Reliability Assessment Method Based on Interference Variable for Stress-Strength Model

Stress-strength model is a basic and important tool for reliability analysis.There are few methods to assess the confidence limit of interference reliability when the distribution parameters of stress and strength are all unknown.A new assessment method of interference reliability is proposed and th...

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Published in东华大学学报（英文版） Vol. 32; no. 6; pp. 1047 - 1051
Main Author 吴琼 杨建中 王晶燕 满剑锋 孙国鹏
Format Journal Article
LanguageEnglish
Published Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, China%Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, China 31.12.2015
College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Subjects
highly reliable product
small sample size
stress-strength mode (SSM)
interference reliability
lower confidence limit of reliability
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Summary:Stress-strength model is a basic and important tool for reliability analysis.There are few methods to assess the confidence limit of interference reliability when the distribution parameters of stress and strength are all unknown.A new assessment method of interference reliability is proposed and the estimates of the distribution parameters are accordingly given.The lower confidence limit of interference reliability with given confidence can be obtained with the method even though the parameters are all unknown.Simulation studies and an engineering application are conducted to validate the method,which suggest that the method provides precise estimates even for sample size of approximately.
Bibliography:WU Qiong , YANG Jian-zyhong , WANG Jing-yan, MAN Jian-feng, SUN Guo-peng （ 1 Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, China 2 College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China）
31-1920/N
interference reliability stress-strength mode（SSM） lower confidence limit of reliability small sample size highly reliable product
Stress-strength model is a basic and important tool for reliability analysis.There are few methods to assess the confidence limit of interference reliability when the distribution parameters of stress and strength are all unknown.A new assessment method of interference reliability is proposed and the estimates of the distribution parameters are accordingly given.The lower confidence limit of interference reliability with given confidence can be obtained with the method even though the parameters are all unknown.Simulation studies and an engineering application are conducted to validate the method,which suggest that the method provides precise estimates even for sample size of approximately.
ISSN:1672-5220