金属橡胶减振器组合刚度特性研究  

Research on combined stiffness characteristic of metal rubber damper

作　　者：李中郢[1] 卢正人[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2005年第10期1327-1329,1362,共4页Journal of Harbin Institute of Technology

基　　金：哈尔滨工业大学校基金资助项目(HIT.2001.70)

摘　　要：金属橡胶减振器(M etal Rubber Damper简称MRD)是一种具有干摩擦的非线性减振器,但由于单一MRD刚度曲线线性度差,若将刚度特性不同的金属橡胶元件加以组合匹配,刚度特性线性区间范围将大大增加.详细叙述了用能量法对建模的非线性方程进行线性化,并且利用总体最小二乘法对此类方程进行参数辨识.结果表明,不同的金属橡胶减振阻尼元件的互相组合大大增加了其刚度特性的线性范围.Metal rubber damper is a nonlinear damper which has dry friction characteristic. A single MRD has bad linear stiffness characteristic. If MRDs of different stiffness characteristic are combined, the linear ranges will be increased. A scheme utilizing is presented that energy method linearizes nonlinear equations which are acquired by modeling and the equations are solved by the total least squares. The result shows the linear ranges of the stiffness characteristics are increased highly when MRDs are combined.

关 键 词：金属橡胶 刚度 能量法 总体最小二乘法 

分 类 号：TB123[理学—工程力学]