Concurrent design of products for manufacturing system performance

Routing flexibility is a major contributor towards flexibility of a flexible job shop manufacturing system. This article focuses on a simulation-based experimental study on the effect of routing flexibility and sequencing rules on the performance of a stochastic flexible job shop manufacturing system with sequence-dependent setup times while considering dynamic arrival of job types. Six route flexibility levels and six sequencing rules are considered for detailed study. The performance of manufacturing system is evaluated in terms of flow time related and due date–related measures. Results reveal that routing flexibility and sequencing rules have significant impact on system performance, and the performance of a system can be increased by incorporating routing flexibility. Furthermore, the system performance starts deteriorating as the level of route flexibility is increased beyond a particular limit for a specified sequencing rule. The statistical analysis of the results indicates that when flexibility exists, earliest due date rule emerges as a best sequencing rule for maximum flow time, mean tardiness and maximum tardiness performance measures. Furthermore, smallest setup time rule is better than other sequencing rules for mean flow time and number of tardy jobs performance measures. Route flexibility level two provides best performance for all considered measures.

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Evaluating the effect of machine and routing flexibility on flexible manufacturing system performance

International Journal of Services and Operations Management ◽

10.1504/ijsom.2013.056144 ◽

2013 ◽

Vol 16 (2) ◽

pp. 240 ◽

Cited By ~ 4

Author(s):

Ajay Singholi ◽

Mohammed Ali ◽

Chitra Sharma

Keyword(s):

System Performance ◽

Flexible Manufacturing ◽

Manufacturing System ◽

Flexible Manufacturing System ◽

Routing Flexibility

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Modeling and analysis of carousel-based mixed-model flexible manufacturing system using colored Petri net

Advances in Mechanical Engineering ◽

10.1177/1687814019889740 ◽

2019 ◽

Vol 11 (12) ◽

pp. 168781401988974

Author(s):

Hafiz Zahid Nabi ◽

Tauseef Aized

Keyword(s):

Petri Net ◽

System Performance ◽

Flexible Manufacturing ◽

Manufacturing System ◽

Flexible Manufacturing System ◽

Mixed Model ◽

Colored Petri Net ◽

Material Supply ◽

Work In Process ◽

Production Resources

This study aims to model, analyze, and evaluate performance of a flexible manufacturing system, constituting a carousel-based manufacturing and assembly cells layout, configured to produce mixed-model multiple products employing inter-/intra-cellular routing flexibility in which manufacturing and assembly resources are subject to working and failure modes. A hierarchical colored Petri net model is developed to analyze performance of the flexible manufacturing system. Colored Petri net modeling experiments have been conducted to evaluate the system performance for throughput, cycle time, and work-in-process. The system performance has been investigated in relation to material supply and handling system, process execution, and production resources reliability variables. Different input factors are considered for simulation modeling such as mean machining time, mean loading/unloading time, mean assembly time, buffer capacity, material supply inter-arrival time, number of operations between failures, and mean time to repair for production resources; a variation in input factors has shown a significant impact on system performance measures. The colored Petri net–based modeling, simulation, and analysis approach has been demonstrated as an efficient method for carousel-based mixed-model configured flexible manufacturing system.

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