期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 64, 期 1, 页码 22-31出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2012.08.006
关键词
Magnetorheological fluid; MR damper; MR fluid; Finite element; Computational fluid dynamics CFD
资金
- TUBITAK [104M157]
Magnetorheological (MR) dampers can be controlled effectively by a magnetic field and with minimum power requirement. Under the magnetic field. MR fluid behaves as a non-Newtonian fluid with controllable viscosity. Damper performance can be enhanced by getting to know better the non-Newtonian flow in the annular gap of piston head. In the study the non-Newtonian flow in the annular gap is investigated by a quasi-static analysis that enables to calculate plug thickness and damper force. Also CFD analysis of the MR damper is performed by using transient and deformed mesh to be able to simulate moving of piston head in the damper considering non-Newtonian regions. Results of the analyses have been compared to experimental data obtained from MR dampers manufactured for the study. Good agreement has been observed between experimental and analyses data. In addition, effects of stroke and velocity on the damper performance are examined in the study. (c) 2012 Elsevier Ltd. All rights reserved.
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