Print Email Facebook Twitter Numerical investigation of response-conditioning wave techniques for short-term rare combined loading scenarios Title Numerical investigation of response-conditioning wave techniques for short-term rare combined loading scenarios Author Seyffert, Harleigh C. (TU Delft Ship Design, Production and Operations) Kana, A.A. (TU Delft Ship Design, Production and Operations) Troesch, A. W. (University of Michigan) Date 2020 Abstract Response-conditioning wave techniques are a rational way to link wave excitation environments with return-period extreme loading responses. By retaining the wave excitation which leads to a design response, these techniques can also define extreme combined loading scenarios. For complex or novel hull forms, combined loading may be relevant for evaluating structural reliability or adequacy. But using combined loading scenarios as inputs to high-fidelity structural or dynamic modeling tools implies that such load scenarios are realistic for the defined return-period. This paper investigates three response-conditioning wave techniques: a modified Equivalent Design Wave method, a modified Conditioned Random Response Wave method, and the Design Loads Generator, to evaluate how well they reproduce combined loading statistics for a 1000-hr return-period as compared to stochastic brute-force simulations. The investigation is carried out for extreme combined loading scenarios on a 110 m trimaran hull. The Design Loads Generator produces the most realistic extreme combined loading statistics as compared to the brute-force approach with a significant reduction in computation time based on combined load conditional probability density functions, cumulative density functions, and individual stochastic load vectors. Subject Combined loadingRare responsesResponse-conditioned wavesShort-term statisticsTrimaran To reference this document use: http://resolver.tudelft.nl/uuid:f7d98ebf-b7da-426b-9df0-55e0e942ac17 DOI https://doi.org/10.1016/j.oceaneng.2020.107719 ISSN 0029-8018 Source Ocean Engineering, 213 Part of collection Institutional Repository Document type journal article Rights © 2020 Harleigh C. Seyffert, A.A. Kana, A. W. Troesch Files PDF 1_s2.0_S0029801820307046_main.pdf 3.02 MB Close viewer /islandora/object/uuid:f7d98ebf-b7da-426b-9df0-55e0e942ac17/datastream/OBJ/view