摘要
从电子设备和元件的减振问题出发，利用随机振动理论对双层减振问题作了研究；推导出双自由度系统质点绝对加速度及相对位移均方值的函数表达式，给出了系统结构参数与系统响应间的关系曲线；得出了随机激振下双层减振系统结构参数的确定方法．
The vibration problem of double-deck isolation system under random excitation is studied in the paper. The analytical expressions of the mean square value of the absolute accelations and relative displacements at the mass points of two degrees of freedom system are derived. The relationship between the structural parameters and the system response is illustrated by relation curves and then the identification method of the structural parameters of double-deck isolation system is presented.
关键词
双层减振
随机振动
结构参数
振动理论
double-deck isolation system
random vibration
structural parameter
