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First order prediction correction method for dynamic wave responses considering fluid-structure-interaction
Author(s): 
Pages: 781-786
Year: Issue:  7
Journal: Journal of Ship Mechanics

Keyword:  流固耦合Morison公式直接积分法预估校正波浪动力响应;
Abstract: 文章基于流固耦合Morison公式和直接积分法,将待求解时刻的结构速度在上步速度处展开为Taylor级数并取至一阶精度,由此可以通过上步速度及加速度预估结构的下一步速度,从而实现对Morison波浪力的校正.避免了时间步长内的反复迭代.以Wilson-θ法为例,给出了多自由度结构在波浪作用下考虑流固耦合时动力响应的积分格式.算例分析表明,与不考虑流固耦合效应的结果相比,预估校正法计算的结构瞬态响应变小,特别是加速度和速度响应的减小更为明显,而稳态响应则逐渐趋于一致.
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