Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty

How to use the limited precision of remanufactured parts to assemble higher-quality remanufactured products is a challenge for remanufacturing engineering under uncertainty. On the basis of analyzing the uncertainty of remanufacturing parts, this paper takes tolerance redistributing of the reassembl...

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Main Author: Conghu Liu
Format: Article
Language:English
Published: MDPI AG 2016-10-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/18/10/348
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author Conghu Liu
author_facet Conghu Liu
author_sort Conghu Liu
collection DOAJ
description How to use the limited precision of remanufactured parts to assemble higher-quality remanufactured products is a challenge for remanufacturing engineering under uncertainty. On the basis of analyzing the uncertainty of remanufacturing parts, this paper takes tolerance redistributing of the reassembly (remanufactured assembly) dimensional chain as the research object. An entropy model to measure the uncertainty of assembly dimensional is built, and we quantify the degree of the uncertainty gap between reassembly and assembly. Then, in order to make sure the uncertainty of reassembly is not lower than that of assembly, the tolerance redistribution optimization model of the reassembly dimensional chain is proposed which is based on the tolerance of the grading allocation method. Finally, this paper takes the remanufactured gearbox assembly dimension chain as an example. The redistribution optimization model saves 19.11% of the cost with the assembly precision of remanufactured products. It provides new technical and theoretical support to expand the utilization rate of remanufactured parts and improve reassembly precision.
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spelling doaj.art-7e354f8524b14b658e63f5f0a3fb38832022-12-22T02:59:07ZengMDPI AGEntropy1099-43002016-10-01181034810.3390/e18100348e18100348Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of UncertaintyConghu Liu0School of Mechanical and Electrical Engineering, Suzhou University, Suzhou 234000, ChinaHow to use the limited precision of remanufactured parts to assemble higher-quality remanufactured products is a challenge for remanufacturing engineering under uncertainty. On the basis of analyzing the uncertainty of remanufacturing parts, this paper takes tolerance redistributing of the reassembly (remanufactured assembly) dimensional chain as the research object. An entropy model to measure the uncertainty of assembly dimensional is built, and we quantify the degree of the uncertainty gap between reassembly and assembly. Then, in order to make sure the uncertainty of reassembly is not lower than that of assembly, the tolerance redistribution optimization model of the reassembly dimensional chain is proposed which is based on the tolerance of the grading allocation method. Finally, this paper takes the remanufactured gearbox assembly dimension chain as an example. The redistribution optimization model saves 19.11% of the cost with the assembly precision of remanufactured products. It provides new technical and theoretical support to expand the utilization rate of remanufactured parts and improve reassembly precision.http://www.mdpi.com/1099-4300/18/10/348remanufacturingentropyassembly dimensionalredistribution
spellingShingle Conghu Liu
Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
Entropy
remanufacturing
entropy
assembly dimensional
redistribution
title Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
title_full Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
title_fullStr Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
title_full_unstemmed Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
title_short Tolerance Redistributing of the Reassembly Dimensional Chain on Measure of Uncertainty
title_sort tolerance redistributing of the reassembly dimensional chain on measure of uncertainty
topic remanufacturing
entropy
assembly dimensional
redistribution
url http://www.mdpi.com/1099-4300/18/10/348
work_keys_str_mv AT conghuliu toleranceredistributingofthereassemblydimensionalchainonmeasureofuncertainty