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Simulation-Based Optimization of Sequencing Buffer Allocation in Automated Storage and Retrieval Systems for Automobile Production

Urnauer, Christian and Bosch, Eva and Metternich, Joachim (2020):
Simulation-Based Optimization of Sequencing Buffer Allocation in Automated Storage and Retrieval Systems for Automobile Production.
In: Winter Simulation Conference WSC, 8-11 Dec. 2019, National Harbor, Maryland (USA), pp. 1602-1611, DOI: 10.1109/WSC40007.2019.9004768,
[Conference or Workshop Item]

Abstract

In production control with a stable order sequence, the assembly order is fixed in the form of the so-called pearl chain. However, parallelism and instabilities in the production process cause scrambling in the order sequence. The stability of the order sequence can be increased by using sequencing buffers between the individual production units. In the automobile industry, all sequencing buffers frequently share one large automated storage and retrieval system (AS/RS) with limited capacity. In existing approaches for dimensioning sequencing buffers, this shared capacity restriction is not considered, even though the optimal distribution of buffer capacity might be an important lever for increasing the sequence stability. Therefore, the focus of this paper is the identification of the optimal capacity distribution between several sequencing buffers using the same storage area. A greedy simulation-based improvement heuristic is developed which makes it possible to find promising solutions with a practical and intuitive optimization approach.

Item Type: Conference or Workshop Item
Erschienen: 2020
Creators: Urnauer, Christian and Bosch, Eva and Metternich, Joachim
Title: Simulation-Based Optimization of Sequencing Buffer Allocation in Automated Storage and Retrieval Systems for Automobile Production
Language: English
Abstract:

In production control with a stable order sequence, the assembly order is fixed in the form of the so-called pearl chain. However, parallelism and instabilities in the production process cause scrambling in the order sequence. The stability of the order sequence can be increased by using sequencing buffers between the individual production units. In the automobile industry, all sequencing buffers frequently share one large automated storage and retrieval system (AS/RS) with limited capacity. In existing approaches for dimensioning sequencing buffers, this shared capacity restriction is not considered, even though the optimal distribution of buffer capacity might be an important lever for increasing the sequence stability. Therefore, the focus of this paper is the identification of the optimal capacity distribution between several sequencing buffers using the same storage area. A greedy simulation-based improvement heuristic is developed which makes it possible to find promising solutions with a practical and intuitive optimization approach.

Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW)
16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW) > CiP Center for industrial Productivity
Event Title: Winter Simulation Conference WSC, 8-11 Dec. 2019
Event Location: National Harbor, Maryland (USA)
Date Deposited: 03 Mar 2020 06:42
DOI: 10.1109/WSC40007.2019.9004768
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