多层环形钢板阻尼器隔振系统建模与仿真研究

Research on damper with multilayer steel plates modeling and simulation of isolation system

为了满足航空航天等特殊工况下阻尼减振的需要,研制了多层环形钢板阻尼器,该阻尼器借助于载荷作用下多层金属环之间的摩擦力实现阻尼隔振.并进行了多层环形钢板阻尼器的结构设计;根据动力学原理,建立了阻尼器的振动系统模型及系统方程;利用相轨迹方法获得了自由振动相图;以实验研究为基础进行了动态仿真,并对仿真结果加以分析,获得了多层环形钢板阻尼振动系统的动态特性.

Damper with multilayer steel plates is researched for satisfying the needs of severe working condition in aerospace and astronautic engineering. The isolation of this damper is performed by the friction force caused by relative slip between plate layers under loading. The structure of multilayer damper is designed, and the modeling of isolation system of this damper and the differential equation of motion are explored, based on the principle of dynamics. The phase planes of free vibration are obtained by trajectory of system. The dynamic simulation is exploited experimentally and dynamical characteristics of the system are concluded from simulation results.