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다구찌 기법을 이용한 FCM 가스켓의 강건 설계에 관한 연구
정진은(Jin Eun Chung),안중규(Juengkyu Ahn),양정모(Jeongmo Yang) 한국자동차공학회 2013 한국자동차공학회 지부 학술대회 논문집 Vol.2013 No.5-2
This paper deals with the robust design of the non-asbestos FCM gasket. In order to this, the measurement of the shear based on the design of experiment using the orthogonal table was carried out and the control factors for shear stress using the larger-the-better SN ratios with the Taguchi method were evaluated. In addition, the analysis of variance for SN ratios was conducted. The temperature, pressure, duration time and humidity were selected as the control factors. The orthogonal table L?(3⁴) was made of 3 levels for each factor and the measurement of shear stress was accomplished on the base of the table. Delta statistics of time is the highest value 0.93 and therefore the time affect the largest effect on the shear stress of gasket. Also from the analysis, the shear stress shows maximum at the duration time 80 sec, temperature 200℃, pressure 90kgf/cm2, humidity 60%RH. P values of duration time and temperature as a results of the analysis of variance are 0.037 and 0.098. Therefore the analysis has significant each with 95% and 90% confidence level.
실차 엔진에 적용 가능한 이중 질량 플라이휠의 변위 측정 시스템 개발
이호현(Hohyun Lee),고상근(S. Ken Kauh) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The Dual Mass Flywheel (DMF) is used in many modem vehicles to decrease noise and absorb vibration on the move. By the two decoupled masses of the flywheel are linked by spring dampers, torsional vibration can be reduced. The measurement of angular displacement of DMF is very important to analysis power transmission characteristics between the engine and the transmission. To get the real time displacement data of DMF, sensor based on the principle of LVDT is mounted on rotating flywheel. The power for circuit is supplied using a method of electromagnetic induction. In addition Bluetooth technology is used for wireless data transmission.