摘要
在对磁流变阻尼器的输出特性进行实验测试和理论分析的基础上,建立了以磁流变阻尼器作为执行器件的1/4车半主动悬架模型,设计了一种双输入单输出的模糊逻辑控制器,并进行了仿真研究,在时间和频率域中对磁流变阻尼器振动响应进行评价,结果表明:与被动悬架相比,该系统有效地抑制了车身在人体敏感频率段的振动,提高了乘坐舒适性。
The application of a MR fluid damper for the vibration control of a quarter-car suspension system is proposed and studied. A set of MR dampers is designed,fabricated ,and characterized. The mathematical model of this MR fluid damper compared with experimental results for a prototype damper through finding suitable model parameters. A fuzzy logic controller is also developed. The completed system is simulated. Two kinds of excitations,including bump and random road profile, are inputted in order to investigate the performance of suspension system. The vibration responses are evaluated in both time and frequency domains. Compared to the passive system, the vertical acceleration of the sprung mass is significantly reduced for the system with a controlled MR fluid damper.
出处
《传感器与微系统》
CSCD
北大核心
2007年第12期34-36,40,共4页
Transducer and Microsystem Technologies
基金
国家自然科学重点基金资助项目(60404014
60574074)
关键词
磁流变阻尼器
模糊逻辑控制器
振动控制
汽车悬架
仿真
magneto-rhedogical （MR） fluid damper
fuzzy logic controller
vibration control
vehicle suspension
simulation
