Component storage reliability evaluation method based on multi-performance parameters degradation analysis

2011 ◽  
Author(s):  
Yang Yang ◽  
Guicui Fu ◽  
Bo Wan ◽  
Hantian Gu
Keyword(s):  
Evaluation Method ◽  
Reliability Evaluation ◽  
Performance Parameters ◽  
Degradation Analysis

scholarly journals Research on Reliability Evaluation Method of Aerospace Pyrotechnic Devices Based on Energy Measurement

2020 ◽  
Vol 10 (22) ◽  
pp. 8200
Author(s):  
Yubo Zhu ◽  
Jili Rong ◽  
Qianqiang Song ◽  
Zhipei Wu
Keyword(s):  
Evaluation Method ◽  
High Reliability ◽  
Reliability Evaluation ◽  
Small Sample ◽  
Performance Parameters ◽  
Measuring Devices ◽  
Reliability Method ◽  
The Cost ◽  
Sample Method ◽  
T Distribution

High reliability is the basic requirement of aerospace pyrotechnic devices. Traditional reliability evaluation methods require a lot of tests, which become too expensive; therefore, the small-sample evaluation method is needed to reduce the cost. Using energy as a performance parameter can better reflect the essence of the function of the pyrotechnic device compared to using force. Firstly, this article assumes that the strength obeys the normal distribution, and the stress is a constant; therefore, the reliability evaluation formula based on the t distribution is proposed. Then, taking the pin puller as the research object, four sets of energy measuring devices were developed so as to obtain its performance parameters. Finally, the evaluation results show that the pin puller has a high reliability of 0.9999999765 with a confidence level of 0.995. The reliability method proposed in this paper is a small-sample method for evaluating aerospace pyrotechnic devices, which can greatly reduce the cost of reliability evaluation. Moreover, the energy measuring devices developed in this paper can provide a new way of measuring performance parameters for piston-type pyrotechnic devices.

Robust Test Method of TSOP PEMs for Space Application

2019 ◽  
Author(s):  
Yasunobu Iwai ◽  
Koichi Shinozaki ◽  
Daiki Tanaka
Keyword(s):  
Evaluation Method ◽  
Low Cost ◽  
Reliability Evaluation ◽  
Test Method ◽  
Thermal Shock Test ◽  
Space Application ◽  
Space Applications ◽  
Limit Test ◽  
Long Time ◽  
Short Time

Abstract Compared with space parts, consumer parts are highly functional, low cost, compact and lightweight. Therefore, their increased usage in space applications is expected. Prior testing and evaluation on space applicability are necessary because consumer parts do not have quality guarantees for space application [1]. However, in the conventional reliability evaluation method, the test takes a long time, and the problem is that the robustness of the target sample can’t be evaluated in a short time. In this report, we apply to the latest TSOP PEM (Thin Small Outline Package Plastic Encapsulated Microcircuit) an evaluation method that combines preconditioning and HALT (Highly Accelerated Limit Test), which is a test method that causes failures in a short time under very severe environmental conditions. We show that this method can evaluate the robustness of TSOP PEMs including solder connections in a short time. In addition, the validity of this evaluation method for TSOP PEM is shown by comparing with the evaluation results of thermal shock test and life test, which are conventional reliability evaluation methods.

Research on Reliability Evaluation Methods of Distribution System

2014 ◽  
Vol 672-674 ◽  
pp. 1441-1446 ◽  
Author(s):  
Yu Qiang Ou ◽  
Le Feng Cheng ◽  
Jian Zhong Wen ◽  
Xuan Yu Qiu ◽  
Tao Yu
Keyword(s):  
Distribution System ◽  
Evaluation Method ◽  
Network Reliability ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Evaluation Indexes ◽  
Specific Distribution ◽  
And Function ◽  
Meaning And Function

Research on reliability of distribution network has very important meaning and function to ensure the quality of power supply. This paper introduces some basic concepts of reliability in distribution network, including distribution network reliability definition, task and index. The classical reliability evaluation method was reviewed, and focused on specific distribution network, an example analysis was given, and specific reliability evaluation indexes were calculated. Finally, the future development of distribution network reliability evaluation was made a simple prospect.

scholarly journals A Hybrid Reliability Evaluation Method for Meshed VSC-HVDC Grids

Energies ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 895 ◽  
Author(s):  
Haipeng Xie ◽  
Zhaohong Bie ◽  
Yanling Lin ◽  
Chao Zheng
Keyword(s):  
Evaluation Method ◽  
Reliability Evaluation ◽  
Hybrid Reliability
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