Optimization method of multi-body structure based on the fatigue life

Jian Ma; Caijun Xue; Yaquan Deng; Hong Wang

doi:10.1117/12.839047

24 August 2009 Optimization method of multi-body structure based on the fatigue life

Jian Ma, Caijun Xue, Yaquan Deng, Hong Wang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737514 (2009) https://doi.org/10.1117/12.839047
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

A new optimization method based on the fatigue life of multi-body structure is proposed in this paper with the computeraided engineering software. Taking the nose landing gear of some aero transports as an example, the loading history of the nose landing gear is firstly gained by the multi-body dynamics simulation, and then the fatigue life is predicted through the finite element method and fatigue analysis. In accordance with the forecasting results, the weakest parts of the components are identified, and then they are optimized based on the fatigue life to lengthen the fatigue life of structural weaknesses thus to the fatigue lives of the whole structures.

Citation Download Citation

Jian Ma, Caijun Xue, Yaquan Deng, and Hong Wang "Optimization method of multi-body structure based on the fatigue life", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737514 (24 August 2009); https://doi.org/10.1117/12.839047

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