A methodology for facilitating reconfiguration in manufacturing: the move towards reconfigurable manufacturing systems

Galan, R.; Racero, Jesús; Eguía, Ignacio; Canca, David

doi:10.1007/s00170-006-0461-2

Cited by 32 publications

(21 citation statements)

References 12 publications

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“…Mathematical models, descriptive procedures and hierarchical clustering are some of the most common methods (Galan et al 2007b). ALC algorithm is one of the hierarchical clustering algorithms which has been used by different researchers and proved to be efficient (Yin and Yasuda 2006;Galan et al 2007a). In the present work, the ALC algorithm is applied for grouping product variants and subsequently, a new policy is proposed for sequencing them.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Some methods have been proposed for reconfigurable manufacturing systems (e.g. Galan et al 2007aGalan et al , 2007bGoyal, Jain, and Jain 2013). In any of the studied systems, there are different criteria based of which the similarity coefficients have been developed; the most common criteria are operation similarity (e.g.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Grouping results are used to find the best sequence of product variants. In this algorithm, products with higher coefficient of similarity are grouped together (Vakharia and Wemmerlöv 1995;Galan et al 2007aGalan et al , 2007bEguia et al 2011Eguia et al , 2013. A submatrix consisting of grouped and ungrouped products is then constructed.…”

Section: Alc Algorithmmentioning

confidence: 99%

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Grouping and sequencing product variants based on setup similarity

Navaei

ElMaraghy

2016

International Journal of Computer Integrated Manufacturing

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In some flow shop environments, set-up times between product variants have an important role and are considered more significant than processing times. Therefore, optimal sequence of various product variants is based on improving machine utilisation. A flow shop environment which addresses the set-up criterion where bypassing is not permitted is considered in this paper. A mathematical model is developed and solved using GAMS optimisation software. The non-linear model is then linearised to find exact solutions. A new policy for sequencing product variants is proposed and compared to the exact solutions obtained from GAMS. This sequencing policy capitalises on the commonality between product variants to increase sequencing efficiency. The developed sequencing policy is simple and easy to apply in manufacturing environments. A case study in the label stickers making industry is used for demonstration and validation. Numerical results indicate that the proposed sequencing policy is capable of finding good, and exact solutions in some cases, in less than one second for all studied small, medium and large problem sizes. The solutions obtained using the proposed sequencing policy has a total average of 1.2% relative error which is quite comparable with the solutions obtained using GAMS.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

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Grouping and sequencing product variants based on setup similarity

Navaei

ElMaraghy

2016

International Journal of Computer Integrated Manufacturing

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“…The different operating costs of disassembling products in a RDS can be defined as in (Galan, Racero, Eguia & Canca, 2007), i.e. :…”

Section: Product Families Selection and Sequencingmentioning

confidence: 99%

A methodological approach for designing and sequencing product families in Reconfigurable Disassembly Systems

Eguía

Lozano

Racero

et al. 2011

JIEM

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Abstract:Purpose: A Reconfigurable Disassembly System (RDS) represents a new paradigm of automated disassembly system that uses reconfigurable manufacturing technology for fast adaptation to changes in the quantity and mix of products to disassemble. This paper deals with a methodology for designing and sequencing product families in RDS.Design/methodology/approach: The methodology is developed in a two-phase approach, where products are first grouped into families and then families are sequenced through the RDS, computing the required machines and modules configuration for each family. Products are grouped into families based on their common features using a Hierarchical Clustering Algorithm. The optimal sequence of the product families is calculated using a Mixed-Integer Linear Programming model minimizing reconfigurability and operational costs.Findings: This paper is focused to enable reconfigurable manufacturing technologies to attain some degree of adaptability during disassembly automation design using modular machine tools.Research limitations/implications: The MILP model proposed for the second phase is similar to the well-known Travelling Salesman Problem (TSP) and therefore its complexity grows exponentially with the number of products to Journal of Industrial Engineering and Management -http://dx.doi. org/10.3926/jiem.2011.v4n3.p418-435 -419 -disassemble. In real-world problems, which a higher number of products, it may be advisable to solve the model approximately with heuristics.Practical implications: The importance of industrial recycling and remanufacturing is growing due to increasing environmental and economic pressures. Disassembly is an important part of remanufacturing systems for reuse and recycling purposes. Automatic disassembly techniques have a growing number of applications in the area of electronics, aerospace, construction and industrial equipment. In this paper, a design and scheduling approach is proposed to apply in this area.Originality/value: This paper presents a new concept called Reconfigurable Disassembly System, which represents disassembly systems with reusability, scalability, agility and reconfigurability features. These features and some specific costs are considered as part of the proposed methodology.

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“…However, little focus has been given on the modularity of Reconfigurable Machine Tool (RMT). RMS having its core component Reconfigurable Machine Tool (RMT).The Reconfigurable Machine Tools are developed as modular machines having different modules (Koren,1999;Koren,2005;Galan et al,2007;Goyal et al,2011).The RMTs having basic and auxiliary modules. The basic modules are such as base, slide ways and auxiliary modules are such as spindle heads, tool changer which are relatively smaller and lighter than the basic modules.…”

Section: Introductionmentioning

confidence: 99%