【摘要】 从流固耦合系统的位移和压强型有限元出发 ,利用伽辽金法获得了表面波影响矩阵。在时域内对离散方程组用改进Wilson -θ法 ,按子结构迭代求解。算例表明 :水深是决定表面波影响大小的主要因素之一 ;表面波的影响范围主要在库水表面附近 ,同时也表明 ,改进的Wilson -θ是有效的更多还原

【Abstract】 An influencing matrix of surface wave is derived by Galerkin method. In order to deal with a case of singular matrix, the coupling equations considering surface wave are solved by iterative method in time domain. The result shows that the influence of surface wave is small and it can be ignored. The result also shows the improved Wilson-θ method is effective to solve coupled fluid-structure problem.更多还原