摘要
在汽车座椅的优化设计中,为建立较为准确的磁流变减振器力学模型,实现座椅半主动控制系统的优化,在分析传统的磁流变减振器力学模型的基础上,提出了一种改进的磁流变减振器多项式模型;试验测试了自制磁流变减振器的示功特性和速度特性,进行了磁流变减振器力学模型参数识别,并对试验结果和仿真结果进行了对比;设计了座椅悬架天棚控制策略,开展了基于磁流变减振器的座椅半主动控制试验验证。结果表明,所建立的磁流变减振器多项式模型是正确的,减振效果明显。
To establish the accurate mechanical model of magneto-rheological damper is the key to realize seat semi-active control. Based on the analysis of traditional polynomial model of magneto-rheological damper, an improved polynomial mechanical model of magneto-rheological damper was put forward. The charts of damping-displacement characteristic and damping-velocity characteristic were obtained during the experiment. The model param- eters was identified based on test data. At the same time, the test results and simulation results were compared. The sky-hook control strategy for seat suspension was designed and sky-hook control tests of the seat with magneto-rheo- logical damper were carried out. The results show that the established polynomial model of magneto-rheological damper is correct and the magneto-rheological damper obviously reduces vibration.
出处
《计算机仿真》
CSCD
北大核心
2016年第1期194-198,共5页
Computer Simulation
基金
国家自然科学基金(51275403)
陕西省自然科学基金(2014JM7271)
关键词
座椅
磁流变减振器
试验建模
半主动控制
天棚控制
Seat
Magneto-rheological damper
Test modeling
Semi-active control
Sky-hook control
