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

The Korean Society of Mechanical Engineers (대한기계학회)
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Optimum Design of a Coil Spring for Improving the Performance of a Spring -Operated Mechanism

스프링 조작기의 성능 개선을 위한 코일스프링의 최적 설계

  • Lee, Dae Woo (Dept. of Mechanical Design Engineering, Pukyong Nat'l Univ.) ;
  • Sohn, Jeong Hyun (Dept. of Mechanical Design Engineering, Pukyong Nat'l Univ.) ;
  • Yoo, Wan Suk (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • 이대우 (부경대학교 기계설계공학과) ;
  • 손정현 (부경대학교 기계설계공학과) ;
  • 유완석 (부산대학교 기계공학부)
  • Received : 2015.07.28
  • Accepted : 2016.01.18
  • Published : 2016.03.01
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Abstract

In this study, a release test bed is designed to evaluate the dynamic behaviors of a coil spring. From the release tests, the dynamic behaviors of a coil spring are analyzed. A lumped parameter spring model was established for numerical simulation of a spring. The design variables of a coil spring are optimized by using the design of experiments approach. Two-level factorial designs are used for the design optimization, and the primary effects of the design variables are analyzed. Based on the results of the interaction analysis and design sensitivity analysis, the level of the design variables is rearranged. Finally, the mixed-level factorial design is used for the optimum design process. According to the optimum design of the opening spring, the dynamic performance of the spring-operated mechanism increases by 2.90.

본 연구에서는 코일스프링의 동적 거동 분석을 위해 스프링 릴리즈 시험기를 설계하고 시험을 실시하였다. 시뮬레이션을 위해 집중 매개변수 스프링모델을 개발하였다. 실험계획법을 이용하여 코일스프링의 설계변수들을 최적화하였다. 2수준의 요인배치법을 사용하여 설계변수들의 민감도와 교호작용을 분석하였다. 민감도와 교호작용 분석결과를 통해 설계변수의 수준을 재배열하였다. 혼합수준 요인배치법을 이용하여 설계변수를 최적화 하였다. 최적설계 결과에 따르면, 스프링 조작기의 성능이 2.90 % 개선되었다.

Keywords

References

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