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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제10권 제1호
발행연도
2002.1
수록면
244 - 254 (11page)

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초록· 키워드

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To enhance the acceleration performance and fuel consumption rate of a vehicle, the torque converter is modified or newly-developed with reliable analysis model. Up to recently, the one dimensional performance model has been used for the analysis and design of torque converter. The model is described with constant parameters based on the concept of mean flow path. When it is used in practice, some experiential correction factors are needed to minimize the estimated error. These factors have poor physical meaning and cannot be applied confidently to the other specification of torque converter. In this study, the detail dynamic model of torque converter is presented to establish the physical meaning of correction factors. To verify the validity of model, performance test was carried out with various input speed and oil temperature. The effect of oil tempera-ture on the performance is analysed, and it is applied to the dynamic model. And. to obtain the internal flow pattern of torque converter, CFD(Computational Fluid Dyanmics) analysis is carried out on three-dimensional turbulent flow. Correction factors are determined from the internal flow pattern, and their variation is presented with the speed ratio of torque converter. Finally. the sensitivity of correction factors to the speed ratio is studied for the case of changing capacity factor with maintaining torque ratio.

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ABSTRACT

1.서론

2.토크 컨버터의 등가 운동량 방정식

3.토크 컨버티의 성능 분석

4.결론

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