Workload control under continuous order release

Fernandes, Nuno O.; Silva, Sílvio Carmo

doi:10.1016/j.ijpe.2010.09.026

Cited by 32 publications

(29 citation statements)

References 15 publications

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“…Cigolini & Portioli-Staudacher, 2002;Fredendall et al, 2010) or continuously at any moment in time (see, e.g. Fernandes & Carmo-Silva, 2011;Fernandes et al, 2014;Thürer et al, 2014b). In this study, it is executed continuously at any moment in time since this approach was recently shown by Thürer et al (2015a) to be particularly suitable for the pure flow shop environment considered in our study.…”

Section: Workload Control Release Controlling All Stations -Continuousmentioning

confidence: 99%

Deconstructing bottleneck shiftiness: the impact of bottleneck position on order release control in pure flow shops

Thürer

Stevenson

et al. 2017

Production Planning & Control

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Bottleneck shiftiness is an important managerial problem that negatively affects shop floor manageability. It has therefore received much research attention. Yet research has focused on how protective capacity can be used to influence bottleneck shiftiness rather than on assessing its operational impact. The latter is complex to evaluate since changing the degree of bottleneck shiftiness influences utilization, which makes the results of different experimental settings non-comparable. To overcome this problem, we take a different approach. Bottleneck shiftiness is decomposed by investigating its underlying phenomenon: the impact of the bottleneck position. Using a simulation model of a pure flow shop, we demonstrate that the bottleneck position has a negligible impact on performance if jobs are released immediately and control is exercised by a dispatching rule. But when order release is controlled, the bottleneck position does impact performance -tighter control can be exercised, and better performance achieved, the further upstream the bottleneck is positioned.Hence, control parameters need to be adjusted. Further, results show that it is important to be aware of the direction of the bottleneck shift. If the bottleneck shifts upstream (from the current bottleneck), performance is likely to improve rather than deteriorate as is implicitly assumed in the literature.

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Section: Workload Control Release Controlling All Stations -Continuousmentioning

confidence: 99%

Deconstructing bottleneck shiftiness: the impact of bottleneck position on order release control in pure flow shops

Thürer

Stevenson

et al. 2017

Production Planning & Control

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“…All the improvement programs presented statistically significant contributions for lead time reduction in at least some production environments studied, except improvement in the arrival coefficient. The great part of the research on WorkLoad Control (WLC) concerns the continuous order release (Fernandes & Silva, 2011), the effect of protective capacity (Fernandes & Silva, 2014;Thürer et al, 2012Thürer et al, , 2015. Then, the workload control is studied only for the order release decision in manufacturing systems (Renna, 2015b).…”

Section: Overview Of the Literaturementioning

confidence: 99%

“…The allocation of the improvements is based on the evaluation of the workload of the shop-floor. Workload control is a production planning control particular relevant for Make-To-Order (Stevenson et al, 2005;Fernandes & Carmo-Silva, 2011).…”

Section: Introductionmentioning

confidence: 99%

Allocation improvement policies to reduce process time based on workload evaluation in job shop manufacturing systems

Renna¹

2017

10.5267/j.ijiec

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The research discusses in this paper concerns the improvement allocation policies to reduce the process time in job-shop manufacturing systems. The policies proposed are based on the evaluation of the workload control of the entire manufacturing system. Three policies are proposed: centralized, distributed and proportional. A simulation model is used to test the proposed policies under different conditions as: static and dynamic demand; introduction of machine breakdowns; different level of average manufacturing system utilization. The performance measures are compared to a manufacturing system without policies. The simulation results show that the improvement allocation allows to improve the performance with limited investment (average reduction of process time needed) and how the machine breakdowns and demand changes lead to different better policy. The decision maker can use these results to decide the better policy to use.

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“…Fernandes and Silva [6] reported a simulation study of several issues concerning WLC under continuous order release. Specifically, they discussed the impact of the workload control strategy and the implications of machine inter-changeability on the system performance.…”

Section: Literature Overviewmentioning

confidence: 99%

“…Workload control is a production planning control particular relevant for Make To Order sector and Smell and Medium Enterprises [6,13].…”

Section: Introductionmentioning

confidence: 99%

Workload control policies under continuous order release

Renna

2015

Prod. Eng. Res. Devel.

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This paper analyses the workload control in\ud manufacturing systems under continuous order release by a\ud simulation environment. The main issues investigated in\ud the proposed research regard the selection of the order to\ud release, among the orders in a pre-shop queue, the workload\ud computation based on the routing of the orders and the\ud workload norm. The simulations are conducted changing\ud the number of bottleneck in the manufacturing system\ud tested. The simulation results highlight how two of the\ud proposed policies lead to better performance measures\ud compared to a policy proposed in literature. The main\ud contributions regard the higher improvements for the due\ud date performance (average lateness and percentage of\ud orders in delay) introducing a pre-shop queue management\ud balancing the workload and the computation of the corrected\ud workload considering the average utilization of the\ud work centers

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Workload control under continuous order release

Cited by 32 publications

References 15 publications

Deconstructing bottleneck shiftiness: the impact of bottleneck position on order release control in pure flow shops

Deconstructing bottleneck shiftiness: the impact of bottleneck position on order release control in pure flow shops

Allocation improvement policies to reduce process time based on workload evaluation in job shop manufacturing systems

Workload control policies under continuous order release

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