Yimin Zhang/Xiangdong He/Zhou Yang/Qiaoling Liu/Bangchun Wen
The Journal of Mechanical Science and Technology, vol. 24, no. 6, pp.1187-1193, 2010

Abstract : This paper presents a reliability-based sensitivity method for mechanical components with arbitrary distribution parameters. Techniques from the perturbation method, the Edgeworth series, the reliability-based design theory, and the sensitivity analysis approach were employed directly to calculate the reliability-based sensitivity of mechanical components on the condition that the first four moments of the original random variables are known. The reliability-based sensitivity information of the mechanical components can be accurately and quickly obtained using a practical computer program. The effects of the design parameters on the reliability of mechanical components were studied. The method presented in this paper provides the theoretic basis for the reliability-based design of mechanical components.

Keyword : Mechanical components; Reliability-based sensitivity; Probabilistic perturbation method; Arbitrary distribution parameters; The Edgeworth series