一种馈能式磁流变减振器特性研究

Characteristics research on an energy regenerative magnetorheological damper

为了实现车辆悬架的减振控制及振动能量回收,提出了一种基于齿轮齿条结构的馈能式磁流变减振器结构。建立了1/4车二自由度悬架力学模型和减振器数学模型,试制了减振器物理样机,进行了减振器阻尼特性试验;利用MATLAB/Simulink软件对磁流变减振器的馈能特性进行了仿真分析,并进行了减振器馈能特性试验。研究结果表明:该磁流变减振器阻尼力可控性好,能够衰减车辆振动,可实现振动能量回收,馈能效率为15.7%。

To realize vibration absorption control and vibration energy recovery of the vehicle suspension,an energy regenerative magnetorheological damper based on the gear rack structure was proposed.The suspension mechanics model of 1/4 vehicle with 2 degrees of freedom and the mathematical model of the damper were established.The physical prototype of the damper was trialproduced,and the damping characteristics of the damper were tested.The energy regenerative characteristics of the magnetorheological damper were simulated by using MATLAB/Simulink software,and corresponding physical experiments were conducted.The results show that the damping force of the magnetorheological damper can be well controlled to attenuate the vehicle vibration,and the vibration energy can be regenerated with the energy regenerative efficiency of 15.7%.