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Magnetic field simulation and analysis of a metal foam MR fluid damper

XU-HUI LIU1,* , XIAO-LI GAO1, HAO YU1, DUN YE1

Affiliation

  1. School of Mechanical Engineering, Sh anghai I nstitute of Technology, 201418, Shanghai, China

Abstract

In the paper, the magnetic field distribution and the influence of some parameters of a metal foam magnetorheological ( MR fluid damper, including excitation current and gap width are investigated. Metal foam (MR) fluid damper owns some advantages, such as long lifetime and low cost. In order to analyze the effect of excitation current and gap width on magnetic induction intensity, a series of simulations of dampers in different currents and gaps is conducted in the ANSYS FEM software. From the simulation results, the conclusion indicate s that excitati on current and gap width are two key factors for the damper, with the increasing of excitation current, magnetic induction intensity in the gap increases, once the current is above 1.5A, the increment of magnetic induction intensity is not obvious longer, and the magnetic induction intensity increases with the decreasing of gap width..

Keywords

Metal foam, Magnetorheological fluid damper, Magnetic field simulation, Magnetic induction intensity.

Citation

XU-HUI LIU, XIAO-LI GAO, HAO YU, DUN YE, Magnetic field simulation and analysis of a metal foam MR fluid damper, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.290-293 (2015).

Submitted at: June 13, 2014

Accepted at: Jan. 21, 2015