 753.
    Academic article
  • Rasekhi Nejad, Amir; Bachynski, Erin Elizabeth; Li, Lin; Moan, Torgeir. (2016) Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines. Energy Procedia. volum 94.
    Academic article
  • Rasekhi Nejad, Amir; Guo, Yi; Gao, Zhen; Moan, Torgeir. (2016) Development of a 5 MW reference gearbox for offshore wind turbines. Wind Energy. volum 19 (6).
    Academic article
  • Rasekhi Nejad, Amir; 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). volum 753 (11).
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 101 (C).
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 42.
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 18 (12).
    Academic article
  • Odgaard, Peter Fogh; Rasekhi Nejad, Amir. (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
  • Rasekhi Nejad, Amir; Gao, Zhen; Moan, Torgeir. (2014) Fatigue Reliability-Based Inspection and Maintenance Planning of Gearbox Components in Wind Turbine Drivetrains. Energy Procedia. volum 53.
    Academic article
  • Rasekhi Nejad, Amir; 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. volum 61.
    Academic article
  • Rasekhi Nejad, Amir; Odgaard, Peter Fogh; Gao, Zhen; Moan, Torgeir. (2014) A prognostic method for fault detection in wind turbine drivetrains. Engineering Failure Analysis. volum 42.
    Academic article
  • Rasekhi Nejad, Amir; Gao, Zhen; Moan, Torgeir. (2013) Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings. Energy Procedia. volum 35.
    Academic article

Journal publications

  • Nejad, Amir R.. (2022) Preface. Journal of Physics: Conference Series (JPCS). volum 2257 (1).
    Editorial

Books

  • Moan, Torgeir; Nejad, Amir Rasekhi. (2018) Proceedings of the 3rd Offshore Structural Reliability Conference (OSRC2016). 2018. ISBN 978-82-691120-0-9.
    Scientific anthology

Part of book/report

  • Berge, Vegard; Helgesen, Christoffer Rene; Ivanov, Dimitar Zdravkov; Jahren, Marianne Helno; Opstad, Pauline Sundvor; Sletten, Petter Solem; Nejad, Amir R.. (2021) On State-of-the-Art and Alternative Energy-Efficient Lifting Technologies for Deep Sea Mining. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 5: Ocean Space Utilization.
    Academic chapter/article
  • Ibrion, Mihaela; Nejad, Amir R.. (2021) On Building a Safe Ocean, The oceanscape and the necessity for developing an Ocean Culture. UN Decade of Ocean Science for Sustainable Development, SPECIAL ISSUE IN PARTNERSHIP WITH IOC-UNESCO.
    publications.POPVIT_KAPITTEL
  • Mehlan, Felix Christian; Nejad, Amir R.; Gao, Zhen. (2021) Estimation of Wind Turbine Gearbox Loads for Online Fatigue Monitoring Using Inverse Methods. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic chapter/article
  • Nejad, Amir R.; Purcell, Etienne; Mostafa, Valavi; Roman, Hudak; Benjamin, Lehmann; Francisco Gutiérrez, Guzmán; Felix, Behrendt; Angelo Mario, Bõhm; Franz, von Bock und Polach; Brendon M., Nickerson; Anriëtte, Bekker; Withold, Drazyk. (2021) Condition Monitoring of Ship Propulsion Systems: State-of-the-Art, Development Trend and Role of Digital Twin. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 7: Polar and Arctic Sciences and Technology.
    Academic chapter/article
  • Purcell, Etienne; Nejad, Amir R.; Valavi, Mostafa; Bekker, Anriëtte. (2021) On Uncertainty Assessment of Fatigue Damage of Propulsion Shaft Under Ice Impact. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering Volume 7: Polar and Arctic Sciences and Technology.
    Academic chapter/article
  • Tartt, Kelly Jane; Nejad, Amir R.; Amiri, Abbas K.; McDonald, A.. (2021) On Lifetime Extension of Wind Turbine Drivetrains. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic chapter/article
  • van Binsbergen, Diederik; Nejad, Amir R.; Helsen, Jan. (2021) Dynamic Model Development of Wind Turbine Drivetrains by Using Sensor Measurements. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
    Academic chapter/article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2020) Dynamic Behaviour Comparison of a 10-MW Drivetrain in a Bottom-Fixed Monopile and a Spar Floating Wind Turbines. Proceedings of the Thirtieth (2020) International Ocean and Polar Engineering Conference Shanghai, China, October 11-16, 2020.
    Academic chapter/article
  • Balestra, Lorenzo; Rasekhi Nejad, Amir; Naldi, Giovanni. (2019) On Design and Analysis of a Drivetrain Test Rig for Wind Turbine Health Monitoring. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 10: Ocean Renewable Energy.
    Academic chapter/article
  • Ibrion, Mihaela; Paltrinieri, Nicola; Rasekhi Nejad, Amir. (2019) On Disaster Risk Reduction in Norwegian Oil and Gas Industry Through Life-Cycle Perspective. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Structures, Safety, and Reliability.
    Academic chapter/article
  • Johansen, Sigrid S.; Rasekhi Nejad, Amir. (2019) On Digital Twin Condition Monitoring Approach for Drivetrains in Marine Applications. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. Volume 10: Ocean Renewable Energy.
    Academic chapter/article
  • Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2019) Experimental Validation of Angular Velocity Measurements for Wind Turbines Drivetrain Condition Monitoring. ASME 2019 2nd International Offshore Wind Technical Conference.
    Academic chapter/article
  • Wang, Shuaishuai; Rasekhi Nejad, Amir; Moan, Torgeir. (2019) Design and Dynamic Analysis of a Compact 10 MW Medium Speed Gearbox for Offshore Wind Turbines. ASME 2019 2nd International Offshore Wind Technical Conference.
    Academic chapter/article
  • Nejad, Amir Rasekhi. (2018) Modelling and Analysis of Drivetrains in Offshore Wind Turbines. Offshore Wind energy technology.
    Academic chapter/article
  • Rasekhi Nejad, Amir; Li, Lin; Guachamin Acero, Wilson Ivan; Moan, Torgeir. (2018) A Systematic Design Approach of Gripper’s Hydraulic System Utilized in Offshore Wind Turbine Monopile Installation. ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering.
    Academic chapter/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. ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium.
    Academic chapter/article
  • Nejad, Amir R; Xing, Yihan; Moan, Torgeir. (2012) Gear Train Internal Dynamics in Large Offshore Wind Turbines. 2012 Proceedings of the ASME 11th Biennial Conference on Engineering Systems Design and Analysis (ESDA2012)-Volume 3.
    Academic chapter/article

Report

  • Khazaeli Moghadam, Farid; Nejad, Amir R.. (2021) Vibration-Based Condition Monitoring of Drivetrains in Large Offshore Wind Turbines in a Digital Twin Perspective. 2021. ISBN 978-82-326-6674-4.
    PhD thesis
  • 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. 2021.
    Master thesis
  • Guo, Yi; Keller, Jonathan; LaCava, William; Austin, Jason; Rasekhi Nejad, Amir; Halse, Chris; Bastard, Loic; Helsen, Jan. (2015) Recommendations on Model Fidelity for Wind Turbine Gearbox Simulations. 2015.
    Report
  • Rasekhi Nejad, Amir. (2015) Dynamic analysis and design of gearboxes in offshore wind turbines in a structural reliability perspective. Norges teknisk-naturvitenskapelige universitet. 2015. ISBN 978-82-326-1038-9. Doktoravhandlinger ved NTNU (191).
    PhD thesis

Teaching

Courses

  • TMR4535 - Marine Machinery, Specialization Course
  • MR8402 - Reliability-Based Design and Operation of Marine Machinery
  • TMR5950 - Wind Turbine Energy - Offshore Engineering, Master Thesis
  • HAV6001 - Load simulation and structural design of offshore wind turbines
  • TMR4330 - Marine Machinery - Design and Condition Monitoring
  • TMR4530 - Marine Machinery, Specialization Project
  • TMR4590 - Wind Turbine Energy - Offshore Engineering, Specialization Project

Media

2022

  • Academic lecture
    Chabaud, Valentin Bruno; Khazaeli Moghadam, Farid; 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

  • Academic lecture
    Khazaeli Moghadam, Farid; Nejad, Amir R.. (2021) Consequences of unequal droop control on degradation of next generation grid-forming wind turbines. Wind Energy Science Conference 2021 . ForWind; Hannover, Germany. 2021-05-25 - 2021-05-28.
  • Documentary
    Nejad, Amir R.. (2021) Viking Sky blackout highlights safety potential of digital twin. null [Fagblad]. 2021-06-01.
  • Programme participation
    Nejad, Amir R.; Ibrion, Mihaela. (2021) A Need for Interdisciplinary Education in Ocean Fields. ECO Magazine [Fagblad]. 2021-08-10.

2020

  • Lecture
    Rasekhi Nejad, Amir. (2020) Life Prediction and Health Monitoring of Marine Propulsion System under Ice Impact (HealthProp). Presentation of the ERA-NET Cofund MarTERA Call 2019 . MarTERA; Online. 2020-09-15 - 2020-09-15.

2019

  • Poster
    Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (2019) Drivetrain fault detection of multi-megawatt offshore wind turbines by statistical learning. WindEurope Offshore 2019 ; 2019-11-26 - 2019-11-28.
  • Academic lecture
    Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (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.
  • Academic lecture
    Khazaeli Moghadam, Farid; Rasekhi Nejad, Amir. (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.
  • Academic lecture
    Rasekhi Nejad, Amir. (2019) Drivetrain Optimization in Multi-megawatt Offshore Wind Turbines. Wind Energy Science Conference . European Academy of Wind Energy; Cork. 2019-06-17 - 2019-06-20.
  • Academic lecture
    Rasekhi Nejad, Amir. (2019) Drivetrains in floating offshore wind turbines. Condition monitoring workshop . INSA Lyon; Lyon. 2019-09-18 - 2019-09-19.
  • Academic lecture
    Rasekhi Nejad, Amir. (2019) EAWE Drivetrain Technical Committee Workshop. Wind Europe . European Academy of Wind Energy; Bilbao. 2019-04-02 - 2019-04-04.

2012

  • Academic lecture
    Nejad, 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.
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