Reliability sensitivity of automobile components with arbitrary distribution parameters

Abstract

Techniques from the perturbation method, the Edgeworth series, the reliability-based design theory, and the sensitivity analysis approach are employed to present a practical and efficient method for the reliability sensitivity of automobile components with arbitrary distribution parameters. On the condition of first four moments of original random variables known, the reliability sensitivity theory and case studies are researched. The respective program can be used to obtain the reliability sensitivity of automobile components with arbitrary distribution parameters accurately and quickly.

Indexing accuracy reliability sensitivity analysis of power tool turret

“…The indexing accuracy reliability of PTT is estimated by the reliability perturbation method which is proposed by Zhang YM and is described in detail in the document [25].The indexing accuracy reliability could be estimated by:…”

“…(28) and (29) is introduced in [25]. The indexing accuracy reliability sensitivity of the considered PTT to the random variable's and the wear process's means is shown in Fig.…”

“…7. Here, the subfigures (1), (2), ……, (25) are the sensitivity curves to the means or the standard deviations of x 1 , x 2 , ......, x 25 respectively. The sensitivity to the means or the standard deviations of the tooth thickness wear processes of the lock gear disc, the rotating gear disc and the fixed gear disc are shown by the subfigures (26), (27) and (28) in Fig.…”

Advanced method to estimate reliability-based sensitivity of mechanical components with strongly nonlinear performance function

“…The influence of each designed parameter on the structural reliability of the system is thoroughly revealed by the reliability sensitivity analysis, which provides a necessary theoretic basis for structural reliability-based robust and optimization design [1][2][3] . In recent years, both domestic and overseas researchers have made a distinct progress in reliability computation methods, including the finite difference method [4][5][6] , the first-order second-moment method or other higher order methods [7][8][9] , the method based on the perturbation theory [10][11][12][13][14] , the important sampling Monte-Carlo simulation method [15][16][17] , and the response surface approach [18][19][20] . Being one of moment methods, the perturbation theory method requires neither iteration nor the computation of derivatives and can easily solve the system reliability with multimode and multiple design points.…”

Reliability sensitivity of multi-degree-of-freedom uncertain nonlinear systems with independent failure modes

“…A set useful sensitivity analy-sis in vibration reliability has practical applications within reliability-based design, m optimization of structural design, construction, maintenance and inspection under reliability constraints, in parameter studies of the reliability, and in reliability updating. Structural reliability sensitivity calculation methods are well developed (Madsen et at., 1986;Zhang et al, 2003;2005b). These publications have presented the efficient and accurate computational reliability sensi-tivity methods.…”