车辆磁流变半主动座椅悬架的研制

摘要

In order to improve the riding comfortability of vehicle driver,a kind of semi-active seat suspension with magneto-rheological damper was developed.The working principle and mechanical model of magneto-rheological damper were analyzed.As a result,the dynamic model of the vehicle semi-active seat suspension was established.The fuzzy control strategies with semi-active seat suspension were designed and the simulation analysis of fuzzy control seat suspension were carried out under the sinusoidal inputs.In addition,the physical prototypes of magneto-rheological damper and test bench system were made.The damping performance tests of the magneto-rheological damper were done. Then,the bench tests of the semi-active seat suspension with magneto-rheological damper were completed.The results show that the test results are closely consistent with the simulation results and the magneto-rheological damper has good controllability.The developed semi-active seat suspension based on magneto-rheological damper obviously reduces the vehicle seat vibration.%为了提高车辆驾驶员的乘坐舒适性，研制了一种基于磁流变减振器的半主动座椅悬架。分析了磁流变减振器基本原理和力学模型，建立了车辆半主动座椅悬架动力学模型，设计了用于座椅半主动悬架的模糊控制策略，并在正弦激励输入下进行了模糊控制仿真计算，试制了座椅用磁流变减振器物理样机及试验台架系统，开展了磁流变减振器阻尼特性试验和磁流变半主动座椅悬架台架试验研究。结果表明，理论仿真和试验结果基本吻合，磁流变减振器阻尼可控性好，所研制的磁流变半主动座椅悬架明显减小了座椅振动。