水下结构动力装置的振动计算与响应分析

Vibration Calculation and Response Analysis of Power Plant in Underwater Vehicle

推导了求解水下结构动力装置振动的有限元分析方法,在求得固有频率和主振型的基础上,根据主机的激励特性进一步求得动力装置的振动响应,研究了支承刚度对横振频率、振型以及振动响应的影响规律。

A method based on the finite element analysis was induced to analyze the vibration property of the underwater vehicle. After the natural frequencies and the shape modes were derived, the response of the power plant of the vehicle was then calculated according to the excitation of the main engine. The influences of the stiffness of the bearing on the response were investigated. The results show that the above mentioned method is practical in analyzing the dynamical property of the power plant.