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연료레일의 응력 저감을 위한 최적 설계

원문정보

Optimal Design of Fuel Rail for Stress Reduction

신준

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초록

영어

This paper is one of basic studies for development of fuel rail to secure strength of GDI system. The fuel rail supports high pressure of 200~250bar and stores fuel while reducing pulsation during injection. Therefore, the structural characteristics of the conventional fuel rail was investigated with respect to stress and displacement. Then, the study focused on reducing stress concentration on fuel rail design to enhance the strength of each components. It was found that the maximum stress was not affected to the dimensions of taper lengths and angles of holes for fuel pipe. Also, it was found that the shape of holes for fuel pipe was key factor to reduce maximum stress, and the bridge between injector and mounting holder was effective structure to reduce the stress of injectors and displacement of the fuel rail system.

목차

ABSTRACT
1. 서론
2. 기존 연료레일이 해석
2.1 기존 연료레일의 모델링
2.2 기존 연료레일의 구조 해석
3. 형상 변화에 따른 구조 해석
3.1 테이퍼 형상에 따른 해석
3.2 라운딩 반경에 따른 해석
4. 브리지에 의한 응력 저감
4.1 인젝터 컴의 응력 해석
4.2 연료 파이프의 응력 해석
5. 결론
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References

저자정보

  • 신준 Joon Shin. Member, Gangneung-wonju National University, Mechanical & Biomedical Eng.

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