油阻尼减振器阻尼特性计算机仿真研究

Computerized Simulation on Damping Characteristics of an Oil-Damping Shock Absorber

考虑油液的粘度、流动特性及其与物理结构的耦合方式等非线性因素建立了油液阻尼器衰减振动的数学模型并对其进行计算机仿真，同时通过巧妙的物理结构设计了结构微小的两种类型油液阻尼减振器原理样机，其多参数匹配试验研究表明所建仿真数学模型能较精确的模拟实际物理系统。

By considering nonlinear factors, for example, the viscosity of oil, flowing characteristics of oil, and the coupling characteristics between oil and physical structure etc., a mathematical model of oil-damping shock absorber for attenuating vibration is set up in this paper. In the meantime, two kinds of microminiature key-model machine of oil-damping shock absorber are designed by ingenious tactics for testing, and the study result in multi-parameter coupling dynamic test is illustrated to show the mathematical model can simulate the actual physical system of the oil-damping shock absorber.