摘要
在分析磁流变阻尼器Bouc-Wen立方修正模型及高速机车振动特点基础上,提出应用磁流变阻尼器进行机车振动控制,建立了基于磁流变阻尼器的17自由度高速机车横向半主动模型。针对模型的非线性特征,在简单模糊控制规则基础上,提出根据控制效果实时修正磁流变阻尼器输入参数的自适应模糊控制策略。在MatLab环境中进行仿真,结果表明:与被动控制、简单模糊控制相比,自适应模糊控制能有效衰减机车横向振动;在低频阶段,尤其是对乘坐舒适度影响大的5Hz～8Hz范围内能显著提高高速机车的平稳性和乘坐舒适性。
Based on analyzing the vibration characteristic of a high-speed locomotive and the Bouc-Wen model of magnetorheological(MR)damper,a vibration control method based on MR damper was put forward,and a seventeen-de-gree-of-freedom semi-active lateral vibration control model of a high-speed locomotive with MR damper was established.Taking the nonlinearity of the model into account,a fuzzy control rule and a self-adapt control strategy to modify the input parameter of MR damper in realtime according to control effect was put forward.The simulation of the model was studied using MatLab.The simulation results showed that compared with the passive control and simply fuzzy control,the self-a-dapt fuzzy semi-active control strategy with MR damper could attenuate the vibration of the 1ocomotive effectively and im-prove its ride comfort and stability obviously,especially in the range of 5～8Hz being sensitive to the human body.
出处
《振动与冲击》
EI
CSCD
北大核心
2009年第7期126-130,共5页
Journal of Vibration and Shock
基金
国家杰出青年基金项目资助(50625518)
关键词
高速机车
横向半主动悬挂
磁流变阻尼器
自适应模糊控制
high-speed locomotive
semi-active lateral suspension
magnetorheological(MR)damper
self-adapt fuzzy control
