Abstract
ABSTRACTThe most reliable technique for predicting the statistical properties of the response of an offshore structure to random wave loading is the conventional time simulation method (CTS). However, this study is concerned to reduce the computational demand of this method due to long simulation needed for stable results. To this end, a more efficient version of the time simulation technique (ETS) has been introduced which divides the simulated response extreme values into several groups based on the magnitude of the extreme values of their associated surface elevation or linear response records. The method has proved to be very efficient for both low and high-intensity sea states. In this study, the 100-year extreme responses from ETS and CTS methods have been compared to examine the accuracy of the ETS technique. Overall, the ETS technique was found to be many times more efficient than the conventional method.
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