한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제6권4호
  • /
  • Pages.129-140
  • /
  • 1998
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

Hermite 곡선을 이용한 자동차 엔진 캠 형상의 최적 설계에 관한 연구

A Study on the Optimal Design of Automotive Cam Profiles using Hermite Curve

  • 김도중 (정회원, 울산대학교 자동차공학과) ;
  • 김원현 (한국중공업(주))
  • 발행 : 1998.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A numerical method is proposed to optimize automotive cam profiles. An acceleration curve of a cam follower motion is described by Hermite spline curves. Because of the intrinsic characteristics of the Hermite curve, it is possible to design an acceleration curve with arbitrary shape. Design variables in the optimization problem are location of control points which define the acceleration curve. Objective function includes dynamic performances as well as kinematic properties of a valve train. Similar optimization procedure was also performed using Polydyne cam profile synthesis method. Optimized profiles using the Hermite curve are proved to be superior to those using the Polydyne method.

키워드

참고문헌

  1. Mechanics and Design of Cam Mechanisms F. Y. Chen
  2. IMechE C427/107 The History and Mathematical Development of Cam Profile Design in Rover P. Hollingworth;R. A. Hodges
  3. Machine Design Polydyne cam design Ⅰ,Ⅱ,Ⅲ D. A. Stoddart
  4. Computer Aided Design v.15 no.3 Synthesis of plane curves with prescribed local geometric properties using periodic splines J.Angeles
  5. IMechE Proceedings v.199 no.C3 An evaluation of spline functions for use in cam design B. L. MacCarthy;M. D. Burns
  6. J. Mechanical Design v.115 Cam motion synthesis using cubic splines K. Yoon
  7. 한국자동차공학회 논문집 v.3 no.5 Hermite곡선을 이용한 자동차 엔진 캠 형상 합성법에 관한 연구 김도중;이종원
  8. ASME J. of Mechanism, Transmissions, and Automation in Design v.111 Shape Optimization of Cam Profiles Using a B-Spline Representation E. Sandgren;R. L. West
  9. 대한 기계 학회 논문집 v.14 no.3 캠-밸브 기구에서 접촉력 최소화를 위한 캠과 종동자 형상 최적 합성 김성훈;전혁수;박윤식
  10. Optimization of Cam Mechanisms J. Angeles;C. S. Lopez-Cajun
  11. SAE Technical paper 932004 Advanced Optimization Techniques in Valve Train Design R. Ernst;A. R. Schamel;J. Meyer
  12. ASME J. of Mechanical Design The Design of High-Speed Dwell-Rise-Dwell Cams Using Linear Quadratic Optimal Control Theory B. C. Fabian;R. W. Longman;F. Freundenstein
  13. 대한기계학회논문집 v.19 no.5 Cubic Spline을 사용한 최적 캠곡선의 합성 손태영;양민양
  14. Introduction to Optimization Theory B. S. Gottfried;J. Weisman
  15. Math/Library: FORTRAN Subroutines for Mathematical Applications IMSL
  16. Numerical Initial Value Problem in Ordinary Differential Equations C. W. Gear