Abstract
This work has focused on investigating the comparative performance of the conventional type of offshore jacket substructure and a modified twisted-tripod jacket type (MTJ) under static and dynamic loading environment. Conventional four-legged and four number of MTJ structures, with a finite number of leg twisting angles from 0° to 90°, for supporting 5 MW NREL wind turbine were analysed for a selected site. In order to compare performance under dynamic loading, the dimensions of the structures were designed iteratively using static stress analysis to ensure that all structures had a similar level of load-carrying capability. Static analyses were performed using SACS v8 and models were imported to SAP-2000 for dynamic response spectrum analyses. The results obtained here reveal that, in addition to savings in material costs, the modified twisted-tripod jacket performs more efficiently than conventional four-legged jackets. This study has established a framework of procedure for simplified analysis of wind turbine jackets under dynamic loading environment.
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Acknowledgement
Authors wish to greatly acknowledge the Management of Walchand College of Engineering Sangli for supporting this research through TEQIP-III.
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Desai, R., Makwana, K., Potnis, S. (2020). Structural Performance Assessment of Offshore Wind Turbine Jackets-a Comparative Study Under Dynamic Loading Environment. In: Pawar, P., Ronge, B., Balasubramaniam, R., Vibhute, A., Apte, S. (eds) Techno-Societal 2018 . Springer, Cham. https://doi.org/10.1007/978-3-030-16848-3_74
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DOI: https://doi.org/10.1007/978-3-030-16848-3_74
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