Workload control and order release in two-level multi-stage job shops: an assessment by simulation

Autor(es)

Thuerer, Matthias ^[1] ; Stevenson, Mark ^[2] ; Silva, Cristovao ^[3] ; Land, Martin ^[4] ; Godinho Filho, Moacir ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Ind Engn, BR-13560 Sao Carlos, SP - Brazil

^[2] Univ Lancaster, Dept Management Sci, Lancaster - England

^[3] Univ Coimbra, Dept Mech Engn, Coimbra - Portugal

^[4] Univ Groningen, Dept Operat, Groningen - Netherlands

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH; v. 51, n. 3, p. 869-882, FEB 1 2013.
• Citações Web of Science: 4

Resumo

Most studies on the performance of workload control (WLC) order release methods assume products have simple structures. But, in practice, products are often complex and consist of a number of sub-assemblies that flow through a level 1 job shop before converging on several final assembly operations in a level 2 assembly shop. Evaluating the performance of release methods in this context referred to as the two-level multi-stage job shop is an important step towards improving the alignment between WLC theory and practice. We use simulation to assess the performance of four of the best-performing WLC order release methods. Results suggest that WLC order release has the potential to limit work-in-process (WIP) while reducing the percentage of tardy jobs. It is also important to consider when and where release should be controlled. Results suggest that: (1) orders should be considered for release to level 2 when the first sub-assembly is complete, rather than only when all of the sub-assemblies that make up an assembly order are complete at level 1; and, (2) exercising control at level 2 (with or without control at level 1) leads to a greater reduction in the percentage of tardy jobs than control at level 1 only. (AU)

• Processo FAPESP: 11/10605-1 - Proposta de Sistema de Apoio à Decisão baseado no Worload Control (WLC) para o Planejamento e Controle da Produção de pequenas e médias empresas.
• Beneficiário: Matthias Thürer
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado