基于动态子结构法的加筋圆柱壳冲击环境预报

目前舰艇冲击环境预报已越来越受到各国海军重视，其主要的研究手段包括有限元数值仿真和实船水下爆炸试验。由于实船试验耗费大量人力、财力资源且受实验环境干扰较大，不具备重复性，而现代计算机技术发展使得有限元数值仿真模拟舰艇大型复杂结构提供可能，但是舰船局部细化设计过程中，修改局部参数仍然需要对整体结构进行仿真计算，计算机仿真过程中依旧消耗大量计算资源、时间成本。因此本文以保证数值仿真精度同时降低计算成本为根本目的，旨在提供一种基于子结构方法的舰艇整体结构模态信息求解和水下爆炸载荷作用下冲击环境预报技术。

Mounting Parameter Match Study of Power Transmission Assembly of Armored Tracked Vehicle

A vibration model of the mounting system of power transmission assembly of light armored tracked vehicle is established. Matlab code is used to solve for its natural frequency, main vibration mode and energy distribution matrix. Aiming at some serious problems such as a slightly high natural frequency and vibration coupling, sensitivity analysis is carried out, the sensitivity parameters are determined, and the rigidity is reasonably matched. As a result, the vibration isolation effect of the mounting system is greatly enhanced.