结构参数对弹上电子设备双层减振系统减振性能的影响规律研究

Study on the Laws of Effect of Structural Parameters on the Vibration-Absorption Characteristics of Missile-borne Electronic Equipments Double-layer Vibration Isolating System

针对弹上电子设备双层减振系统结构参数设计问题,研究了一二级减振系统的频率比、质量比、阻尼比对双层减振系统在随机振动激励下的绝对加速度响应峰值、全频段的加速度响应均方根值、高频段的加速度响应均方根值、相对位移响应均方根值、耦合频率等动力学参数的影响规律,得出一般性的结论,并探讨了双层减振技术的应用,可为弹上电子设备双层减振系统的减振性能设计提供理论支撑。

Facing the matters about structural parameters design of missile-borne electronic equipments double-layer vibration isolating system,the laws that how the frequency ratio,mass ratio and damp ratio of the 2nd layer vibration isolating system to the 1st layer vibration isolating system affecting acceleration peak value response,root mean square value of acceleration response in the whole frequency range,root mean square value of acceleration response in a higher frequency range,root mean square value of relative displacement response,coupling frequency of electronic equipments under random vibration excitation are studied,and some universal conclusions are drawn.Then the way to apply the double-layer vibration isolating technologies is discussed.The conclusions can be used to direct the design of double-layer vibration isolating system for well vibration-absorption.