Mixed Model Line Balancing with Smoothed Station Assignments

Thomopoulos, Nick T.

doi:10.1287/mnsc.16.9.593

Cited by 198 publications

(71 citation statements)

References 4 publications

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“…In this condition, the well-known mixed model assembly lines (MAL) are used to produce various models of accessories on the same line. The mixed model assembly line balancing problem (MALBP), firstly introduced by Thomopoulos [6,7]. In this regard, researches have been published, but unfortunately, none of them considered the impact of variability on the task times.…”

Section: Literature Reviewmentioning

confidence: 99%

Dynamic TOC-based approach for planning and control of accessories in MTO environments

Keyvani

Lotfi

2018

Scientia Iranica

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In make-to-order systems, customers expect to have more freedom to choose the accessories. But demand variations and internal disorders induce some uncertainties. Hence, a different inventory system is needed for such items that dynamically manage those variations. In this paper, a dynamic approach based on the theory of constraints is proposed for inventory planning and control of accessories. First, the risk of processing time variation is balanced while keeping cycle time balancing. Second, the ribbons of buffer control charts are determined by a buffer planning model in which a multi-criteria ABC analysis is used to apply different customer service levels.To detect demand variations and monitor the buffer, trend of consumption in each monitoring window is carefully traced. Also, simulation-based procedures are recommended to update control ribbons. Comparing the performance of proposed approach to common methods using the data of an automobile company as well as several random test problems confirms that it can significantly reduce the costs and improve the efficiency of inventory system.

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Section: Literature Reviewmentioning

confidence: 99%

Dynamic TOC-based approach for planning and control of accessories in MTO environments

Keyvani

Lotfi

2018

Scientia Iranica

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“…Thomopoulos [9], Dar-El and Cother [10], and Dar-El and Cucuy [11] focused on minimizing line length and proposed an integer programming and heuristic procedure to solve the problem. Okamura and Yamashina [12] o ered a heuristic approach for minimizing line stoppages problem.…”

Section: Literature Reviewmentioning

confidence: 99%

Sequencing of mixed models on U-shaped assembly lines by considering effective help policies in make-to-order environment

2017

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Abstract. Mixed-Model Assembly Line (MMAL) is a type of production line where a variety of products' models similar to products' characteristics are assembled in the same line. Many manufacturers tend to use mixed-model assembly line in their production lines, since this policy makes it possible to assemble various products in the Make-To-Order (MTO) environment. In this research, the sequence of U-type mixed-model assembly line is achieved through considering downstream help and storage of kits as e ective help policies for reducing total line stoppages and tardiness in delivery time of products to customers. Since this problem is NP-hard, hybrid GA-Beam search algorithm is developed to solve the problem. Numerical experiments are used to evaluate the performance and e ectiveness of the proposed algorithm. To the best of our knowledge, this is the rst study that considers getting help from downstream worker or using storehouse of kits, which has ready-toassemble parts in the conditions that workers cannot complete the remained task in the work horizon.

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“…Algoritma-2 için akış diyagramı Şekil 2'de gösterilmiştir [53]. Verilen bir (c, K) kombinasyonunda, iş yükü değişimleri ve fazla iş yükü dengesizliklerini pürüzsüzleştirmek amacıyla Algoritma-2' de Thomopoulos [6] tarafından tanımlanmış amaç ifadesi kullanılmıştır:…”

Section: Pürüzsüzleştirme (Smoothing)unclassified

“…MALBP ile ilgili ilk çalışma Thomopoulos [5] tarafından yapılmıştır. Yine Thomopoulos [6], bu çalışmasını pürüzsüz istasyon atamalı karışık-modelli montaj hattı dengeleme konusunda devam ettirmiştir. Macaskill [7], karışık-modelli hatlar için üretim hattı dengeleri üzerinde çalışmış ve hat etkinliğini maksimize edecek şekilde istasyonlara iş gruplarının atamasını gerçekleştirmiştir.…”

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Yasak Arama Algori̇tmasina Dayali Pürüzsüzleşti̇rme Yaklaşimi İçeren Karişik-Modelli̇ Montaj Hatti Dengeleme

Yağmahan¹,

Emel²

2015

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖZETKarışık-modelli montaj hatları, çeşitli modellerde talep edilen ürünlerin daha ucuz olacak şekilde montajı için kullanılır. Bu tür hatlar tasarlandığında, montaj hattının zaman, yer, konum vb. kısıtlar altında daha verimli ve düzenli bir şekilde çalışabilmesi için, istasyonlardaki işlemlerin dengelenmesi gerekir. Bu makalede, karışık-modelli montaj hattı dengeleme problemi için belli bir çevrim süresine karşılık istasyon sayısının minimizasyonunu amaçlayan bir sezgisel algoritma geliştirilmiştir. Ayrıca önerilen bir yasak arama algoritmasına dayalı pürüzsüzleştirme yaklaşımı ile istasyonlarda modellere ait ortak işlemlerdeki süre farklılıklarından kaynaklanan dengesizlikler giderilmeye çalışılmıştır.Anahtar Kelimeler: Karışık-model, montaj hattı dengeleme, yasak arama, pürüzsüzleştirme MIXED-MODEL ASSEMBLY LINE BALANCING WITH SMOOTHING APPROACH BASED ON TABU SEARCH ALGORITHM ABSTRACTMixed-model assembly lines are needed for the assembly of products with a variety of models at comparatively lower costs. The design of such lines requires the work to be done at stations well balanced, satisfying the constraints such as time, space and location for optimal productivity and efficiency. This paper presents a heuristic algorithm for the mixed-model assembly line balancing problem to minimize the number of stations for a given cycle time. The proposed algorithm further reduces time discrepancies among stations due to differences in times for common operations of different models by using a smoothing approach which is based on the tabu search algorithm.

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Mixed Model Line Balancing with Smoothed Station Assignments

Cited by 198 publications

References 4 publications

Dynamic TOC-based approach for planning and control of accessories in MTO environments

Dynamic TOC-based approach for planning and control of accessories in MTO environments

Sequencing of mixed models on U-shaped assembly lines by considering effective help policies in make-to-order environment

Yasak Arama Algori̇tmasina Dayali Pürüzsüzleşti̇rme Yaklaşimi İçeren Karişik-Modelli̇ Montaj Hatti Dengeleme

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