Design & Manufacturing

  • 제14권4호
  • /
  • Pages.1-10
  • /
  • 2020
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  • 2800-0323(pISSN)
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  • 2733-452X(eISSN)
한국금형공학회 (Korean Society of Die & Mold Engineering)
권호 표지

탄성중합체 시일 표면의 미세 딤플에 대한 최적설계

Optimum micro dimple configuration on the elastomer seal surface

  • 유대원 (한국폴리텍대학교 창원캠퍼스 컴퓨터응용기계설계과)
  • Yoo, Dae-Won (Department of Computer Aided Mechanical Design, Changwon Campus of Korea Polytechnic)
  • 투고 : 2020.09.01
  • 심사 : 2020.12.31
  • 발행 : 2020.12.31
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초록

The seal plays a role in preventing oil leakage when the lip and the rotating shaft come into contact with the fluid and air pressure. Recently, micro dimples or micro pockets are processed and used on the lubrication surfaces of thrust bearings, mechanical bearings, and piston rings. Compared to a smooth surface, micro dimples reduce friction and increase the life of parts. This paper analyzed various kinds of micro dimple shapes on the sealing surface, i.e. circle, rectangle, triangle, and trapezoid. For this purpose, Introduced the design of experiments to work out a micro dimple configuration, unlikely to be damaged from cracks and low in contact stress. As a result, the triangular dimple showed the best results. Optimal factors were dimple size 0.15 mm, dimple depth 0.0383 mm, dimple density 40%, and the maximum equivalent stress was 9.1455 MPa, and the maximum contact pressure was 9.6612 MPa. This paper analyzed the optimal shape of dimples by finite element analysis. As a research project, experiments and comparative analysis of micro dimple shapes are needed.

키워드

과제정보

본 연구는 지식경제부 우수 제조 기술연구센터 ATC 사업의 지원을 받아 수행한 연구 결과임. (과제번호:10035983)

참고문헌

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