EVACES conference in San Diego, United States
From the 12th to 14th of July, former Postdoc Daniel Cantero attended the 7th International Conference on Experimental Vibration Analysis for Civil Engineering Structures in San Diego, California, United States. The conference was hosted by the Department of Structural Engineering of the University of California, San Diego. The EVACES2017 aims to bring together engineers, scientists, researchers, and practitioners to provide a forum to disseminate and discuss latest developments and achievements in all major aspects of dynamic testing of civil engineering structures. Daniel Cantero presented his paper entitled “Time-frequency analysis of suspension bridge response for identification of vortex induced vibrations”, co-authored by Associate professor Ole Øiseth and Professor Anders Rønnquist.
Visit to Southwest Jiaotong University in Chengdu, China
Sunday the 9th of July, members of the Structural Dynamics group visited the Southwest Jiaotong University in Chengdu, China to discuss future collaboration with the railway group at the University. Professor Anders Rønnquist held a presentation about NTNU and the group’s research, and representatives from SWJTU presented their work. One of their PhD candidates, Fuchuan Duan, is going to spend one year here at NTNU working on his thesis, arriving this fall.Thanks to Professor Zhigang Liu at the Southwest Jiaotong University for arranging this nice and highly interesting visit. The guided tour of the Giant Panda Breeding and Research Base was also greatly appreciated. We are looking forward to future collaborations, and hope for more productive and fruitful discussions within the near future.
ICRT conference in Chengdu, China
From the 10th to 12th of July, members of the Structural Dynamics group attended the First International Conference on Rail Transportation in Chengdu, China. The conference was hosted by the Southwest Jiaotong University in Chengdu, and co-sponsored by the International Journal of Rail Transportation.
Professor Anders Rønnquist was specially invited to the conference, and held an invited lecture at a catenary system session. Postdoc Petter Nåvik and PhD candidate Gunnstein Frøseth also presented at the conference, accompanied by newly started PhD candidate Stefano Derosa. The conference was highly interesting, and the group hope to attend the next ICRT conference.
PhD award to Aksel Fenerci at the EACWE conference
The Structural Dynamics group proudly announces that Aksel Fenerci was awarded the PhD award for the best young researcher's paper and presentation at the 7th European and African Conference on Wind Engineering held in Liege, Belgium. His paper entitled “Evaluation of wind-induced response predictions of a long-span suspension bridge using full-scale measurements” is available on ResearchGate and on his NTNU profile.
EACWE conference in Liege, Belgium
From the 4th to 7th of July, members of the Structural Dynamics group attended the 7th European and African Conference on Wind Engineering (EAWCE 2017) in Liege, Belgium. The conference was the 7th in a series of European and African conferences organized on a four-year cycle under the auspices of the International Association of Wind Engineering. A total of 235 delegates participated on the conference.
Associate professor Ole Øiseth and PhD candidates Aksel Fenerci, Tor Martin Lystad, Bartosz Siedziako and Henrik Skyvulstad held presentations at the conference, where Aksel Fenerci was given an award for best PhD paper. This is a great accomplishment and the group’s second award this year. Congrats Aksel!
Structural Dynamics group seminar
Thursday June 29, the biannual Structural Dynamics group seminar was held at the Department of Structural Engineering, NTNU. A selection of group members held a 45 min presentation on a topic related to their work, on the format of an introductory lecture. Each lecture presented the basics of the topic and progress into more detail at a level which everyone in the group were able to follow. The following presentations were held:
- Introduction to bridge weigh-in-motion. Daniel Cantero Lauer
- A primer on force identification by Kalman filters. Øyvind W. Petersen
- Fundamentals of the strain gage and strain gage measurements. Gunnstein T. Frøseth
- A lecture on operational modal analysis and stochastic subspace identification. Knut A. K. Kvåle
All presentations were very interesting and informative, and gave rise to fruitful discussions on the topics. The seminar day was completed with dinner at Bakklandet.
ICESD conference in Reykjavík, Iceland
From the 12th to 14th of June, members of the Structural Dynamics group attended the International Conference on Earthquake engineering and Structural Dynamics (ICESD 2017) in Reykjavík, Iceland. The conference was organized in honour of late Professor Ragnar Sigbjörnsson, an Icelandic professor that worked as a professor at NTNU from 2009 until his death in July 2015. Sigbjörnsson was an influential researcher, and supervised several PhD students during his time at NTNU.
The group’s contribution was highly appreciated by the conference organizers, thanking us for our strong presence and excellent presentations. Professor Anders Rønnquist held a keynote presentation, and all four PhD candidates (A. Fenerci, K.A. Kvåle, Ø.W. Petersen and B. Siedziako) presented their work. We really enjoyed the conference and our stay on Iceland, and hope to return some time in the future.
Visit to Politecnico di Milano
From the 10th to 13th of May, the majority of the Dynamics group visited Politecnico di Milano in Milan, Italy to discuss future collaboration with the railway and wind tunnel groups at the university. Members from the Dynamics group held presentations at both the railway and wind engineering session, as well as representatives from Politecnico di Milano, which resulted in many fruitful discussions. The guided tours of the impressive lab facilities (railway and wind tunnel) were highly appreciated.
Thanks to Professors Alberto Zasso and Andrea Collina at Politecnico for arranging this nice and highly interesting visit. We are looking forward to future collaborations and hope for more productive and fruitful discussions here at NTNU within the near future.
Multi-Purpose Floating Structures seminar and workshop
From February 27nd to March 3rd, representatives from the Structural Dynamics group attended the Multi-Purpose Floating Structures (MPFS) seminar and workshop hosted by SINTEF. A delegation from the National University of Singapore attended, in addition to representatives from SINTEF, the Norwegian Public Roads Administration, NTNU and large industrial companies (JTC, Sembcorp Marine, Keppel, Hyundai, Dr Techn Olav Olsen).
Tuesday February 28th, delegates from SINTEF and PhD candidate Knut Andreas Kvåle from the Structural Dynamics group arranged a site visit to the Bergsøysund bridge amongst others. A news coverage from this field trip was recently posted in Tidens Krav (credit: Tore Dyrnes, Tidens Krav). Associate professor Ole Øiseth and PhD candidates Knut Andreas Kvåle, Øyvind Wiig Petersen and Yuwang Xu all held inspiring presentations at the workshop.
Thanks to SINTEF for arranging this interesting workshop, which gave a lot of good insight on multi-purpose floating structures and many fruitful discussions. We hope to maintain the good relations with the National University of Singapore, and hope to attend similar workshops within the near future.
New life for the old Hell railway bridge
The old railway bridge crossing the river Stjørdalselva is currently being dismantled, and one of the spans moved to an onshore research facility to be used in a 10 year long research project. Professor Anders Rønnquist at the Structural Dynamics group is coordinating the research project named “Testarena Hell”, which will involve researchers, PhD candidates and students at both NTNU and SINTEF. The project is funded by Jernbanedirektoratet and Bane NOR.
The project has gotten a lot of publicity recently. For more information about the project, see the news coverage by NRK Midtnytt, and the articles in Adresseavisen and Bladet.
Bartosz Siedziako awarded at the WES 2016 Conference
Field trip to the Skansen railway bridge
Friday October 28, representatives from the Structural Dynamics group, KTH Royal Institute of Technology (Stockholm), the Norwegian National Rail Administration (Jernbaneverket) and five master students went on a field trip to the old Skansen railway bridge in Brattøra, Trondheim. The main motivation behind the trip was to show the students how this years master theses relate to existing bridges and current problems concering bridge design. The Structural Dynamics group wants to thank Arne Vik and Jon Erik Haugen from the Norwegian National Rail Administration for sharing all their knowledge about the bridge. All participants found the excursion very interesting, and we hope to arrange similar field trips within the near future!
Dynamic response of the Gamle Bybro (Old Town Bridge) in Trondheim
During Trondheim marathon, runners experienced large vibrations when crossing the Gamle Bybro (Old Town Bridge) in Trondheim. Does the bridge respond unfavourably to frequencies corresponding to typical running pace? The Structural Dynamics group at NTNU and SINTEF were engaged by the local government in Trondheim (Trondheim Bydrift) to investigate the dynamic behaviour of the Gamle Bybro.
The following news coverage by NRK (Norwegian Broadcasting Corporation) shows a video of the testing of the Gamle Bybro.
Fifth annual KMEK-seminar (Structural Mechanics seminar) at Clarion Hotel & Congress Trondheim
The fifth annual KMEK-seminar (Structural Mechanics seminar) was held at Clarion Hotel & Congress in Trondheim Monday June 6th. There were participants from the conceptual structural design, nanomechanics, structural dynamics and timber engineering groups at the Department of Structural Engineering. All PhD candidates at the dynamics group, in addition to professor Anders Rønnquist and associate professor Ole Øiseth, contributed with inspiring presentations.
Inspection of the old Hell railway bridge
Representatives from the dynamics group, Veidekke and the Norwegian National Rail Administation were inspecting the old Hell railway bridge in Stjørdal outside Trondheim. The inspection was in connection with an extensive measurement program recently commenced to examine the life time of railway bridges. Both SINTEF and NTNU will use this old railway bridge for research and testing for ten years to come.
More information about the inspection, and project, can be read in the Hell bridge news coverage by Adresseavisen.
New PhDs aug 2016
Four new PhD candidates joined the Structural Dynamics group in August. Welcome!
New PhD position
Petter Nåvik's defense
Thursday October 27., PhD candidate Petter Røe Nåvik will defend his thesis.
The trial lecture will take place from 10:15-11:00 in Disputasrommet, Gløshaugen on the following prescribed subject: "Ballast vs ballast free tracks used in tunnels and open air in Norway, challenges and opportunitites of the dynamic performance for higher train speed".
The public defence of the thesis takes place from 13:15-14:00 in Disputasrommet, Gløshaugen. The title of the thesis is: "Dynamic behaviour of existing and new railway catenary systems under Norwegian conditions."