磁流变阻尼器抗爆隔震性能的数值模拟  

NUMERICAL SIMULATION ON SHOCK ISOLATION OF BLAST-RESISTANT STRUCTURE WITH MAGNETORHEOLOGICAL DAMPERS

作　　者：相恒波[1] 方秦[1] 王玮[2] 龚自明[1] 

机构地区：[1]解放军理工大学 [2]73111部队司令部通信处

出　　处：《振动与冲击》2007年第11期106-111,共6页Journal of Vibration and Shock

基　　金：国家杰出青年科学基金资助项目(50525825);国家自然科学基金重点资助项目(50638030)

摘　　要：磁流变阻尼器隔震系统具有隔震效率高、能耗低、可控性好等优点,但针对抗爆结构隔震的研究还很少。本文针对抗爆结构的隔震特点,提出了阶跃电流控制方法,采用改进的Bouc-Wen模型和Matlab Simulink模拟软件,对磁流变阻尼器的抗爆隔震性能进行了模拟分析。结果表明,磁流变阻尼器可以有效改善抗爆结构的位移、加速度和VDV值的响应,与模糊控制方法相比,阶跃电流控制方法更适合于抗爆结构的隔震控制。Little attentions have been paid to the application of shock isolation system with magnetorheological damper (MRD) in blast-resistant structures. The step current control method is proposed based on the characteristics of shock isolation of blast-resistant structures with MRD, and the modified Bouc-Wen Model and Matlab Simulink software are adopted to analyze the shock isolation performance of the structures with MRD. The analytical results show that the displacement, acceleration and VDV of the structure can be reduced effectively by MRD, and the proposed step current control method is more suitable for the application in blast-resistant structures as compared with the fuzzy control method.

关 键 词：磁流变阻尼器 抗爆结构 隔震 阶跃电流控制 数值模拟 

分 类 号：O383[理学—流体力学]