ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Operations & Production Management (Online) |
Texto Completo: | https://bjopm.org.br/bjopm/article/view/V9N1A4 |
Resumo: | Generally, production systems that use automatic control as automatic welding process, production of ceramic products, making clothes use on-line process control to evaluate the quality of their production processes. The control system consists of a periodic inspection of one item after every m produced items. If the number of non-conformities meets the control limit then it is decided that the process is in-control, otherwise the process is stopped for adjustment. The process starts in-control with a non-conformities rate and, after an assignable cause, this rate increases leading the system to operate out of control. The process remains in these conditions until the change is detected and the process adjusted. After adjustment, the process returns to operate in-control. The aim of this paper is to present an economic approach to monitor the rate of non-conformities in a production by on-line process control. To design such type of process, an average cost per item produced is achieved through the properties of an ergodic Markov chain and the two required parameters: the inspection interval and the upper control limit are obtained by minimizing the average cost per produced item. A numerical example illustrates the proposed procedure. |
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Brazilian Journal of Operations & Production Management (Online) |
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ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEMOn-line process controlrate of non-conformitiesMarkov chaineconomic model. Generally, production systems that use automatic control as automatic welding process, production of ceramic products, making clothes use on-line process control to evaluate the quality of their production processes. The control system consists of a periodic inspection of one item after every m produced items. If the number of non-conformities meets the control limit then it is decided that the process is in-control, otherwise the process is stopped for adjustment. The process starts in-control with a non-conformities rate and, after an assignable cause, this rate increases leading the system to operate out of control. The process remains in these conditions until the change is detected and the process adjusted. After adjustment, the process returns to operate in-control. The aim of this paper is to present an economic approach to monitor the rate of non-conformities in a production by on-line process control. To design such type of process, an average cost per item produced is achieved through the properties of an ergodic Markov chain and the two required parameters: the inspection interval and the upper control limit are obtained by minimizing the average cost per produced item. A numerical example illustrates the proposed procedure.Brazilian Association for Industrial Engineering and Operations Management (ABEPRO)2013-05-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://bjopm.org.br/bjopm/article/view/V9N1A4Brazilian Journal of Operations & Production Management; Vol. 9 No. 1 (2012): July, 2012; 55-692237-8960reponame:Brazilian Journal of Operations & Production Management (Online)instname:Associação Brasileira de Engenharia de Produção (ABEPRO)instacron:ABEPROenghttps://bjopm.org.br/bjopm/article/view/V9N1A4/V9N1A4Vasconcelos, Renata Mendonça Rodriguesmedeiros, pledson guedes deHo, Linda Leeinfo:eu-repo/semantics/openAccess2019-04-04T07:28:36Zoai:ojs.bjopm.org.br:article/127Revistahttps://bjopm.org.br/bjopmONGhttps://bjopm.org.br/bjopm/oaibjopm.journal@gmail.com2237-89601679-8171opendoar:2023-03-13T09:45:05.197545Brazilian Journal of Operations & Production Management (Online) - Associação Brasileira de Engenharia de Produção (ABEPRO)false |
dc.title.none.fl_str_mv |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
title |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
spellingShingle |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM Vasconcelos, Renata Mendonça Rodrigues On-line process control rate of non-conformities Markov chain economic model. |
title_short |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
title_full |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
title_fullStr |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
title_full_unstemmed |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
title_sort |
ON-LINE PROCESS CONTROL OF THE NUMBER OF NON-CONFORMITIES IN THE INSPECTED ITEM |
author |
Vasconcelos, Renata Mendonça Rodrigues |
author_facet |
Vasconcelos, Renata Mendonça Rodrigues medeiros, pledson guedes de Ho, Linda Lee |
author_role |
author |
author2 |
medeiros, pledson guedes de Ho, Linda Lee |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Vasconcelos, Renata Mendonça Rodrigues medeiros, pledson guedes de Ho, Linda Lee |
dc.subject.por.fl_str_mv |
On-line process control rate of non-conformities Markov chain economic model. |
topic |
On-line process control rate of non-conformities Markov chain economic model. |
description |
Generally, production systems that use automatic control as automatic welding process, production of ceramic products, making clothes use on-line process control to evaluate the quality of their production processes. The control system consists of a periodic inspection of one item after every m produced items. If the number of non-conformities meets the control limit then it is decided that the process is in-control, otherwise the process is stopped for adjustment. The process starts in-control with a non-conformities rate and, after an assignable cause, this rate increases leading the system to operate out of control. The process remains in these conditions until the change is detected and the process adjusted. After adjustment, the process returns to operate in-control. The aim of this paper is to present an economic approach to monitor the rate of non-conformities in a production by on-line process control. To design such type of process, an average cost per item produced is achieved through the properties of an ergodic Markov chain and the two required parameters: the inspection interval and the upper control limit are obtained by minimizing the average cost per produced item. A numerical example illustrates the proposed procedure. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://bjopm.org.br/bjopm/article/view/V9N1A4 |
url |
https://bjopm.org.br/bjopm/article/view/V9N1A4 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://bjopm.org.br/bjopm/article/view/V9N1A4/V9N1A4 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Brazilian Association for Industrial Engineering and Operations Management (ABEPRO) |
publisher.none.fl_str_mv |
Brazilian Association for Industrial Engineering and Operations Management (ABEPRO) |
dc.source.none.fl_str_mv |
Brazilian Journal of Operations & Production Management; Vol. 9 No. 1 (2012): July, 2012; 55-69 2237-8960 reponame:Brazilian Journal of Operations & Production Management (Online) instname:Associação Brasileira de Engenharia de Produção (ABEPRO) instacron:ABEPRO |
instname_str |
Associação Brasileira de Engenharia de Produção (ABEPRO) |
instacron_str |
ABEPRO |
institution |
ABEPRO |
reponame_str |
Brazilian Journal of Operations & Production Management (Online) |
collection |
Brazilian Journal of Operations & Production Management (Online) |
repository.name.fl_str_mv |
Brazilian Journal of Operations & Production Management (Online) - Associação Brasileira de Engenharia de Produção (ABEPRO) |
repository.mail.fl_str_mv |
bjopm.journal@gmail.com |
_version_ |
1797051460018503680 |