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

• 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
• Language: English
• 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
• ISSN: 1672-5220

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.