Impact analysis of wind turbines subjected to ship collision and blast loading

Mehreganian, Navid; Safa, Yasser; Boiger, Gernot Kurt

doi:10.1016/B978-0-323-91852-7.00008-8

Publication type:	Book part
Type of review:	Peer review (publication)
Title:	Impact analysis of wind turbines subjected to ship collision and blast loading
Authors:	Mehreganian, Navid Safa, Yasser Boiger, Gernot Kurt
et. al:	No
DOI:	10.1016/B978-0-323-91852-7.00008-8
Published in:	Multiphysics of Wind Turbines in Extreme Loading Conditions
Editors of the parent work:	Fallah, Arash Soleiman Khawaja, Hassan Abbas Moatamedi, Mojtaba
Page(s):	101
Pages to:	138
Issue Date:	18-Jan-2024
Publisher / Ed. Institution:	Academic Press
ISBN:	978-0-323-91852-7
Language:	English
Subjects:	Wind turbine; Ship collision; Local and global failure; Localized blast pressure; Dynamic plastic collapse
Subject (DDC):	530: Physics 620: Engineering
Abstract:	The structural integrity of Offshore Wind Turbines (OWT) is of prime significance, due to the significant dynamic stresses generated by the extreme blast and impact loads. The detrimental damage of such loads emanates from either large inelastic localized deformations or the global rotations which to the collapse of the wind turbine over the ship. In some circumstances, however, the combination of the two is imminent. In this work, we examine two scenarios of impact and blast phenomena on offshore wind turbines. In the first, the influence of gravity loads, wind velocity, vessel angle of attack, and its initial momentum, on the localized and global deformations is discussed. A numerical FE model is developed to further investigate the damage of the OWT struck by a commercial ship. In the second scenario, we develop a mathematical model to capture the blast response of cylindrical shells utilized in the OWT. By decomposing the load into a spatial part with constant magnitude and a temporal part characterized by a piecewise function, the analytical solution is sought for two distinguishable phases. The validation of the analytical model with the FE one shows the capability of the former to capture the dynamic plastic collapse of the shell with a good degree of accuracy.
URI:	https://digitalcollection.zhaw.ch/handle/11475/30278
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Mehreganian, N., Safa, Y., & Boiger, G. K. (2024). Impact analysis of wind turbines subjected to ship collision and blast loading. In A. S. Fallah, H. A. Khawaja, & M. Moatamedi (Eds.), Multiphysics of Wind Turbines in Extreme Loading Conditions (pp. 101–138). Academic Press. https://doi.org/10.1016/B978-0-323-91852-7.00008-8

Mehreganian, N., Safa, Y. and Boiger, G.K. (2024) ‘Impact analysis of wind turbines subjected to ship collision and blast loading’, in A.S. Fallah, H.A. Khawaja, and M. Moatamedi (eds) Multiphysics of Wind Turbines in Extreme Loading Conditions. Academic Press, pp. 101–138. Available at: https://doi.org/10.1016/B978-0-323-91852-7.00008-8.

N. Mehreganian, Y. Safa, and G. K. Boiger, “Impact analysis of wind turbines subjected to ship collision and blast loading,” in Multiphysics of Wind Turbines in Extreme Loading Conditions, A. S. Fallah, H. A. Khawaja, and M. Moatamedi, Eds. Academic Press, 2024, pp. 101–138. doi: 10.1016/B978-0-323-91852-7.00008-8.

MEHREGANIAN, Navid, Yasser SAFA und Gernot Kurt BOIGER, 2024. Impact analysis of wind turbines subjected to ship collision and blast loading. In: Arash Soleiman FALLAH, Hassan Abbas KHAWAJA und Mojtaba MOATAMEDI (Hrsg.), Multiphysics of Wind Turbines in Extreme Loading Conditions. Academic Press. S. 101–138. ISBN 978-0-323-91852-7

Mehreganian, Navid, Yasser Safa, and Gernot Kurt Boiger. 2024. “Impact Analysis of Wind Turbines Subjected to Ship Collision and Blast Loading.” In Multiphysics of Wind Turbines in Extreme Loading Conditions, edited by Arash Soleiman Fallah, Hassan Abbas Khawaja, and Mojtaba Moatamedi, 101–38. Academic Press. https://doi.org/10.1016/B978-0-323-91852-7.00008-8.

Mehreganian, Navid, et al. “Impact Analysis of Wind Turbines Subjected to Ship Collision and Blast Loading.” Multiphysics of Wind Turbines in Extreme Loading Conditions, edited by Arash Soleiman Fallah et al., Academic Press, 2024, pp. 101–38, https://doi.org/10.1016/B978-0-323-91852-7.00008-8.