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原文传递 A Novel Magneto-Rheological Shock Absorber for Vibration Control

题名：	A Novel Magneto-Rheological Shock Absorber for Vibration Control
作者：	Gordaninejad, Fararmarz;
关键词：	DAMPING, SHOCK ABSORBERS, MAGNETORHEOLOGY, MATHEMATICAL MODELS, GROUND VEHICLES, SEMIACTIVE SYSTEMS, FAIL SAFE.
摘要：	This project focused on the fundamental understanding of behavior and development of novel magneto-rheological fluid (MRF) shock absorbers for mechanical systems. The aim of the study was on the feasibility of integrating controllable, semi-active, MRF shock absorbers in the suspension systems of the U.S. Army's High Mobility, Multi-purpose Wheeled Vehicle (HMMWV). New MRF damper designs were developed, fabricated and tested to meet and exceed the performance criteria set forth by the original equipment manufacture (OEM) test results. A nonlinear theoretical model was developed which can predict the performance of the MRF dampers. A unique capacity for bypass valving is included in the proposed design. A critical element of vehicle shock absorbers, bypass valving allows the shock absorber to accommodate high-force impulse loading (without failure) typical to off-highway environments. Moreover, a nonlinear fluid-mechanics based theoretical model was developed by employing Bingham plastic and Herschel-Bulkey non-Newtonian fluid models. Three dimensional electromagnetic finite element analysis was also performed for establishing a base for the MRF damper design. Extensive experiments were conducted to understand the nonlinear behavior of the new MRF dampers.
总页数：	74
报告类型：	科技报告