半浸状态下高速滑行体对波浪诱振的动力分析

针对高速滑行艇海豚不安定运动以及在波浪中的运动理论预测问题，因其运动微分方程式繁杂而且有许多假设和前提，需要在大型计算机上计算。应用简化了的高速滑行体模型在静水中滑行的升沉和纵摇运动的微分方程，提供了对不变侧缘角的高速滑行体在规则波浪中运动的动力分析方法。假定波长比滑行体长且滑行速度保持不变，通过对滑行体的流体诱振微分方程式的求解，得到其诱振响应的解析表达式。经验证，滑行体模型的理论计算与实验结果吻合较好，且计算简便。

Dynamic analysis of induced vibration in waves of high-speed planning hulls under semi-immersion

For high-speed sliding-barge dolphin unsteady movement and kinetic theory forecast problem in the wave,because its kinetic differential coefficient equation is complicated furthermore comprises many presumptions and premises,it meads to be calculated by a large-scale computer.This article applies the simplified differential coefficient equation on rising-sinking and swinging movement of high-speed sliding body model in the static water.The paper presents a method of theoretical prediction for the movement of high-speed planning hulls with a constant dead rise angle in regular waves.Supposing that the wave length is longer than the planning hull and the planning speed is constant,the analytical expression of the response of rising and sinking and longitudinal swing is obtained by means of the solving of the differential equation of fluid induced vibration on a planning hull.The theoretical calculation of planning hull model is consistent with the experimental result through testing and verifying,and its calculation is simple.