4.4 Article

Damping characteristics of a magneto-rheological damper with dual independent controllable ducts

出版社

SAGE PUBLICATIONS LTD
DOI: 10.1177/1045389X211018851

关键词

Magneto-rheological; damper; valve; dual independent controllable ducts; flow state

资金

  1. National Natural Science Foundation of People's Republic of China [51675063]
  2. Chongqing Postdoctoral Research Project Funding [XmT2019006]
  3. Fundamental Research Funds for the Central Universities [2018CDGFJX0023]

向作者/读者索取更多资源

This paper introduces the damping characteristics of a linear magneto-rheological (MR) damper with dual controllable ducts, showcasing its capabilities through numerical and experimental analysis. The design of dual independent controllable ducts helps reduce the influence of viscous damping force and improve dynamic range. By controlling the current of two independent coils, the pressure drop of the MR valve can be adjusted to control the working states and damping force of the MR damper.
This paper presents the damping characteristics of a linear magneto-rheological (MR) damper with dual controllable ducts based on numerical and experimental analysis. The novel MR damper consisting of a dual-rod cylinder system and a MR valve is used to reduce the influences of viscous damping force and improve dynamic range. Driven by the dual-rod cylinder system, MR fluid flows in the MR valve. The pressure drop of the MR valve with dual independent controllable ducts can be controlled by tuning the current of two independent coils. Based on the mathematical model and the finite element method, the damping characteristics of the MR damper is simulated. A prototype is designed and tested on MTS machine to evaluate its damping characteristics. The results show that the working states and damping force of the MR damper can be controlled by the two independent coils.

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