Strong Coupling Analysis of Magnetic Fluid Thermal Field of Corrugated Magnetorheological Brake

Dongya Tao; Zhigang Fang

doi:10.16578/j.issn.1004.2539.2020.01.014

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Strong Coupling Analysis of Magnetic Fluid Thermal Field of Corrugated Magnetorheological Brake

Design· Calculation | 更新时间：2022-11-10

- Strong Coupling Analysis of Magnetic Fluid Thermal Field of Corrugated Magnetorheological Brake
- Journal of Mechanical Transmission Vol. 44, Issue 1, Pages: 84-89(2020)
- 作者机构：
  
  1.台州职业技术学院机电工程学院，浙江台州 312000
  2.浙江理工大学理学院，浙江杭州 310018
  3.台州学院机械学院，浙江台州 312000
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2020.01.014
  CLC：
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陶东娅,方志刚.波纹状磁流变制动器磁流热场强耦合分析[J].机械传动,2020,44(01):84-89.

Tao Dongya,Fang Zhigang.Strong Coupling Analysis of Magnetic Fluid Thermal Field of Corrugated Magnetorheological Brake[J].Journal of Mechanical Transmission,2020,44(01):84-89.
陶东娅,方志刚.波纹状磁流变制动器磁流热场强耦合分析[J].机械传动,2020,44(01):84-89. DOI： 10.16578/j.issn.1004.2539.2020.01.014.

Tao Dongya,Fang Zhigang.Strong Coupling Analysis of Magnetic Fluid Thermal Field of Corrugated Magnetorheological Brake[J].Journal of Mechanical Transmission,2020,44(01):84-89. DOI： 10.16578/j.issn.1004.2539.2020.01.014.

摘要

为研究应用于汽车的波纹状磁流变制动器在磁流热场强耦合作用下的温度特性，建立了磁流变制动器的磁流耦合和热流耦合有限元分析模型，采用直接序贯耦合法得到磁流变制动器的磁场分布和稳态非制动工况、正常制动工况、紧急制动工况、连续间歇制动工况下的温度分布及其变化规律。研究结果表明，在稳态非制动工况，磁流变制动器温度分布近乎均匀，而在正常制动、紧急制动工况和连续间歇制动工况下的最高温度分别为92.4 ℃、111.2 ℃、80.4 ℃，制动间隙内的温度均呈现先上升后下降的变化趋势；随着励磁电流的增加，磁流变制动装置在制停过程中的最高温度也逐渐上升，但其上升幅度越来越小。研究结果可为磁流变制动器的设计和应用提供参考依据。

Abstract

In order to study the temperature characteristics of a corrugated Magnetorheological Brake(MRB) applied to the vehicle under the strong coupling of magnetic fluid thermal field， the finite element analysis models of magnetic fluid coupling and thermal fluid coupling are established. The magnetic field distribution， temperature distribution under steady non-braking condition， and the transient temperature distribution under normal braking， emergency braking and frequency interval braking conditions are obtained by using direct sequential coupling method. The results show that the temperature distribution of corrugated MRB is nearly uniform under steady non-braking condition， while the maximum temperature under normal braking， emergency braking and frequency interval braking conditions are 92.4 ℃， 111.2 ℃ and 80.4℃ respectively， the temperature in the brake clearance shows a tendency of rising first and then falling. With the increase of excitation current， the maximum temperature of MRB device gradually increases in the process of breaking， but， its rising range is smaller and smaller. The results can provide reference for the design and application of MRB.

关键词

磁流变制动器温度特性磁流耦合热流耦合

Keywords

Magnetorheological brakeTemperature characteristicMagnetic fluid couplingThermal fluid coupling

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