有阻尼智能弹簧减振系统参数的一种设计方法  

A parametric design method for a smart damped spring vibration reduction system

作　　者：倪德[1] 朱如鹏[1] 陆凤霞[1] 付秋菊[1] 鲍和云[1] 

机构地区：[1]南京航空航天大学机电学院江苏省精密与微细制造技术重点实验室,南京210016

出　　处：《振动与冲击》2014年第23期116-121,144,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金(51375226);高等学校博士学科点专项科研基金资助课题(20113218110017);江苏省高校优势学科建设工程资助;江苏省普通高校研究生科研创新计划资助项目(CXZZ11_0199);中央高校基本科研业务费专项资金资助

摘　　要：研究简谐激励下有阻尼智能弹簧减振系统参数的一种设计方法,使系统能同时实现阻尼与刚度控制。首先,利用等效线性化方法得到系统频响特性的的解析解。然后,分析了系统参数对幅频特性的影响,得到如下结论:系统无粘性阻尼时,幅频特性曲线簇有一个公共点,有阻尼时公共点消失;影响系统幅频特性的主要参数为质量比、刚度比、阻尼比和控制参数;阻尼比和相对阻尼比影响系统实现完全耦合时所需作动力的大小。最后,根据参数分析的结论,确定系统参数的选用范围,并给出系统参数设计的方法和步骤。A design method for system parameters of a smart spring system with linear viscous damping under harmonic excitation was presented,it could make the smart spring system implement both stiffness and damping control.Firstly,the analytical solutions to the frequency response characteristics of the smart spring system were deduced with the equivalent linearization method. Then,the influence of the system parameters on the amplitude frequency characteristics of the system was analyzed. The results showed that the amplitude frequency characteristic curve cluster has a common point for the smart spring system without viscous damping,but the common point disappears for the system with damping;the main parameters affecting the amplitude frequency characteristics of the system are mass ratio,stiffness ratio,damping ratio and control parameter; the system parameters affecting the magnitude of required actuator force to make two massspring systems become fully coupled are damping ratio and relative damping ratio. Based on the conclusions of the above parametric analysis,the selection scopes of the system parameters of the smart spring system were determined and the steps of parametric design were proposed.

关 键 词：参数设计 减振 智能弹簧 压电陶瓷 干摩擦 刚度 阻尼 

分 类 号：TH113.2[机械工程—机械设计及理论] TH113.1