A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies
Workload control mechanisms are widely studied in the literature for the control of job-shop systems. The control of these systems involves acceptance, order release and priority dispatching. At the release level, the workload norm controls the “enters” of the jobs; it is relevant how the aggregate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/10/3497 |
| _version_ | 1797567649996079104 |
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| author | Paolo Renna |
| author_facet | Paolo Renna |
| author_sort | Paolo Renna |
| collection | DOAJ |
| description | Workload control mechanisms are widely studied in the literature for the control of job-shop systems. The control of these systems involves acceptance, order release and priority dispatching. At the release level, the workload norm controls the “enters” of the jobs; it is relevant how the aggregate workload is computed. Few works have studied new computation methods of the aggregate workload but use the adjusted aggregate workload proposed in the literature. This paper proposes a dynamically adjusted aggregate workload to improve the performance of the workload control mechanism in job-shop systems. The adjusted aggregate workload is updated when each part exits from a workstation; this means that the workload used to release the orders is related to the state of the job shop in real-time. Simulation is used to evaluate and compare the proposed model to the classical models proposed in the literature. The simulation experiments demonstrate improvement of performance and how the model proposed is robust under different manufacturing system conditions. |
| first_indexed | 2024-03-10T19:45:13Z |
| format | Article |
| id | doaj.art-e78d71219e2f4abc9e2f25d7ec3921d8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:45:13Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e78d71219e2f4abc9e2f25d7ec3921d82023-11-20T00:53:44ZengMDPI AGApplied Sciences2076-34172020-05-011010349710.3390/app10103497A Dynamic Adjusted Aggregate Load Method to Support Workload Control PoliciesPaolo Renna0School of Engineering, University of Basilicata, 85110 Potenza, ItalyWorkload control mechanisms are widely studied in the literature for the control of job-shop systems. The control of these systems involves acceptance, order release and priority dispatching. At the release level, the workload norm controls the “enters” of the jobs; it is relevant how the aggregate workload is computed. Few works have studied new computation methods of the aggregate workload but use the adjusted aggregate workload proposed in the literature. This paper proposes a dynamically adjusted aggregate workload to improve the performance of the workload control mechanism in job-shop systems. The adjusted aggregate workload is updated when each part exits from a workstation; this means that the workload used to release the orders is related to the state of the job shop in real-time. Simulation is used to evaluate and compare the proposed model to the classical models proposed in the literature. The simulation experiments demonstrate improvement of performance and how the model proposed is robust under different manufacturing system conditions.https://www.mdpi.com/2076-3417/10/10/3497workload controlflexible job-shop schedulingbottlenecksimulation |
| spellingShingle | Paolo Renna A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies Applied Sciences workload control flexible job-shop scheduling bottleneck simulation |
| title | A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies |
| title_full | A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies |
| title_fullStr | A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies |
| title_full_unstemmed | A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies |
| title_short | A Dynamic Adjusted Aggregate Load Method to Support Workload Control Policies |
| title_sort | dynamic adjusted aggregate load method to support workload control policies |
| topic | workload control flexible job-shop scheduling bottleneck simulation |
| url | https://www.mdpi.com/2076-3417/10/10/3497 |
| work_keys_str_mv | AT paolorenna adynamicadjustedaggregateloadmethodtosupportworkloadcontrolpolicies AT paolorenna dynamicadjustedaggregateloadmethodtosupportworkloadcontrolpolicies |