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논문 기본 정보

자료유형
학술대회자료
저자정보
강병익 (한국가스안전공사) 길성희 (한국가스안전공사) 조영도 (한국가스안전공사)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2017년도 학술대회
발행연도
2017.11
수록면
2,016 - 2,021 (6page)

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초록· 키워드

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The cylinder block of the main pump is a mechanical part that produces pressure through relative motion with piston. At this moment, the relative movement between the cylinder block and the piston may cause a seizure, and this seizure problem can be solved by pressing a bushing into the cylinder block. However, if the rates of shrink fit are insufficient, the copper bushing will be detached from the cylinder block and rates of shrink fit are excessive, a residual stress higher than yield stress of material will be generated and adversely affect the durability of bushing and the cylinder block. So, choosing rates of shrink fit is important.
Therefore, in this study, a clear and quantitative rates of shrink fit is presented to solve the above-mentioned-problems, and to correct the durability assessment process of mechanical parts where residual stress occurs is performed. Through this study, analytical technique which can predict the residual stress clearly according to the rates of shrink fit was obtained and quantitative residual stress according to the rates of shrink fit was confirmed. Also, based on the residual stress, quantitative durability assessment of the cylinder block in consideration of the residual stress was completed. The results of this study are expected to be based on durability assessment of mechanical part with complicated production process.

목차

Abstract
1. 서론
2. 소착방지 실린더블록 제작
3. 압입량에 따른 잔류응력의 변화
4. 잔류응력을 고려한 내구성 평가
5. 결론
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