橡胶隔振系统非线性振动参数识别与特性研究  

Nonlinear Parameter Identification and Character Research of Rubber Vibration Isolating System

作　　者：吴瑞安[1] 冯加权[1] 王玉军[1] 仲政[2] 

机构地区：[1]中国工程物理研究院总体工程研究所,绵阳621900 [2]同济大学航空与航天力学学院,上海200092

出　　处：《力学季刊》2007年第2期281-285,共5页Chinese Quarterly of Mechanics

基　　金：中国工程物理研究院面上项目基金(20050325)

摘　　要：建立单自由度非线性系统基础激励正弦扫描试验的数学模型,并针对多项式非线性阻尼与多项式非线性弹簧并联的橡胶隔振系统求解了数学模型。进而在此框架下通过正弦扫描振动试验,采用共振峰值法识别了橡胶隔振器的非线性阻尼与刚度系数,研究了不同振动量级下小型橡胶隔振器的振动特性。A single degree of freedom nonlinear sine sweep vibration test system was modelled. The model was solved for a rubber vibration isolation sysytem using a constant to equivalence nonlinear stiffness. Further more, the solution was applicated to identify the stiffness coefficient and damp coefficient of a rubber isolator in sine sweep vibration tests. The dynamic character and response were also analysized and the influence of load magnitude on the dynamic character was investigated. The results are well concord with the test phenomena.

关 键 词：非线性振动 橡胶隔振器 参数识别 正弦扫描 

分 类 号：O322[理学—一般力学与力学基础]