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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.1998.tde-21022024-134831
Document
Author
Full name
Luis Alberto Martínez Riascos
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1998
Supervisor
Committee
Miyagi, Paulo Eigi (President)
Horikawa, Oswaldo
Rillo, Marcio
Title in Portuguese
Modelagem do tratamento de falhas em sistemas de manufatura através de Rede de Petri
Keywords in Portuguese
Engenharia mecânica
Redes de Petri
Sistemas de manufaturas
Abstract in Portuguese
O crescimento na complexidade de sistemas automatizados de produção demanda a utilização de novas tecnologias para sua modelagem e análise. Exemplos destes sistemas são sistemas flexíveis de manufatura (FMS), sistemas antropocêntricos de produção(APS) e sistemas de automação balanceada (BAS), que são classificados como sistemas dinâmicos a eventos discretos (DEDS), pois seus estados evoluem em função de eventos discretos e específicos. Neste contexto, a Rede de Petri (RP) se destaca como uma ferramenta para modelagem e análise de DEDS que apresentam processos concorrentes, assíncronos, etc.. Entretanto, a modelagem dos processos considerando falhas/erros inerentes de sistemas flexíveis, antropocêntricos e com automação balanceada tem sido considerada relativamente complexa para ser representada pelas RP tradicionalmente estudadas pelos pesquisadores. Assim, este trabalho introduz uma variação da RP, a Rede de Petri Auto-Modificável (RPAM), junto com novos elementos estruturais, como uma ferramenta para modelagem, análise e controle de sistemas automatizados de produção, que considera o tratamento de falhas e recuperação de erros.
Title in English
Untitled in englisg
Keywords in English
Manufacturing systems
Mechanical engineering
Petri nets
Abstract in English
The growth in the complexity of automated production systems demand the utilization of novel Technologies for their modeling and analyzing. Examples of such systems are flexible manufacturing systems (FMS), antrophocentric production systems (APS) and balanced automation systems (BAS). They are classifieds as discrete event dynamics systems (DEDS), where theirs states changes as a function of specific and discrete events. In this contexto, the Petri Net (PN) detaches as a tool for modeling and analyzing DEDS which presentes concurrent, asynchronous process, etc. However, the modeling of the process considering failures/erros inherent of flexible, anthropocentric and with balanced automation systems have benn considered relatively complex to be represented for PN, traditionally studied for researches. Therefore, this work introduces a variation of PN, called Self-Modifying Petri Net (SMPN), together with new structure elements, as a tool for modeling, analyzing and controlo f automated production systems, which considers the failure treatment and mistakes recovery.
 
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Publishing Date
2024-02-21
 
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