Download or read book The Assessment of a Rule based Approach for the Formation of Manufacturing Cells written by Saad Mohammed Rasheed Aldousari and published by . This book was released on 1993 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular Manufacturing is the focus of considerable interest from practitioners and academics alike. One of the problems in the design of Cellular Manufacturing Systems is cell formation, which is essentially the identification of part families and machine groups. The most difficult problem is the formulation of part families and the associated cells, taking into account the need to form realistic cells of manageable size and the existence of any bottle-necks. This research assesses the appropriateness of rule-based systems for the implementation of three different techniques for formulating product families and associated cells. These three techniques are OpitzClassification and Coding, Rank Order Clustering and Direct Clustering Algorithm, and Nuclear Synthesis. Rules are developed and implemented using real factory data to illustrate the validity of rule-based system for cell formation and the applicability of different procedures to overcome the cell's bottle-neck problem. Briefly, this problem can be resolved by one of the following procedures: l. Assign the bottle-neck parts to an alternative machine. 2. Devise an alternative routing for the bottle- neck parts. 3. Subcontract the bottle-neck parts internally to another cell or cells in the shop-floor. 4. Subcontract the bottle-neck parts to another factory. 5. Redesign the bottle-neck parts to utilize the available machine types. 6. Duplicate the bottle-neck machines or purchase their alternatives. This thesis demonstrates the feasibility of using the rule-based system to.

Download or read book Cellular Manufacturing Systems written by Gürsel A. Süer and published by . This book was released on 2017-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chapters included in this book represent the work from the US, Canada, Japan, China, India, Iran, Netherlands, Turkey, Slovakia, and Portugal. The book attempts to cover the cellular manufacturing area from various angles. In terms of solution techniques, different approaches such as heuristics, mathematical models, networks models, genetic algorithm approaches, artificial neural networks, knowledge-based algorithms, a space search algorithm, simulated annealing, fuzzy concepts, analytic hierarchy processes and simulation are included in the book. As for performance measures, most chapters target a single objective whereas some others cover multiple objectives. In terms of the complexity of the problems, the authors divide them into simpler single phase problems versus more complex problems that require multiple-phase solutions. Most of the chapters discuss deterministic problems. On the other hand, a few of the chapters focus on stochastic cases. There are many new concepts and solution approaches covered in this book. The details of the material coverage is listed in the following paragraphs. The book starts with the evolution of cellular manufacturing. In terms of design-related issues, it covers the application of math modeling for cell formation, family and subfamily formation, production system selection, formation and evaluation of design alternatives, machine layout, dynamic cells, virtual cells, cell formation considering alternative routes, remainder cells, cell formation with product of life cycle considerations, demand-variability based cell formation, layered cellular design, assembly cells and a recent Japanese proposition called SERU cells. All types of cells, namely labor-intensive cells, machine-intensive cells and robotic cells are covered in the book. In terms of operational and control issues, human skills, manpower allocation, cell size determination, dispatching rules, parallel machine scheduling, flowshop scheduling, re-entrant flowshop scheduling, flexible job shop scheduling, assembly line balancing, process planning and scheduling, multiple-resource scheduling, cell loading and cell scheduling, synchronized flow, planning concepts such as period batch control, polka, Kanban, conwip and more are discussed. Cases studies include electromechanical assembly, bicycle manufacturing, igniter assembly system, jewelry manufacturing and semi-conductor industry. We believe that this book will be of value to students, researchers, academicians and practitioners.

Download or read book Cell Formation in Industrial Engineering written by Boris Goldengorin and published by Springer Science & Business Media. This book was released on 2013-08-23 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a development of optimal, flexible, and efficient models and algorithms for cell formation in group technology. Its main aim is to provide a reliable tool that can be used by managers and engineers to design manufacturing cells based on their own preferences and constraints imposed by a particular manufacturing system. This tool could potentially lower production costs by minimizing other costs in a number of areas, thereby increasing profit in a manufacturing system. In the volume, the cell formation problem is considered in a systematic and formalized way, and several models are proposed, both heuristic and exact. The models are based on general clustering problems, and are flexible enough to allow for various objectives and constraints. The authors also provide results of numerical experiments involving both artificial data from academic papers in the field and real manufacturing data to certify the appropriateness of the models proposed. The book was intended to suit the broadest possible audience, and thus all algorithmic details are given in a detailed description with multiple numerical examples and informal explanations are provided for the theoretical results. In addition to managers and industrial engineers, this book is intended for academic researchers and students. It will also be attractive to many theoreticians, since it addresses many open problems in computer science and bioinformatics.

Download or read book Handbook of Cellular Manufacturing Systems written by Shahrukh A. Irani and published by John Wiley & Sons. This book was released on 1999-04-15 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular manufacturing (CM) is the grouping of similar products for manufacture in discrete multi-machine cells. It has been proven to yield faster production cycles, lower in-process inventory levels, and enhanced product quality. Pioneered on a large scale by Russian, British, and German manufacturers, interest in CM methods has grown steadily over the past decade. However, there continues to be a dearth of practical guides for industrial engineers and production managers interested in implementing CM techniques in their plants. Bringing together contributions by an international team of CM experts, the Handbook of Cellular Manufacturing Systems bridges this gap in the engineering literature.

Download or read book A Framework and Design Method for Cell Formation in Cellular Manufacturing written by Asoo J. Vakharia and published by . This book was released on 1987 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Integrated Approach in the Design of Cellular Manufacturing Systems for Dynamic Production Requirements written by Fantahun Melaku Defersha and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Mathematical Approach for Designing Cell Formation in Cellular Manufacturing Systems written by Zahir Albadawi and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major steps in designing cellular manufacturing systems is to form cells. This involves identification of machine groups and part families. This thesis presents a new approach for optimally grouping the original set of machines into distinct uncorrelated cells. The approach involves two phases. In the first phase, machine cells are formed by applying factor analysis to the matrix of similarity coefficients. In the second phase, integer programming is used to assign parts to the cells. Because of its mathematical basis, the approach assures an optimal cell formation through the generation of uncorrelated cell clusters and the property of variance maximization. Using data set examples, the approach was found to perform very well in terms of a number of objective criteria. Moreover, the approach compares favorably to well-known existing methods. Other advantages such as efficient computational performance, and flexibility during cell formation make this approach very powerful.

Download or read book A Holistic Approach to Designing Cellular Manufacturing Systems written by Ka-Wing Lau and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "A Holistic Approach to Designing Cellular Manufacturing Systems" by Ka-wing, Lau, 劉家榮, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: ABSTRACT of THESIS A Holistic Approach to Designing Cellular Manufacturing Systems Submitted by Lau Ka Wing for the degree of Master of Philosophy at the University of Hong Kong in December 2004 Cellular Manufacturing Systems (CMSs), which are based on the concept of Group Technology (GT) have been recognized as an efficient and effective way of improving productivity in factories. In recent years, many researchers have tried to find ways of improving CMSs. Most of them have concentrated on distinguishing the part families and machine cells either simultaneously or individually, with the objective of minimizing total intercellular and intracellular part movements. This is known as a cell formation problem (CFP), and is a crucial process in the design of a CMS. Besides considering simple CFPs, some researchers have also focused on machine flexibility, in which parts are having alternative routings/process plans. However, it is very rare to consider the area of aggregation and disaggregation of machines during cell formation under some uncertain constraints. i The first part of this study addressed the design of a CFP holistically, taking into account machine flexibility as well as machine aggregation and disaggregation. Based on the availability of alternative routings, a method was proposed to generate an alternative solution for machine breakdown situations. The aim of this model was to form machine cells and part families so as to minimize the intercellular and intracellular part movements. In practice, as some components may not be finished within only one cell, they have to travel to other cells for further operations. Under such circumstances, intercellular part movement will occur. Different sequences of machine cells may result in different total intercellular movement units. A method was therefore proposed in the second part of the study for solving inter-cell layout problems (IECLPs) based on the results previously obtained. In this part, the impact of inter-cell layouts on minimizing intercellular movement units was studied. Parts moving within cells are called intracellular part movements. The sequences of machines within cells are very important from the point of view of reducing total intracellular part movement units. However, little research into these intra-cell layout problems (IACLPs) has been carried out. In the third part of the study, a method of handling all the sequences of machines within each existing cell and the sequence of the existing cells simultaneously was suggested. The aim of the solution to the intra-cell and inter-cell layout problem (IAECLP) ii addressed in this part of study was to minimize total intracellular and intercellular part movements. It is noted that IECLPs and IAECLPs are considered as quadratic assignment problems (QAPs). Since CFPs and QAPs have already been proved to be NP-complete, a genetic algorithm (GA) is employed through the study, as it performs better for complex optimization problems. The holistic approach proposed in this study will lead to the development of vertical integration from cell formation to intra-cell and inter-cell layouts. In other words, CMS designers will in future be able to consider IAECLPs as well as CFPs. An industrial case study was made of a steel member production company for demonstration purposes, and a comparative study ev

Download or read book Computer Control Abstracts written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Time Phased Manufacturing Cell Formation written by Harshvardhan Singh and published by . This book was released on 1999 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Flexible Cell Formation Approach for Cellular Manufacturing written by Hassan Mohamed Selim and published by . This book was released on 1993 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Making Manufacturing Cells Work written by Computer and Automated Systems Association of SME. and published by Society of Manufacturing Engineers. This book was released on 1992 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on over ten years of hands-on cell planning and installation worldwide this book analyzes FMC conceptual development, implementation, integration and future trends. Chapters include: the FMC Project Organization, Macro Facility Planning, Evaluating Alternative FMCs, Selling FMC Concepts to Top Management, Material Handling, Robot Applications, Quality Control Systems, Conducting Detail Design, Equipment Specification, Vendor Selection, and also Auditing Cell Performance.

Download or read book Manufacturing Cells written by C Moodie and published by CRC Press. This book was released on 1995-08-04 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular manufacturing has been an area of intense interest over the 1980s- 1990s. This work brings together some of the more significant papers on this key element of effective manufacturing systems from Taylor and Francis's "International Journal of Production Research". The papers are divided into key themes: historical and group technology issues; cell formation methods and strategies; machine layout methods; and scheduling. Each section is prefaced with a specially written essay from the editors, which analyses and critiques each paper within it.

Download or read book The Development and Evaluation of a Capacity constrained Multiobjective Cell Formation Heuristic Model written by Che-Yung Wei and published by . This book was released on 1987 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2003 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Comparison of Routing based Cell Formation Techniques written by Yong-Tae Park and published by . This book was released on 1991 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimization Approach to Cell Formation Using From between Chart and Development of GA Based Cellular Layouts written by Vijayaragavan Venkatasamy and published by . This book was released on 2009 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally GT problems focus on the grouping aspects and fail to integrate material handling part in facility layout design. It is necessary to consider the flow between machines while forming machine cells and evaluate grouping based on flow and operational load factors. But after forming cells, machines have to be placed inside a layout to minimize the material handling distance. There are not many approaches which consider the actual volume flow between machines while grouping and the related handling distances while placing machine cells. Typical GT based cell formation problems stop after grouping cells and evaluating the quality of the grouped cells. This thesis develops a comprehensive cell formation model, which integrates the GT philosophy with a facility layout problem using From-between flow matrix as a tool. This approach forms machine cells using a Non-Linear Integer Programming (NLIP) optimization model, assigns parts to cells using a new heuristic algorithm, evaluates cell grouping using a novel grouping efficiency measure and places machine cells in a layout space using a GA approach. Known case studies from literature are selected and tested using the developed procedure. Results obtained show a reduction in the intercell flow, high grouping efficiency and minimal material handling costs after machine placement when compared with the existing models.