Earticle

초록

영어

V-type coupling, which is often applied to wastegate-turbochargers(WGT), is a mechanical fastener. Its radial forces generated from the bolt pretension load colse contact with each other to the axial direction for turbine housing and center housing rotating assembly(CHRA). In addition, the torsional stiffness between two bodies should be sufficiently secured to minimize the linkage angle change from the EWGA to the valve spindle. Therefore, in this study, the torsional stiffnesses according to the effects of positioning pins and friction coefficient, and the bolt pretension loads were calculated for V-coupling turbocharger. As a result, it can be seen that the torsional stiffness of the coupling according to the number of position pins is very small. And, when the friction coefficient and the axial force of the bolt are large, the torsional stiffness is greatly increased, and gradually decreasing when the bolt load of the coupling is about 6,000 N or more.

목차

ABSTRACT
1. 서론
2. 커플링 체결계의 비틀림 강성
2.1 커플링 체결계 구조
2.2 유한요소 모델 구성
3. 유한요소 해석
3.1 커플링 체결계의 비틀림 강성
4. 결론
References

키워드

터보차저 V형 커플링 비틀림 강성 웨이스트게이트 터보차저 유한요소해석 Turbocharger V-Type Coupling Torsional Stiffness Wastegate Turbocharger WGT Finite Element Analysis

저자

• 김형준 [ Hyung-Jun Kim | Assistant Engineer, Keyyang Precision R&D Center ]
• 이영훈 [ Young-Hoon Lee | Assistant Engineer, Keyyang Precision R&D Center ]
• 최복록 [ Bok-Lok Choi | Member, Professor, Gangneung-Wonju National Univeristy School of Mechanical & Automotive Engineering ] Corresponding Author

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