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基于流动模式的汽车双筒式磁流变减振器设计与试验研究
引用本文:贾永枢,周孔亢,徐兴. 基于流动模式的汽车双筒式磁流变减振器设计与试验研究[J]. 机械工程学报, 2012, 48(10): 103-108
作者姓名:贾永枢  周孔亢  徐兴
作者单位:1. 浙江工贸职业技术学院 温州325003
2. 江苏大学汽车与交通工程学院 镇江 212013
3. 江苏大学汽车工程研究院 镇江 212013
基金项目:国家自然科学基金,温州市科技计划
摘    要:提出一种基于流动模式的汽车单出杆、双筒式磁流变减振器的结构与工作原理,该减振器采用已有汽车悬架双筒式普通液压减振器的设计标准制造,对现有双筒式减振器具有很强工艺继承性。根据Bingham流体模型建立双筒式磁流变减振器阻尼力数学模型,并提出该减振器的磁路设计方法;针对磁路的非轴对称特性,建立磁路三维有限元仿真模型,结合北京现代某款汽车前悬架减振器的技术要求和磁流变液流变特性,进行三维静态磁场分析,确定活塞磁路的主要参数。制作汽车双筒式磁流变减振器,并对此进行台架特性试验;通过试验与理论计算对比,结果表明理论计算数据与试验数据较吻合,所提出的双筒式磁流变减振器设计方法是可行的,对汽车双筒式磁流变减振器的设计使用具有指导意义。

关 键 词:流动模式  磁流变减振器  双筒式  阻尼力

Design and Experimental Research on the Vehicle Twin-tube Magnetorheological Fluids Damper Based on Pressure Driven Flow Mode
JIA Yongshu , ZHOU Kongkang , XU Xing. Design and Experimental Research on the Vehicle Twin-tube Magnetorheological Fluids Damper Based on Pressure Driven Flow Mode[J]. Chinese Journal of Mechanical Engineering, 2012, 48(10): 103-108
Authors:JIA Yongshu    ZHOU Kongkang    XU Xing
Affiliation:1.Zhejiang Industry & Trade Vocational College,Wenzhou 325003; 2.School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013; 3.Automotive Engineering Research Institute,Jiangsu University,Zhenjiang 212013)
Abstract:The structure and working principle of a vehicle single-rod and twin-tube magnetorheological fluids(MRF) damper based on pressure driven flow mode is introduced.The MRF damper is designed with the existing manufacturing standards of ordinary hydraulic damper,which has a strong succession technology on the existing vehicle suspension damper.The mathematical model of damping force is established using non-Newtonian fluid model and Bingham plastic model,and magnetic circuit design method of the MRF damper is proposed.Based on the non-axisymmetric magnetic circuit of piston,a magnetic circuit three-dimensional finite element simulation model is established with the ANSYS software,and the magnetic circuit parameters are determined according to the technical requirements of a front Beijing Hyundai vehicle damper and the MRF rheological properties.The twin-tube MRF damper is designed and produced,and the experiment is done to test the damper characteristics.The simulation results are compared with testing results.The results show that they agree well,and the proposed design of twin-tube MRF damper is proved to be right,which is a guide for design and use.
Keywords:Pressure driven flow mode Magnetorheological fluids damper Twin tube Damping force
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