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김효석(H.S.Kim),이종원(C.W.Lee),이용욱(Y.W.Lee) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
In recent years, the tendency of active control of noise and vibration increases in the design of new cars in automibile industry. In this paper, a prototype active engine mount(AEM) with an electro-dynamic actuator is proposed to enhance the practicality. The AEM is designed based on hydraulic mount, because it can act as a passive hydraulic engine mount, in case when it is out of order. In the process of AEM design, the dynamic model and design method of the electro-dynamic actuator are suggested. The AEM is mathematically modeled, and the model is experimentally verified. Also, the engine displacement feddback control scheme is adopted to verify the effectiveness of the AEM in reduction of the transmitted force.<br/>
조향 및 현가 장치의 설계 변수가 수방안정성에 미치는 영향
류준성(J.S Ryu),김상락(S.R Kim),김효석(H.S Kim) 한국자동차공학회 2003 한국자동차공학회 Symposium Vol.2003 No.9
Among the handling characteristics of the vehicle, Hand-Free Stability is the stability evaluation item in case a driver put a certain steering input during driving then he release the steering wheel. For unstable vehicle, we often test repeatedly with many steering and suspension test sample to improve that tendency. Therefore, in this paper we proposed the CAE method to investigate easily the influence of the steering and suspension design parameters on the Hand-Free Stability. And with the prototype vehicle test. we confirmed the validity of the CAE results