磁流变弹性体隔振器的非线性滞回动力学模型  

Nonlinear Hysteresis Dynamics Model of Magnetorheological Elastomer Isolator

作　　者：刘星[1] 夏品奇[1] 

机构地区：[1]南京航空航天大学直升机旋翼动力学国家级重点实验室,南京210016

出　　处：《南京航空航天大学学报》2016年第2期268-273,共6页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：根据磁流变弹性体隔振器的试验数据,利用Bouc-Wen模型,建立磁流变弹性体隔振器的非线性动力学模型。通过遗传算法对Bouc-Wen模型进行参数识别,验证了模型精度。同时提出了改进的Bingham模型,并对磁流变弹性体隔振器进行动力学建模和参数识别。比较了Bouc-Wen模型与改进的Bingham模型的优缺点。Based on the experimental data of a magnetorheological elastomer isolator, the Bouc-Wen mod- el is used to establish the nonlinear dynamics model of the magnetorheological elastomer isolator. The parameters of Bouc-Wen model are identified by using the genetic algorithm to verify the accuracy of the model. An improved Bingham model is proposed, the corresponding dynamics model of the magneto- rheological elastormer isolator is established, and its parameters are identified. The advantages and dis- advantages of the two models are compared with each other.

关 键 词：磁流变弹性体 非线性 BOUC-WEN模型 改进的Bingham模型 参数辨识 

分 类 号：V211.12[航空宇航科学与技术—航空宇航推进理论与工程]