Performance evaluation of asynchronous two-stage manufacturing lines fabricating discrete parts

Asynchronous systems with deterministic processing times are critical for fabricating discrete parts, especially in countries offering high salaries. Despite their widespread application, it is difficult to analyze these systems using conventional analytical modeling tools as commonly used hypothese...

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Bibliographic Details
Published inCIRP journal of manufacturing science and technology Vol. 33; pp. 488 - 505
Main Authors Magnanini, Maria Chiara, Tolio, Tullio A.M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2021
Subjects
Continuous model
Discrete flow
Manufacturing systems
Markov modelling
Performance evaluation
Performance evaluation
Discrete flow
Continuous model
Manufacturing systems
Markov modelling
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Summary:Asynchronous systems with deterministic processing times are critical for fabricating discrete parts, especially in countries offering high salaries. Despite their widespread application, it is difficult to analyze these systems using conventional analytical modeling tools as commonly used hypotheses for these models consider different conditions compared to real behaviors. This paper presents a new analytical model for the performance evaluation of asynchronous two-stage manufacturing lines fabricating discrete parts with finite buffer capacity. A continuous-time Markov chain flow model that mimics the behavior of discrete asynchronous manufacturing systems by employing threshold-based control mechanisms is presented. The results obtained with the proposed model are compared with those using discrete event simulation, and they show good agreement. The model proposed in this paper can be used as a building block for the evaluation of longer asynchronous lines.
ISSN:1755-5817
1878-0016
DOI:10.1016/j.cirpj.2021.04.002