Reliability Optimization Design of Spacecraft Valve Spring

Abstract:

Firstly, methodology of valve spring’s static strength and fatigue strength reliability analysis is built up, and detailed computational formulas to derive distributions of the stress and strength are described. Secondly, to make full use of the material characteristic and consider reliability of the mechanism part, taking the spring’s mass as the objective function and based on spring’s traditional and reliability constraints, mathematic model of reliability optimization design of valve spring is established using mechanical reliability design method and mechanical optimization design method. At last, the proposed method is applied to a practical spring design example by integrating optimization tools with the optimization model. The comparison of reliability optimization design results and traditional optimization design results shows that the reliability optimization method is practical and reliable; its design results can satisfy all design requirements with smaller mass.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 851-857
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.851
• Online since: June 2012
• Authors: Ye Lin, Wei Min Cui, Bi Feng Song
• Keywords: Optimization Design, Reliability, Valve Spring

References

[1] CAO Huirong. Japan's Development of Automotive Engine Value Spring[J]．Foreign Internal Combustion Engine,1998,30 (3)：58—61．

[2] Xiushan LI，De QIN，Shumin XIA．An Elementary Introduction to the Value Spring of Gasoline Engines[J]．Motorcycle Technology,2003,16(2)：38—40．(In Chinese)

[3] Jun YU, Yongxin QUAN, Mengsheng Yu, et al. Mechanical Design[M]. Beijing：High Educational Press, 1986.

[4] Kun CAO, Guisheng SU. Optimization Design of Cylinder Helix Spring Based on MATLAB[J]．Mechanical Engineering & Automation,2007,26(5)：39—41．

[5] ZHANG Shian, HUANG Jingyuan, GUO Huixin. The Optimal Design of Cylindrical Spiral Spring[J]．Water Conservancy & Electric Power Machinery,2001,23(6)：11—12. (In Chinese)

[6] Youn B D, Choi K K. A New Response Surface Methodology for Reliability—based Design Optimizafion[J]．Computer and Sturctures，2004，82(2)：241—256．

[7] Weixin LIU．Mechanical Reliability Design[M]．Beijing：Tshinghua University Press，1996：370—375．(In Chinese)

[8] Bo WU, Mingfa LI. Mechanical Parts and System Reliability Model[M]．Bering：Chemical Industry Press，2003：222—240. (In Chinese)

[9] Yinghui ZHANG, Huihang LIU, Decheng WANG. The Spring Manual[M]．Bering：Mechanical Industry Press,1997：237 —246．(In Chinese)

[10] Weixin LIU．Mechanical Optimal Design[M]．Bering：Tshinghua University Press，1996：305—309．(In Chinese)