Journal ArticleDOI
Concurrent Line-Balancing, Equipment Selection and Throughput Analysis for Multi-Part Optimal Line Design
TLDR
A Genetic Algorithm formulation is utilized to capture in string form the configuration and task allocation for a multiple parts line (MPL) and minimal ratio of cost to throughput is used as the criterion for the fitness function.Abstract:
2 Department of Mechanical Engineering University of British Columbia Vancouver, B.C., V6T 1Z4 Abstract Optimal line design seeks to identify the best configuration of resources and allocation of tasks to satisfy criteria such as maximum throughput or minimum cost. Coupling several levels of the problem together provides a more comprehensive solution but can be difficult because of problem formulation and computational complexities. In this paper we present an approach to coupling line-balancing, machine selection (including buffer) and throughput analysis for manufacturing lines that produce multiple parts. We utilize a Genetic Algorithm formulation to capture in string form the configuration and task allocation for a multiple parts line (MPL). Minimal ratio of cost to throughput is used as the criterion for the fitness function. An analytical throughput analysis engine is called during the evaluation of each solution to size and locate buffers, and to consider the effects of machine breakdown. This method is effectively used during the initial stages of line design to guide manufacturing engineering in evaluating different line design options.read more
Citations
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Journal ArticleDOI
Assembly system design and operations for product variety
S.J. Hu,Jeonghan Ko,L. Weyand,Hoda A. ElMaraghy,Terje K. Lien,Yoram Koren,Helmut Bley,George Chryssolouris,Nabil Nasr,Moshe Shpitalni +9 more
TL;DR: A review of the state of the art research in the areas of assembly system design, planning and operations in the presence of product variety is presented in this article, where methods for assembly representation, sequence generation and assembly line balancing are reviewed and summarized.
Journal ArticleDOI
Reconfigurable manufacturing systems: Principles, design, and future trends
Yoram Koren,Xi Gu,Weihong Guo +2 more
TL;DR: In this article, the design and operational principles for reconfigurable manufacturing systems (RMSs) are formulated and a state-of-the-art review of the current design and operations methodologies of RMSs is provided.
Journal ArticleDOI
Scalability planning for reconfigurable manufacturing systems
Wencai Wang,Yoram Koren +1 more
TL;DR: In this article, a scalability planning methodology for reconfigurable manufacturing systems that can incrementally scale the system capacity by reconfiguring an existing system is presented, which is validated through a case study of a CNC-based automotive cylinder head machining system.
Journal ArticleDOI
Value creation through design for scalability of reconfigurable manufacturing systems
Yoram Koren,Wencai Wang,Xi Gu +2 more
TL;DR: A mathematical method that maximises the system throughput after reconfiguration is proposed, and an industrial case is presented to validate the method and offer a set of principles for system design for scalability to guide designers of modern manufacturing systems.
Journal ArticleDOI
Autonomous Processes in Assembly Systems
TL;DR: In this article, the authors present the general principles of autonomy and the proposed concepts, methods and technologies to realize autonomous processes in assembly systems, different approaches for design and autonomous operation of assembly, and future trends towards fully autonomous components of an assembly system as well as autonomous parts and products.
References
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MonographDOI
Genetic algorithms and engineering optimization
Mitsuo Gen,Runwei Cheng +1 more
TL;DR: This paper presents a meta-modelling framework that automates the very labor-intensive and therefore time-heavy and therefore expensive and labor-heavy process of designing and solving optimization problems.
Book
Manufacturing systems engineering
TL;DR: In this article, the authors provide a description of some of the phenomena in material flow in manufacturing systems, including the effects of unreliability, variability, and finite storage space on system performance; and control-theoretic methods for operating advanced manufacturing systems to obtain high performance.
Journal ArticleDOI
A comprehensive literature review and analysis of the design, balancing and scheduling of assembly systems
Soumen Ghosh,Roger J. Gagnon +1 more
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.
Journal ArticleDOI
A Graph Matching Approach to Optimal Task Assignment in Distributed Computing Systems Using a Minimax Criterion
Chien-Chung Shen,Wen-Hsiang Tsai +1 more
TL;DR: A graph matching approach for solving the task assignment problem encountered in distributed computing systems with a cost function defined in terms of a single unit, time, and a new optimization criterion, called the minimax criterion, based on which both minimization of interprocessor communication and balance of processor loading can be achieved.
Journal ArticleDOI
Evolution and Future Perspectives of CAPP
TL;DR: An overview of the major development thrust in CAPP is presented along with some of the evolving trends and challenges such as rapid, generic, dynamic and/or distributed process planning as discussed by the authors.