传动装置中磁流变液瞬态流动特性的数值计算

郑军; 曹兴进; 张光辉

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传动装置中磁流变液瞬态流动特性的数值计算

专题研究 | 更新时间：2025-12-08

- 传动装置中磁流变液瞬态流动特性的数值计算
- Numerical Evaluation for Transient Flow Characteristics of Magneto-Rheological Fluid in the Transmission Device
- 西安交通大学学报 2007年41卷第9期页码：1053-1057
- 作者机构：
  
  重庆大学机械传动国家重点实验室,重庆,400044
- 作者简介：
- 基金信息：
  
  : 2007-01-05. 作者简介: 郑军(1980～),男,博士生;曹兴进(联系人),男,副教授. 基金项目: 国家自然科学基金资助项目(59905024);重庆大学研究创新实验项目
- DOI：
  中图分类号： TH132
- 网络首发：2007-09-10，
  
  纸质出版：2007
- 稿件说明：
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郑军, 曹兴进, 张光辉. 传动装置中磁流变液瞬态流动特性的数值计算[J]. 西安交通大学学报, 2007,41(9):1053-1057.

郑军, 曹兴进, 张光辉. Numerical Evaluation for Transient Flow Characteristics of Magneto-Rheological Fluid in the Transmission Device[J]. 2007, 41(9): 1053-1057.
郑军, 曹兴进, 张光辉. 传动装置中磁流变液瞬态流动特性的数值计算[J]. 西安交通大学学报, 2007,41(9):1053-1057. DOI：

郑军, 曹兴进, 张光辉. Numerical Evaluation for Transient Flow Characteristics of Magneto-Rheological Fluid in the Transmission Device[J]. 2007, 41(9): 1053-1057. DOI：

摘要

为了了解在突加磁场情况下磁流变液在传动装置中的瞬态流动特性

基于Bingham模型和纳维-斯托克斯方程

利用有限差分法对传动装置中磁流变液的瞬态流动特性进行了数值计算.结果表明:工作间隙产生磁场后

磁流变液剪应变率和角速度分布变化明显

临界屈服面在主动转子的内表面形成

随后其半径逐渐减小

达到稳态后保持不变; 当传动装置的流变响应时间随外加磁场增大而缩短时

滑差转速越大滞后时间越长; 在工作间隙产生磁场时

主动转子传递转矩逐渐减小

从动转子传递转矩逐渐增大

最终两者趋于一致.该结果为磁流变传动装置的设计和性能评估提供了理论依据.

Abstract

To obtain the transient flow characteristics of magneto-rheological(MR)fluids in MR transmission device as external magnetic field is applied suddenly

based on Bingham model and Navier-Stokes equation

the transient flow characteristics of MR fluids in MR transmission device are theoretically analyzed and numerically evaluated. The results indicate that once the magnetic field appears in the working gap

the distributions of shear strain rate and angular velocity of MR fluids vary obviously

the critical yield surface forms on the inner face of the driving rotor at first

its radius decreases and then maintains a constant value up to the steady state. The rheological response time of MR transmission device gets shorter when the magnetic field is enhanced and longer as the slip speed increases. The torques of driving rotor and driven rotor are not equal initially

and tend to identical finally.

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references

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Wang Jianxiao, Meng Guang. Magnetorheological fluid devices and their applications in mechanical engineering[J]. Journal of Mechanical Strength, 2001, 23(1):50-56.

Osama A, Craic A R. Magnetorheological fluid: materials, characterization, and devices[J]. Journal of Intelligent Material Systems and Structures, 1996, 7(2):123-130.

Zheng Jun, Cao Xingjin, Zhang Guanghui. Research on I-T relationship of MRF soft-starting transmission device[J]. Journal of Engineering Design, 2005, 12(5):284-287.

Burgess S L, Wilson S D R. Unsteady shear flow of a viscoplastic material[J]. Non-Newton Fluid Mech, 1997, 72(1): 87-100.

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