DJ-07 타이어 압력변화에 따른 1/4 MR 댐퍼 차량의 승차감 고찰

맹영준, 성민상, 최승복, 권오영, “타이어 압력변화에 따른 1/4 MR 댐퍼 차량의 승차감 고찰”, 한국소음진동공학회 논문집, 제 21권 12호, 2011.11, pp. 1159-1165, DOI : http://dx.doi.org/10.5050/KSNVE.2011.21.12.1159

Abstract

This paper presents ride comfort characteristics of a quarter-vehicle magneto-rheological(MR) suspension system with respect to different tire pressure. As a first step, controllable MR damper is designed and modeled based on both the optimized damping force levels and mechanical dimensions required for a commercial full-size passenger vehicle. Then, a quarter-vehicle suspension system consisting of sprung mass, spring, tire and the MR damper is constructed. After deriving the equations of the motion for the proposed quarter-vehicle MR suspension system, vertical tire stiffness with respect to different tire pressure is experimentally identified. The skyhook controller is then implemented for the realization of the quarter-vehicle MR suspension system. Finally, the ride comfort analysis with respect to different tire pressure is undertaken in time domain. In addition, a comparative result between controlled and uncontrolled is provided by presenting vertical RMS displacement.

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