机械零部件时变可靠性及其灵敏度分析

doi:10.3969/j.issn.1002-0268.2015.10.024

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Abstract In this study, a 1D Brownian movement formula that considers the uncertainty of initial parameters was derived and a time-dependent model of load and structural parameters established. A model for reliability and its corresponding sensitivity analysis was proposed as well according to the residual strength distribution calculated based on the S-N characteristics of the material and on stress-strength interference theory. This model considers the effects of interaction under uncertain structural parameters and strength as well as the uncertainty of actual use. On this basis, the variation rules of initial parameters, strength, load, reliability, and its sensitivity with time are analyzed; those of reliability, failure rate, and reliability sensitivity with time were calculated when the driving axle of a vehicle was taken as an example.

Key words： automobile engineering vehicle component stress-strength interference method model of time-dependent reliability and sensitivity analysis 1D Brownian movement formula

Received: 10 July 2015

Fund:Supported by the Road and Transport R&D Project for Western Regions of China Commissioned by Ministry of Transport (No.2013319223180)

Corresponding Authors: ZHANG Lu,E-mail address:443933501@qq.com E-mail: 443933501@qq.com

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	ZHANG Lu
	WANG Yun-peng
	REN Chun-xiao
	LIU Ting-jie

Cite this article:

ZHANG Lu,WANG Yun-peng,REN Chun-xiao, et al. Analysis of Time-dependent Reliability and Sensitivity of Vehicle Components[J]. Journal of Highway and Transportation Research and Development, 2016, 10(1): 104-110.

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http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/10.3969/j.issn.1002-0268.2015.10.024 OR http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/Y2016/V10/I1/104

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