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Gap related magnetic characteristics of magnetorheological dampers with porous metal foam

XING YAN YAO1,* , ZHIZHAO PENG2

Affiliation

  1. Chongqing Engineering Laboratory for Detection Control and Integrated System, Chongqing Technology and Business University, Chongqing 400067, China
  2. Army Academy of Armored Forces, Fengtai, Beijing 100072, China

Abstract

Magnetorheological (MR) damper s are used to reduc e and control vibration s . An approach that includes p orous metal foam to store the magnetorheological fluid has been proposed to increase the lifespan of MR dampers and save cost . However, the magnetic field in the shear gap is a key factor which determines the damper’s performance. And the magnetic characters inside the shear gap is difficult to measurement by experiment s . This paper investigates the magnetic characteri stics of porous metal foam MR damper s using magneto static model in Ansys , and the field distribution inside the shear gap was obtained . The simulation results show that the magnetic flux density in the shear gap increases by adding porous metal foam to the inner wall of the cylinder The magnetic flux density increases with current increment while decreases as the gap distance increased.

Keywords

: Magnetorheological (MR) dampers, MR fluid, P orous metal foam, M agnetic characteristic.

Citation

XING YAN YAO, ZHIZHAO PENG, Gap related magnetic characteristics of magnetorheological dampers with porous metal foam, Optoelectronics and Advanced Materials - Rapid Communications, 12, 11-12, November-December 2018, pp.759-763 (2018).

Submitted at: Feb. 19, 2018

Accepted at: Nov. 29, 2018