Mixed Model Line Balancing with Smoothed Station Assignments
TL;DR: A modification to mixed model line balancing algorithms can be used so that the stations are loaded more consistently on a model by model basis as well, which allows mixed modelline balancing to become a plausible tool for batched assembly line processes.
Abstract: The general practice in mixed model assembly line balancing is to assign work to stations in a manner that each station has an equal amount of work on a daily or shift basis. This paper shows how a modification to mixed model line balancing algorithms can be used so that the stations are loaded more consistently on a model by model basis as well. In addition, the modification now allows mixed model line balancing to become a plausible tool for batched assembly line processes. The procedure is general in nature and is applicable to most line balancing algorithms.
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TL;DR: The developments in GALBP research is surveyed in order to describe and solve more realistic generalized problems (GALBP) and to survey the developments in assembly line balancing research.
1,020 citations
TL;DR: To ease communication between researchers and practitioners, a classification scheme of assembly line balancing is provided, which is a valuable step in identifying remaining research challenges which might contribute to closing the gap.
694 citations
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...…(1976) [tsto | prob | m] M Süer (1998) [ | pline, pstat | m, c, score] HS Suresh and Sahu (1994), Suresh et al. (1996) [tsto | | SSLline, score] HM Thomopoulos (1970) [mix | |m, SSLstat] HS Tsujimura et al. (1995) [tsto | | score] M, HM Ugurdag et al. (1997) [ | | c, SSLline] M, HS, HI…...
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01 Jan 2006TL;DR: In this paper, a classification scheme of assembly line balancing problems is proposed to ease communication between researchers and practitioners, and a valuable step in identifying remaining research challenges which might contribute to closing the gap between requirements of real configuration problems and the status of research.
Abstract: Assembly lines are special flow-line production systems which are of great importance in the indus-trial production of high quantity standardized commodities. Recently, assembly lines even gained importance in low volume production of customized products (mass-customization). Due to high capital requirements when installing or redesigning a line, its configuration planning is of great rele-vance for practitioners. Accordingly, this attracted attention of plenty researchers, who tried to sup-port real-world configuration planning by suited optimization models (assembly line balancing prob-lems). In spite of the enormous academic effort in assembly line balancing, there remains a consider-able gap between requirements of real configuration problems and the status of research. To ease communication between researchers and practitioners, we provide a classification scheme of assem-bly line balancing. This is a valuable step in identifying remaining research challenges which might contribute to closing the gap.
690 citations
TL;DR: In this article, the authors present a comprehensive review and analysis of the assembly line balancing literature at both the strategic and tactical levels, focusing on qualitative and quantitative factors that could impact the design, balancing and scheduling of assembly systems.
Abstract: SUMMARY This paper reports the results of a comprehensive review and analysis of the assembly line balancing literature. Quantitative developments and qualitative issues are addressed at both the strategic and tactical levels. The numerous quantitative and qualitative factors which the literature mentions could impact the design, balancing and scheduling of assembly systems are organized into an eight-level hierarchical, factor/decision taxomony. This comprehensive taxonomy is used to assess our progress in assembly system design and operation. Finally, from the results of the literature review and progress assessment, suggestions for future research on socio-technical assembly systems are offered.
551 citations
TL;DR: A theoretical basis for scheduling mixed-model assembly lines and Just-In-Time JIT production systems is developed, and new scheduling algorithms and heuristics are presented.
Abstract: Mixed-model assembly lines are used to produce many different products without carrying large inventories. The effective utilization of these lines requires that a schedule for assembling the different products be determined. For Just-In-Time JIT production systems, which require producing only the necessary products in the necessary quantities at the necessary times, the objective is to keep a constant rate of usage of all parts used by the line. This is called levelling or balancing the schedule. This paper develops a theoretical basis for scheduling these systems, and presents new scheduling algorithms and heuristics.
445 citations
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TL;DR: The purpose of the present paper is to set forth an enumeration procedure for solving one of the problems concerned with setting up production lines and to clarify the assumptions in its statement.
Abstract: In a recent article Salveson, M. E. 1955. The assembly line balancing problem. J. Indust. Engrg.VI 18--25., M. E. Salveson discussed various problems concerned with setting up production lines. The purpose of the present paper is to set forth an enumeration procedure for solving one of these problems. The reader is referred to Salveson's article for a detailed discussion of the circumstances in which this problem arises and for remarks concerning the assumptions in its statement.
290 citations
TL;DR: This paper describes a procedure of adapting single-model line balancing techniques to mixed-model schedules and introduces a sequencing procedure for determining the order in which models are to flow down the line.
Abstract: Mixed-model assembly occurs when more than one model of the same general product are intermixed on one assembly line. The amount of work required to assemble units can vary from model to model, creating an uneven flow of work along the line. This paper describes a procedure of adapting single-model line balancing techniques to mixed-model schedules. The paper also introduces a sequencing procedure for determining the order in which models are to flow down the line. Because the line balancing and sequencing procedures consider a wide variety of factors, they are applicable to many types of assembly lines.
287 citations
TL;DR: Linear-programming solutions to the assembly-line balancing problem are offered in two forms: integer and linear programming as discussed by the authors. But these solutions depend on work recently presented on integer solutions to linear programming problems.
Abstract: Linear-programming solutions to the assembly-line balancing problem are offered in two forms. Feasible solutions depend on work recently presented on integer solutions to linear-programming problems. As yet, the computation involved for a practical problem would be quite large.
227 citations
9 citations