多级径向流动模式磁流变液减振器磁路设计

Magnetic Circuit Design for Magneto-rheological Fluid Shock Absorber Based on Multistage Radial Flow Model

针对传统磁流变液减振器输出阻尼力小、磁场利用率不高、能耗较大的缺点,依据轨道车辆抗蛇形振动减振器的技术要求,提出了一种基于多级径向流动模式的磁流变液减振器。阐述了磁流变液减振器的工作原理,完成了磁流变液减振器的磁路设计。根据确定的磁路结构参数制造出磁流变液减振器,在专用的轨道车辆减振器试验台上对减振器进行了测试。测试结果验证了对多级径向流动模式磁流变液减振器理想性能的预测,表明磁路设计是有效的。

Aiming at the characteristics of traditional magneto-rheological fluid shock absorber such as low damping force, low utilization of magnetic field, high energy consumption, a kind of multistage radial flow model magneto-theological fluid shock absorber was presented based on technical requirements of railway vehicle anti-yaw shock absorber. This paper described the working principle of magneto-rheological fluid shock absorber, accomplished magnetic circuit design of magneto-rheological fluid shock absorber according to principle of magnetic circuit design. Test of damper was carried out on the special test-bed of railway vehicle shock absorber, and the test results verified the prediction of ideal performance of multistage radial flow model magneto-rheological fluid shock absorber, showing that the magnetic circuit design is effective.