Journal
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
Volume 28, Issue 17, Pages 2339-2348Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1045389X17689937
Keywords
Magnetorheological damper; one-way pumping flow; dynamic modeling; optimization; experiment
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Funding
- National Natural Science Foundation of China [51675217]
- China Automobile Industry Innovation and Development Joint Fund [U1564213]
- Natural Science Foundation of State Key Laboratory of Automotive Simulation and Control for Outstanding Young Scholar [1G416L272462]
- Natural Science Foundation of Jilin University for Outstanding Young Scholar [450060521093]
- Natural Science Foundation of Jilin Province [20140520136JH]
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Magnetorheological damper has been widely used for improving vehicle ride comfort and handling because of its excellent performance. Numerous reinforced structures of magnetorheological dampers have been developed to enhance their dynamic performance and heat dissipation. This article presents a novel pumping magnetorheological damper with one-way pumping flow and dual-stage coil-in-cylinder magnetic system. Its dynamic model and inductive time constant are derived. Then, the structural parameters are optimized via a fast multi-objective genetic algorithm. Furthermore, a pumping magnetorheological damper prototype is tested and evaluated. The proposed pumping magnetorheological damper is able to perfectly balance the dynamic performance, heat dissipation efficiency, and structure flexibility via one-way pumping flow and coil-in-cylinder magnetic system, which has a promising application prospect in semi-active suspensions.
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