Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Contact Fatigue Life for CRG System

CRG 시스템의 접촉 피로수명

  • Nam, Hyoung-Chul (Dept. of Mechanical Design and Manufacturing Engineering, Changwon Nat'l Univ.) ;
  • Kim, Chang-Hyun (Dept. of Mechanical Design and Manufacturing Engineering, Changwon Nat'l Univ.) ;
  • Kwon, Soon-Man (Dept. of Mechanical Design and Manufacturing Engineering, Changwon Nat'l Univ.)
  • 남형철 (창원대학교 기계설계공학과) ;
  • 김창현 (창원대학교 기계설계공학과) ;
  • 권순만 (창원대학교 기계설계공학과)
  • Received : 2012.07.04
  • Accepted : 2012.07.19
  • Published : 2012.11.01
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Abstract

A cam ring gear (CRG) system based on a hypotrochoid curve consists of a pinion with roller teeth and its conjugated internal CRG. In this study, we investigated contact forces, contact stresses, and load stress factors to predict the surface pitting life using an exact CRG profile by introducing the profile modification coefficient. The results show that the pitting life can be extended significantly by increasing the profile modification coefficient without any other change of parameters in the CRG system.

하이포 트로코이드 기반의 CRG(Cam ring gear) 시스템은 핀 또는 롤러 치형을 가지는 기어와 공액인 캠 링기어로 구성된 내접기어 시스템이다. 본 논문에서는 CRG 시스템의 엄밀 치형설계를 바탕으로 기어 치면에서의 접촉특성을 분석하였으며 형상설계변수인 치형수정계수에 따른 기어의 내구수명을 검토하였다. 결과적으로 치형수정계수의 증가를 통해 기 설계된 CRG 시스템에 영향을 미치지 않으면서 기어의 접촉 피로수명을 향상시킬 수 있다.

Keywords

References

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