摘要
为改善磁流变悬架系统的减振效果,对某自研磁流变减振器阻尼力可控特性及其时频响应特性进行了台架试验,结合灰色预测理论与传统模糊控制,提出灰预测模糊控制策略并应用于磁流变悬架控制系统。为验证该方法的有效性,分别对天棚控制、传统模糊控制及灰预测模糊控制进行了仿真与试验对比研究。结果表明该磁流变减振器阻尼力可控效果显著且响应快、频带宽;仿真和试验均显示灰预测模糊控制对幅值的抑制效果较好,响应时间优于传统模糊控制但不及天棚控制。
For the purpose of improving vibration absorption effect of a magneto-rheological（MR） suspension sysytem,the bench tests of response characteristic both in time and frequency domain were done for a special magneto-rheological（MR） damper.Then,a grey predictive-fuzzy controller（GPFC）was proposed by integrating the grey predictive theory and the traditional fuzzy control（TFC） algorithm and was applied to the control system of the MR suspension.In order to verify the effectiveness of the proposed control strategy,the comparative study on simultions and bentch tests of sky-hook control,TFC and GPFC presented.The results showed that the response speed of the MR damper is fast,the response frequency band is wide;both the simulation and test results indicate the better performance of the GPFC,its response time is faster than that of TFC,but slower than that of sky-hook control.
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第5期63-68,共6页
Journal of Vibration and Shock
基金
国家自然科学基金(51005256)
重庆市自然科学基金资助项目(CSTC
2010BB0042)
中央高校基本科研业务费资助(CDJRC10280001)
关键词
磁流变
悬架
灰预测
模糊控制
仿真与试验
magneto-rheological
suspension
grey prediction
fuzzy control
simulation and test
