农业机械学报2011，Vol.42Issue(2)：48-53,6.
磁流变减振器滞回特性的改进Bouc-Wen模型
Modified BOUC-Wen Model Based on Hysteretic Characteristic Experiment of Magneto-rheological Damper
摘要
Abstract
The existing mathematical model of magneto-rheological damper ( MRD) could not describe its characteristics correctly, so dynamic characteristic test on large scaled MRD was carried out. According to the test data, the dynamic nonlinear feature on elastic, damping and current saturation characteristics of MRD was analyzed with variable excitation displacement, excitation velocity and controlling current. Bouc - Wen model was not accurate enough to reflect hysteretic loop in low speed and lack hysteretic characteristics in high speed. It was also unable to express the offset phenomenon of damping force caused by pressure accumulator in single rod damper. Thus, a modified Bouc - Wen model was established. The parameters of the new model were identified with the test data, and the slope and width of hysteretic loop in velocity-force curves under high and low speed emphatically analyzed. The modified Bouc - Wen model was verified by experiment data finally.关键词
磁流变减振器/滞回特性/Bouc-Wen模型/参数建模Key words
Magneto-rheological damper/Hysteretic characteristics/Bouc - Wen model/ Parameter modeling/分类
交通运输引用本文复制引用
王维锐,吴参,陈颖,王芳..磁流变减振器滞回特性的改进Bouc-Wen模型[J].农业机械学报,2011,42(2):48-53,6.基金项目
浙江省重大科技攻关资助项目(2004C11029)和杭州电子科技大学科研基金资助项目(KYF015610027) （2004C11029）
