Shifting bottleneck detection

Roser, Christoph; Nakano, Masaru; Tanaka, Minoru

doi:10.1109/wsc.2002.1166360

Cited by 111 publications

(58 citation statements)

References 9 publications

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“…The average active period method [16] and the active period method [17,18] by the primary author are based on the duration a process is working without interruptions due to waiting for parts or transport. The average active period method defines the bottleneck as the process with the longest average active period, while the active period method defines the momentary bottleneck as the process with the momentarily longest active period.…”

Section: Active Period Methodsmentioning

confidence: 99%

Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk

2015

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Bottleneck detection in manufacturing is the key to improving production efficiency and stability in order to improve capacity. Yet, common bottleneck detection methods in industry and academia lack either accuracy or practicability, or both, for dynamic systems. The new methodology is conducted by the observation of processes and inventories. Blocked processes and full inventories indicate a downstream bottleneck. Starved processes and empty inventories indicate an upstream bottleneck. Through subsequent observations of multiple process states and inventory levels within a system, it is possible to determine the direction of the bottleneck at the given time and hence to find the momentary bottleneck in the system. The shifting of bottlenecks can be observed directly. Work sampling techniques can be used to obtain a long-term picture of the dynamically shifting bottleneck. The new methodology does not require any calculations, statistics, or time measurements. Hence, the method is suited for practical use by shop floor supervisors and clerks. The direct observation of the bottleneck also gives additional information about the underlying causes of the bottlenecks, simplifying the improvement of the system capacity. Extensive field testing of the method received positive feedback not only from management but also from shop floor operators. The method is already in use at the Robert Bosch GmbH, where it is known as the bottleneck walk.

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Section: Active Period Methodsmentioning

confidence: 99%

Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk

2015

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“…It is done by checking the simulation, analyzing the results and trying to find bottlenecks and shifting bottlenecks of the processes [19]. These bottlenecks are the limitations of the system that constrain the performance, impeding in most of the cases a greater or improved outcome and revenue.…”

Section: Methodsmentioning

confidence: 99%

Production logistics design and development support through simulation-based optimization (WIP)

Zúñiga

Moris

Syberfeldt

2016

2016 Summer Computer Simulation Conference (SCSC 2016)

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Manufacturing sectors in Sweden have a long history that leads to common non-optimized flows on the shop floor. Especially when having a really high product mix and a low-volume of customized products, a great deal of effort with respect to flow optimization is needed to stay present and compete in the globalized market. The goal of this project is to support the design and development of the implementation of new production systems and logistics flows considering the shop floor plant layout of a Swedish middle-size water pumps factory. In this paper, with the help of different types of simulation models and optimization, some results of a new technologically adapted production line are analyzed and relevant information and potential improvements in the production are found. The further development of optimization studies using the exiting simulation models is stated as ongoing and future work. The obtained and potential results can serve for decision makers and stakeholders to apply changes and adaptations in the system considering the mid and long term goals of the company.

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“…The active period method was developed by [10], [11]. In this method, a process is considered active whenever the process is not waiting for parts or material.…”

Section: The Active Period Methodsmentioning

confidence: 99%

A Quantitative Comparison of Bottleneck Detection Methods in Manufacturing Systems with Particular Consideration for Shifting Bottlenecks

Roser

Nakano

2015

Advances in Production Management Systems: Innovative Production Management Towards Sustainable Growth

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Shifting bottleneck detection

Cited by 111 publications

References 9 publications

Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk

Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk

Production logistics design and development support through simulation-based optimization (WIP)

A Quantitative Comparison of Bottleneck Detection Methods in Manufacturing Systems with Particular Consideration for Shifting Bottlenecks

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