Continuous fatigue assessment of offshore wind turbines using a stress prediction technique

Alexandros N. Iliopoulos; Christof Devriendt; Sokratis N. Iliopoulos; Danny Van Hemelrijck

doi:10.1117/12.2045576

9 March 2014 Continuous fatigue assessment of offshore wind turbines using a stress prediction technique

Alexandros N. Iliopoulos, Christof Devriendt, Sokratis N. Iliopoulos, Danny Van Hemelrijck

Proceedings Volume 9064, Health Monitoring of Structural and Biological Systems 2014; 90640S (2014) https://doi.org/10.1117/12.2045576
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Fatigue assessment includes estimation of the expected damage accumulation and the remaining life-time of the structure. This work is based on output-only vibration measurements at a limited number of locations provided by a sensor network installed on the structure. For the fatigue damage assessment, the stress time responses are obtained by using the vibration sensor data and a modal expansion approach enabling predictions of stresses at positions where sensor installation is not possible. A methodology for the prediction of stresses based on the combination of a finite element numerical model and the accelerations recorded at measurement locations is presented in this paper.

Citation Download Citation

Alexandros N. Iliopoulos, Christof Devriendt, Sokratis N. Iliopoulos, and Danny Van Hemelrijck "Continuous fatigue assessment of offshore wind turbines using a stress prediction technique", Proc. SPIE 9064, Health Monitoring of Structural and Biological Systems 2014, 90640S (9 March 2014); https://doi.org/10.1117/12.2045576

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