Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis

During the assembly process, there are inevitable variations and noise factors in the material properties, process parameters and screening scheme, which may affect the quality of the product. Using the stress-strength model, an evaluated screening scheme method, by analyzing the variation of the de...

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Main Authors: Yubing Huang, Wei Dai, Lianxi Liu, Yu Zhao
Format: Article
Language:English
Published: MDPI AG 2018-06-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/20/6/447
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author Yubing Huang
Wei Dai
Lianxi Liu
Yu Zhao
author_facet Yubing Huang
Wei Dai
Lianxi Liu
Yu Zhao
author_sort Yubing Huang
collection DOAJ
description During the assembly process, there are inevitable variations and noise factors in the material properties, process parameters and screening scheme, which may affect the quality of the product. Using the stress-strength model, an evaluated screening scheme method, by analyzing the variation of the defect density in the assembly process, is proposed and discussed. The influence of screening stress on product defects is considered to determine the screening scheme. We performed the defect stream analysis by calculating the recursive relations of residual defect density under multi-stress conditions. We find that the probability density function, which shows the defect changing process from latent to dominant relative to the time process, agrees very well with the historical data. We also calculate the risk as the entropy of the assembly task. Finally, we verify our method by analyzing the assembly process of a certain product.
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spelling doaj.art-17b16843030d4b509ddd7886d1a39a222022-12-22T01:59:18ZengMDPI AGEntropy1099-43002018-06-0120644710.3390/e20060447e20060447Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream AnalysisYubing Huang0Wei Dai1Lianxi Liu2Yu Zhao3School of Reliability and Systems Engineering, Beihang University, Beijing 100191, ChinaSchool of Reliability and Systems Engineering, Beihang University, Beijing 100191, ChinaBeijing Xinghang Mechanical-Electrical Equipment Co., Beijing 10091, ChinaSchool of Reliability and Systems Engineering, Beihang University, Beijing 100191, ChinaDuring the assembly process, there are inevitable variations and noise factors in the material properties, process parameters and screening scheme, which may affect the quality of the product. Using the stress-strength model, an evaluated screening scheme method, by analyzing the variation of the defect density in the assembly process, is proposed and discussed. The influence of screening stress on product defects is considered to determine the screening scheme. We performed the defect stream analysis by calculating the recursive relations of residual defect density under multi-stress conditions. We find that the probability density function, which shows the defect changing process from latent to dominant relative to the time process, agrees very well with the historical data. We also calculate the risk as the entropy of the assembly task. Finally, we verify our method by analyzing the assembly process of a certain product.http://www.mdpi.com/1099-4300/20/6/447assembly processscreening evaluationdefect streamstress-strength modelentropy
spellingShingle Yubing Huang
Wei Dai
Lianxi Liu
Yu Zhao
Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
Entropy
assembly process
screening evaluation
defect stream
stress-strength model
entropy
title Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
title_full Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
title_fullStr Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
title_full_unstemmed Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
title_short Screening Scheme Evaluation of the Assembly Process Based on the Stress-Strength Model and Defect Stream Analysis
title_sort screening scheme evaluation of the assembly process based on the stress strength model and defect stream analysis
topic assembly process
screening evaluation
defect stream
stress-strength model
entropy
url http://www.mdpi.com/1099-4300/20/6/447
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AT weidai screeningschemeevaluationoftheassemblyprocessbasedonthestressstrengthmodelanddefectstreamanalysis
AT lianxiliu screeningschemeevaluationoftheassemblyprocessbasedonthestressstrengthmodelanddefectstreamanalysis
AT yuzhao screeningschemeevaluationoftheassemblyprocessbasedonthestressstrengthmodelanddefectstreamanalysis