Journal of Zhejiang University SCIENCE A

, Volume 7, Issue 3, pp 391–397

Reliability analysis of diesel engine crankshaft based on 2D stress strength interference model

Authors

  • Zhou Xun 周迅
    • School of Mechanical and Energy EngineeringZhejiang University
  • Yu Xiao-li 俞小莉
    • School of Mechanical and Energy EngineeringZhejiang University
Article

DOI: 10.1631/jzus.2006.A0391

Cite this article as:
Zhou, X. & Yu, X. J. Zhejiang Univ. - Sci. A (2006) 7: 391. doi:10.1631/jzus.2006.A0391

Abstract

A 2D stress strength interference model (2D-SSIM) considering that the fatigue reliability of engineering structural components has close relationship to load asymmetric ratio and its variability to some extent is put forward. The principle, geometric schematic and limit state equation of this model are presented. Reliability evaluation for a kind of diesel engine crankshaft was made based on this theory, in which multi-axial loading fatigue criteria was employed. Because more important factors, i.e. stress asymmetric ratio and its variability, are considered, it theoretically can make more accurate evaluation for structural component reliability than the traditional interference model. Correspondingly, a Monte-Carlo Method simulation solution is also given. The computation suggests that this model can yield satisfactory reliability evaluation.

Key words

Fatigue reliability2-dimensional interference model (2D-SSIM)Monte-Carlo MethodLoad asymmetric ratioMulti-axial fatigue criteria

Copyright information

© Springer-Verlag 2006