Messung von Flexibilität in der Produktion

Bellmann, Klaus; Himpel, Frank; Böhm, Andreas

doi:10.1007/978-3-8349-8401-2_11

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…Routing flexibility can be defined as "the ability of a manufacturing system to produce a part by alternate routes through the system" and can be achieved by having multi-purpose stations and allowing individual product routes. On the other hand, operation flexibility describes "the ability of a part to be produced in a different way" and thus refers to product-side flexibility [16,17].…”

Section: State Of the Art: Simulation Studies Of Assembly Flexibilisa...mentioning

confidence: 99%

Simulation-based potential analysis of line-less assembly systems in the automotive industry

Rachner¹,

Kaven²,

Voet³

et al. 2022

Preprint

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Increasing product variety, shorter product life cycles, and the ongoing transition towards electro-mobility demand higher flexibility in automotive pro-duction. Especially in the final assembly, where most variant-dependent pro-cesses are happening, the currently predominant concept of flowing line assem-bly is already been pushed to its flexibility limits. Line-less assembly systems break up the rigid line structures by enabling higher routing and operational flex-ibility using individual product routes that are takt-time independent. Hybrid ap-proaches consider the combination of line and matrix-structured systems to in-crease flexibility while maintaining existing structures.<br>Such system changes require a high planning effort and investment costs. For a risk-minimized potential evaluation, discrete-event simulation is a promising tool. However, the challenge is to model the existing line assembly concept and line-less assembly for comparison.<br>In this work, a comprehensive scenario analysis based on real assembly sys-tem data is conducted to evaluate the potential of line-less assembly in the auto-motive industry. Within the simulation, an online scheduling algorithm for adap-tive routing and sequencing is used. Based on an automated experiment design, several system parameters are varied full-factorially and applied to different sys-tem configurations. Various scenarios considering worker capabilities, station failures, material availability, and product variants are simulated in a discrete-event simulation considering realistic assumptions. Results show that the throughput and utilization can be increased in the hybrid and line-less systems when assuming that the stations will have failures and the assumption of an un-changed order input.

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Section: State Of the Art: Simulation Studies Of Assembly Flexibilisa...mentioning

confidence: 99%

Simulation-based potential analysis of line-less assembly systems in the automotive industry

Rachner¹,

Kaven²,

Voet³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Volume flexibility is one of the main types of flexibility to respond to these ever increasing demand fluctuations [8] and thus one of the most important strategic instruments for the success of modern production systems. The general definition of volume flexibility corresponds to the ability to produce different output volumes profitable within a given maximum capacity of the production system [9][10][11]. Volume flexibility enables an adaption of the production output to the current market situation.…”

Section: Challenge In Planning At Fluctuating Demandmentioning

confidence: 99%

Identification of Influencing Variables of Demand-oriented Measures for Volume Flexibility

Schmidt¹,

Nyhuis²

2016

ujm

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The appropriate response to fluctuating demand situations is a major challenge manufacturing companies currently have to face these days. In particular, the selection of appropriate measures to adapt the production system efficiently is difficult. In order to handle an expected demand fluctuation, the goal is to reply the question about the optimal adjustment time of production systems in combination with measures of capacity synchronization. By the identification of influencing variables this optimum can be found for individual measures as well as for measure combinations. With the help of dynamic capacity envelopes, a pragmatic visualization is provided as well.

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Simulation-Based Potential Analysis of Line-Less Assembly Systems in the Automotive Industry

Rachner

Kaven

Voet³

et al. 2023

Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2022

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Increasing product variety, shorter product life cycles, and the ongoing transition towards electro-mobility demand higher flexibility in automotive production. Especially in the final assembly, where most variant-dependent processes are happening, the currently predominant concept of flowing line assembly is already been pushed to its flexibility limits. Line-less assembly systems break up the rigid line structures by enabling higher routing and operational flexibility using individual product routes that are takt-time independent. Hybrid approaches consider the combination of line and matrix-structured systems to increase flexibility while maintaining existing structures. Such system changes require a high planning effort and investment costs. For a risk-minimized potential evaluation, discrete-event simulation is a promising tool. However, the challenge is to model the existing line assembly concept and line-less assembly for comparison. In this work, a comprehensive scenario analysis based on real assembly system data is conducted to evaluate the potential of line-less assembly in the automotive industry. Within the simulation, an online scheduling algorithm for adaptive routing and sequencing is used. Based on an automated experiment design, several system parameters are varied full-factorially and applied to different system configurations. Various scenarios considering worker capabilities, station failures, material availability, and product variants are simulated in a discrete-event simulation considering realistic assumptions. Results show that the throughput and utilization can be increased in the hybrid and line-less systems when assuming that the stations will have failures and the assumption of an unchanged order input.

show abstract

Messung von Flexibilität in der Produktion

Cited by 7 publications

References 23 publications

Simulation-based potential analysis of line-less assembly systems in the automotive industry

Simulation-based potential analysis of line-less assembly systems in the automotive industry

Identification of Influencing Variables of Demand-oriented Measures for Volume Flexibility

Simulation-Based Potential Analysis of Line-Less Assembly Systems in the Automotive Industry

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