摘要
磁流变减振器是一种典型的非线性系统,具有高度的非线性、时滞性和不确定性,其非线性特性是影响其工作的重要因素。本文在Bingham模型上,利用改良的谐波平衡法对非线性磁流变减振系统在简谐基础激励下的动态响应进行求解,并利用MATLAB软件对减振器在不同条件下的特性作了分析,结果显示磁流变减振系统的传递率在阻尼比<1的情况下出现多值性的现象。针对此情况,提出了减振器设计时应注意的问题。
Magnetorheological damper is a typical nonlinear device; it has the characters such as nonlinearity, time-delaying and uncertainty. Nonlinearity of MR damper is of great influence on its behaviors. In this paper, the dynamic responses of nonlinear MR damper under base harmonic excitation is obtained; Characters of MR damper is analyzed using MATLAB software. It is shown that a multi-value performance appears in transmissibility when the damping ration is below 1. Some advices are suggested in design of MR damper.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2006年第6期986-988,共3页
Journal of Functional Materials
基金
国防基础科研资助项目(K1704060327
A262060247)
关键词
磁流变减振器
非线性
基础激励
magnetorheological damper
nonlinear performance
base excitation