Matrix Production Systems - Requirements and Influences on Logistics Planning for Decentralized Production Structures

Abstract

In the context of the digital transformation of industry and within the framework of Industrie 4.0 and Factory Planning 4.0, new production-organizational principles with decentralized, modular and freely linked production cells are increasingly being discussed. The principle of matrix production with categorized and standardized workstations offers an extremely versatile production environment. It can be used to meet the challenge of an increasing number of product variants in variable quantities. This concept is predominantly considered from a theoretical point of view. Therefore, many aspects regarding the planning and operation of such systems are still up to debate. With the focus on logistics processes, this paper describes the requirements for such flexible, dynamic routing and self-organizing resources in material supply. Furthermore, they are investigated in a generic, conceptual model for a matrix production. Based on a reference scenario from the automotive industry, classical parameters from logistics and production organization are taken up. The influences with regard to decentralized material supply concepts and structural differences to flow production are shown by the results of simulation experiments with the generic model.

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“…A detailed comparison of the respective forms of production organisation and their advantages and disadvantages can be found in Schmidtke et al (2021). This paper focuses on assessing the resilience of matrix production systems and the influences of different material supply strategies and requirements for smart order control and logistics processes.…”

“…It will allow to successively investigate different material supply strategies with regard to the resilience and performance of the production system. In reflection of Schmidtke et al (2021), the process sequence as well as the distribution of different product variants within the use case has been adapted and validated in dialogue with experts from the automotive sector. The process model was discussed and edited in two interviews, each interview including members of German automobile manufacturers (from the areas of production and program planning).…”

“…While a matrix organisation with one workstation per assembly task was realized in Schmidtke et al (2021), this research paper is building upon the findings and a 4x4 grid with redundant workstations (several stations of the same type) is implemented. Labourintensive stations (comparatively long process times, many sub-processes) have been placed in duplicate, flexible working stations at the center, and optional working stations rather at the edge of the structure.…”

“…Concerning the logistics processes, the average utilization of the AGVs for material and order transport has been differentiated according to the scenarios in Figures 9 and 10. It can be seen that the utilization of the AGVs linked to the production order show a significantly higher utilization than in Schmidtke et al (2021). The process, transport and waiting times are included in the utilization values, with the latter accounting for a proportion of around 20% and a need to be optimized.…”

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“…Thus, the system can convert itself, scale, and, control capacity utilization and bottlenecks. A sketch of the matrix production can be seen in Fig 3 . As this concept is relatively new, it is suggested that its control logic is an open research question [30].…”