An Approach to Design Focused Flexibility Manufacturing Systems Considering Evolving Market Needs PDF Download

Author: Anna Valente
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description

Author: Tullio Tolio
Publisher: Springer Science & Business Media
ISBN: 3540854142
Category : Technology & Engineering
Languages : en
Pages : 308

View

Book Description
In the last decade, the production of mechanical components to be assembled in final products produced in high volumes (e.g. cars, mopeds, industrial vehicles, etc.) has undergone deep changes due to the overall modifications in the way companies compete. Companies must consider competitive factors such as short lead times, tight product tolerances, frequent market changes and cost reduction. Anyway, companies often have to define production objectives as trade-offs among these critical factors since it can be difficult to improve all of them. Even if system flexibility is often considered a fundamental requirement for firms, it is not always a desirable characteristic of a system because it requires relevant investment cost which can jeopardize the profitability of the firm. Dedicated systems are not able to adapt to changes of the product characteristics while flexible systems offer more flexibility than what is needed, thus increasing investment and operative costs. Production contexts characterized by mid to high demand volume of well identified families of products in continuous evolution do not require the highest level of flexibility; therefore, manufacturing system flexibility must be rationalized and it is necessary to find out the best trade-off between productivity and flexibility by designing manufacturing systems endowed with the right level of flexibility required by the production problem. This new class of production systems can be named Focused Flexibility Manufacturing Systems-FFMSs. The flexibility degree in FFMSs is related to their ability to cope with volume, mix and technological changes, and it must take into account both present and future changes. The required level of system flexibility impacts on the architecture of the system and the explicit design of flexibility often leads to hybrid systems, i.e. automated integrated systems in which parts can be processed by both general purpose and dedicated machines. This is a key issue of FFMSs and results from the matching of flexibility and productivity that respectively characterize FMSs and Dedicated Manufacturing Systems (DMSs). The market share of the EU in the machine tool sector is 44%; the introduction of focused flexibility would be particularly important for machine tool builders whose competitive advantage is based on the ability of customizing their systems on the basis of needs of their customers. In fact, even if current production contexts frequently present situations which would fit well with the FFMS approach, tradition and know-how of machine tool builders play a crucial role. Firms often agree with the focused flexibility vision, nevertheless they decide not to pay the risk and efforts related to the design of this new system architecture. This is due also to the lack of well-structured design approaches which can help machine tool builders to configure innovative systems. Therefore, the FFMS topic is studied through the book chapters following a shared mission: "To define methodologies and tools to design production systems with a minimum level of flexibility needed to face, during their lifecycle, the product and process evolution both in the technological and demand aspects. The goal is to find out the optimal trade-off between flexibility and productivity". The book framework follows the architecture which has been developed to address the FFMS Design problem. This architecture is both broad and detailed, since it pays attention to all the relevant levels in a firm hierarchy which are involved in the system design. Moreover, the architecture is innovative because it models both the point of view of the machine tool builder and the point of view of the system user. The architecture starts analyzing Manufacturing Strategy issues and generating the possible demand scenario to be faced. Technological aspects play a key role while solving process plan problems for the products in the part family. Strategic and technological data becomes input when a machine tool builder performs system configuration. The resulting system configurations are possible solutions that a system user considers when planning its system capacity. All the steps of the architecture are deeply studied, developing methods and tools to address each subproblem. Particular attention is paid to the methodologies adopted to face the different subproblems: mathematical programming, stochastic programming, simulation techniques and inverse kinematics have been used. The whole architecture provides a general approach to implement the right degree of flexibility and it allows to study how different aspects and decisions taken in a firm impact on each other. The work presented in the book is innovative because it gives links among different research fields, such as Manufacturing Strategy, Process Plan, System Design, Capacity Planning and Performance Evaluation; moreover, it helps to formalize and rationalize a critical area such as manufacturing system flexibility. The addressed problem is relevant at an academic level but, also, at an industrial level. A great deal of industrial sectors need to address the problem of designing systems with the right degree of flexibility; for instance, automotive, white goods, electrical and electronic goods industries, etc. Attention to industrial issues is confirmed by empirical studies and real case analyses which are presented within the book chapters.

Author: Horst Tempelmeier
Publisher: John Wiley & Sons
ISBN: 9780471307211
Category : Computers
Languages : en
Pages : 498

View

Book Description
Now, this comprehensive and systematic overview of both the design models and quantitative solution methods for FMS support, configuration, and operation rectifies that problem. Students, production managers/planners, and FMS installation planners can now find everything they need in one authoritative and up-to-date source.

Author: Joseph Talavage
Publisher: CRC Press
ISBN: 1000103528
Category : Technology & Engineering
Languages : en
Pages : 377

View

Book Description
This book has been written for all those interested in flexible manufacturing systems (FMS) and other forms of computerized manufacturing systems (CMS). It deals with many aspects of the design, operation, and simulation of FMS and explains the origins of FMS.

Author: Awrad Khalid AlDuaij
Publisher:
ISBN:
Category : Flexible manufacturing systems
Languages : en
Pages : 0

View

Book Description
"Production demands are constantly changing at a fast pace. The demand for a shorter life cycle and customized products makes it more difficult for factories to adapt. To stay competitive, factories need to be flexible in embracing those continuous changes. Since the second half of the last century, several advanced manufacturing systems have been developed to efficiently produce a variety of products. One of them is the Flexible Manufacturing System (FMS) that has the ability to produce different quantities of different varieties without the need to pause the production line, thus improving process efficiency and lowering production cost. FMS layout includes several arrangements of machines and material handling system and has a significant influence on routing flexibility, machine utilization, factory floor space area, responsiveness to change and productivity. In this research, a new FMS layout, composed of multiple circular loops, is proposed and compared to the traditional open field layout with rectangular loops and ladders. Face Centered Composite Design (FCCD) is applied to investigate the main and interaction effect of product quantity, variety and complexity, and layout design on system performance. The fourth categorical factor considered is the layout shape. Total production cost is used as a system performance metric. To determine this cost, a linear programming (LP) mathematical model is formulated. The model design attributes include cell layout, cell formation, machine capacities, constant and variable machine cost, lot splitting, and alternative process routings. Lingo software is used to solve the formulated optimization model which was validated by comparing it to test cases available in the literature. Response Surface Methodology (RSM) was used for modeling the responses. The main effect plots indicate that increasing the number of locations had the most significant influence on cost, followed successively by product and routing. Results reveal that proposed circular layout is more cost effective than the traditional rectangular open field layout with cost savings reaching 14% and more when product variety and complexity is increased."--Abstract.

Author: Michael F. Zaeh
Publisher: Springer Science & Business Media
ISBN: 3319020544
Category : Technology & Engineering
Languages : en
Pages : 472

View

Book Description
The changing manufacturing environment requires more responsive and adaptable manufacturing systems. The theme of the 5th International Conference on Changeable, Agile, Reconfigurable and Virtual production (CARV2013) is "Enabling Manufacturing Competitiveness and Economic Sustainability. Leading edge research and best implementation practices and experiences, which address these important issues and challenges, are presented. The proceedings include advances in manufacturing systems design, planning, evaluation, control and evolving paradigms such as mass customization, personalization, changeability, re-configurability and flexibility. New and important concepts such as the dynamic product families and platforms, co-evolution of products and systems, and methods for enhancing manufacturing systems' economic sustainability and prolonging their life to produce more than one product generation are treated. Enablers of change in manufacturing systems, production volume and capability, scalability and managing the volatility of markets, competition among global enterprises and the increasing complexity of products, manufacturing systems and management strategies are discussed. Industry challenges and future directions for research and development needed to help both practitioners and academicians are presented. About the Editor Prof. Dr.-Ing. Michael F. Zaeh, born in 1963, has been and is Professor for and Manufacturing Technology since 2002 and, together with Prof. Dr.-Ing. Gunther Reinhart, Head of the Institute for Machine Tools and Industrial Management (iwb) at the Technische Universitaet Muenchen (TUM). After studying general mechanical engineering, he was doctoral candidate under Prof. Dr.-Ing. Joachim Milberg at TUM from 1990 until 1993 and received his doctorate in 1993. From 1994 to 1995, he was department leader under Prof. Dr.-Ing. Gunther Reinhart. From 1996 to 2002, he worked for a machine tool manufacturer in several positions, most recently as a member of the extended management. Prof. Dr.-Ing. Michael F. Zaeh is an associated member of the CIRP and member of acatech, WGP and WLP. His current researches include among others Joining and Cutting Technologies like Laser Cutting and Welding as well as Friction Stir Welding, Structural Behaviour and Energy Efficiency of Machine Tools and Manufacturing Processes like Additive Manufacturing.

Author: Lyes Benyoucef
Publisher: Springer Nature
ISBN: 3030287823
Category : Technology & Engineering
Languages : en
Pages : 250

View

Book Description
This book develops innovative techniques from operational research and management science for the design and implementation of a reconfigurable manufacturing system (RMS), and subsequently analyzes and assesses their performance. A reconfigurable manufacturing system (RMS) is a paradigm that can address many of the challenges posed by the modern market. Accordingly, substantial research is now being conducted on RMS, focusing on various levels of decision-making (strategic, tactical and operational). However, as a relatively new research area, there are still only very few books and articles available on reconfigurable manufacturing system design and management. In addition to filling that gap, this book provides a forum for investigating, exchanging ideas on, and disseminating the latest advances in the broad area of RMS applications in today’s industry. Gathering contributions by experts from academia, industry and policy-making, it represents an essential contribution to the existing literature on manufacturing and logistics in general and industry 4.0 in particular.

Author: Ulrich A. W. Tetzlaff
Publisher:
ISBN: 9783642503184
Category :
Languages : en
Pages : 208

View

Book Description

Author: H. K. Shivanand
Publisher: New Age International
ISBN: 8122418708
Category : Computer integrated manufacturing systems
Languages : en
Pages : 18

View

Book Description
About the Book: The book is intended to serve as a textbook for the final and pre-final year B.E., B. Tech. and M. Tech. students of Mechanical, Production, Manufacturing, Computer Integrated Manufacturing, Automobile Engg., disciplines. This book can be used in industries, technical training institutes. This covers the main areas of interest in flexible manufacturing namely automation, flexible cells, workstation, AGV?s, AS/RS etc. Separate chapters have been devoted to the important topics. This book emphasizes the basic principles of working and the applications of a wide range of manufactur.

Author: U. Tetzlaff
Publisher:
ISBN: 9783540913955
Category :
Languages : en
Pages :

View

Book Description