Capacity Oriented Analysis and Design of Production Systems

Capacity Oriented Analysis and Design of Production Systems PDF Author: M.B.M. de Koster
Publisher: Springer
ISBN: 9783642516672
Category : Business & Economics
Languages : en
Pages : 245

Get Book

Book Description
In production systems there are often capacity oriented performance objectives, like a desired total throughput, a desired average throughput time and average work in-process. Such performance objectives are expressed in "units of products" rather than in specific product types. This book presents a way of modeling and analyzing production systems so, that such capacity oriented performance criteria can be measured in a simple way. The model consists of three basic elements. 1. The product types in the system are aggregated. 2. The product flow is modeled as being continuous. 3. The machines in the model have a finite number of states. Each state has a phase-type sojourn distribution and an associated production speed. Transitions between the states are determined by an irreducible Markov transition matrix. In the book both the mathematical properties and the practical applicabilities of the model are investigated. The model is extensively analyzed for various layouts, like flow lines, assembly disassembly systems and networks where parallel machines share common buffers. Furthermore various ways of controlling the product flow in the model are investigated, such as Base Stock Control, Workload Control, control by finite buffers and control by the Reorder Point System. An approximation technique is developed for a quick estimation of performance measures like throughput and average work-in-process, for networks with layouts and control techniques like those above-mentioned.

Capacity Oriented Analysis and Design of Production Systems

Capacity Oriented Analysis and Design of Production Systems PDF Author: M.B.M. de Koster
Publisher: Springer
ISBN: 9783642516672
Category : Business & Economics
Languages : en
Pages : 245

Get Book

Book Description
In production systems there are often capacity oriented performance objectives, like a desired total throughput, a desired average throughput time and average work in-process. Such performance objectives are expressed in "units of products" rather than in specific product types. This book presents a way of modeling and analyzing production systems so, that such capacity oriented performance criteria can be measured in a simple way. The model consists of three basic elements. 1. The product types in the system are aggregated. 2. The product flow is modeled as being continuous. 3. The machines in the model have a finite number of states. Each state has a phase-type sojourn distribution and an associated production speed. Transitions between the states are determined by an irreducible Markov transition matrix. In the book both the mathematical properties and the practical applicabilities of the model are investigated. The model is extensively analyzed for various layouts, like flow lines, assembly disassembly systems and networks where parallel machines share common buffers. Furthermore various ways of controlling the product flow in the model are investigated, such as Base Stock Control, Workload Control, control by finite buffers and control by the Reorder Point System. An approximation technique is developed for a quick estimation of performance measures like throughput and average work-in-process, for networks with layouts and control techniques like those above-mentioned.

Capacity Oriented Analysis and Design of Production Systems

Capacity Oriented Analysis and Design of Production Systems PDF Author: M.B.M. de Koster
Publisher: Springer Science & Business Media
ISBN: 3642516661
Category : Business & Economics
Languages : en
Pages : 259

Get Book

Book Description
In production systems there are often capacity oriented performance objectives, like a desired total throughput, a desired average throughput time and average work in-process. Such performance objectives are expressed in "units of products" rather than in specific product types. This book presents a way of modeling and analyzing production systems so, that such capacity oriented performance criteria can be measured in a simple way. The model consists of three basic elements. 1. The product types in the system are aggregated. 2. The product flow is modeled as being continuous. 3. The machines in the model have a finite number of states. Each state has a phase-type sojourn distribution and an associated production speed. Transitions between the states are determined by an irreducible Markov transition matrix. In the book both the mathematical properties and the practical applicabilities of the model are investigated. The model is extensively analyzed for various layouts, like flow lines, assembly disassembly systems and networks where parallel machines share common buffers. Furthermore various ways of controlling the product flow in the model are investigated, such as Base Stock Control, Workload Control, control by finite buffers and control by the Reorder Point System. An approximation technique is developed for a quick estimation of performance measures like throughput and average work-in-process, for networks with layouts and control techniques like those above-mentioned.

Queueing Theory in Manufacturing Systems Analysis and Design

Queueing Theory in Manufacturing Systems Analysis and Design PDF Author: H.T. Papadopolous
Publisher: Springer Science & Business Media
ISBN: 9780412387203
Category : Technology & Engineering
Languages : en
Pages : 426

Get Book

Book Description
The objective of the book is to acquaint the reader with the use of queueing theory in the analysis of manufacturing systems.

Industrial Assembly

Industrial Assembly PDF Author: Shimon Y. Nof
Publisher: Springer Science & Business Media
ISBN: 9780412557705
Category : Business & Economics
Languages : en
Pages : 522

Get Book

Book Description
Industrial Assembly is a rapidly changing field with significant importance in production. This book is the first of its kind to combine technology, design, methods, and planning and control models of assembly operations and systems. With the increasing importance of assembly in industry and of simultaneous engineering approaches, this timely publication provides: comprehensive coverage of technological, engineering, and management aspects of this field; multi-disciplinary approaches to rationalization of assembly operations and systems; explanation of qualitative models, information technologies, and design techniques, which have been practised effectively in industrial assembly; as well as theoretical foundations and emerging trends that shape the future of assembly.

Performance Analysis of Flow Lines with Non-Linear Flow of Material

Performance Analysis of Flow Lines with Non-Linear Flow of Material PDF Author: Stefan Helber
Publisher: Springer Science & Business Media
ISBN: 364295863X
Category : Mathematics
Languages : en
Pages : 290

Get Book

Book Description
Flow line design is one of the major tasks in production management. The decision to install a set of machines and buffers is often highly irreversible. It determines both cost and revenue to a large extent. In order to assess the economic impact of any possible flow line design, production rates and inventory levels have to be estimated. These performance measures depend on the allocation of buffers whenever the flow of material is occasionally disrupted, for example due to machine failures or quality problems. The book describes analytical methods that can be used to evaluate flow lines much faster than with simulation techniques. Based on these fast analytical techniques, it is possible to determine a flow line design that maximizes the net present value of the flow line investment. The flow of material through the line may be non-linear, for example due to assembly operations or quality inspections.

Modern Production Concepts

Modern Production Concepts PDF Author: Günter Fandel
Publisher: Springer Science & Business Media
ISBN: 3642764010
Category : Business & Economics
Languages : en
Pages : 760

Get Book

Book Description
Modern production concepts can be considered as an essential field of economics nowadays. They help to give valuable insights and thus provide important competitive advantages. There is a broad variety of new approaches to Production Planning and Control (PPC), Just-in-Time (JIT), Flexible Manufacturing Systems (FMS), Flexible Automation (FA), Automated Guided Vehicle Systems (AGVS), Total Quality Control (TQC), and Computer Integrated Manufacturing (CIM), all of which are indispensable cornerstones in this context. This book presents in a condensed and easy-to-comprehend form the different contributions of a group of internationally recommended scientists. The varied approaches to modern production concepts are not only based on theoretical foundations but also go one step further in that they present the implementation of these concepts and methods in detail. This close link with practical aspects will help to illuminate the theoretical material for researchers and students in universities. The book will be of major importance for practitioners involved in solving everyday industrial problems. The interdisciplinary nature of these contributions will help to create a new and valuable perspective on the field of production concepts.

Production Control in Practice

Production Control in Practice PDF Author: Henny Van Ooijen
Publisher: John Wiley & Sons
ISBN: 3527845895
Category : Technology & Engineering
Languages : en
Pages : 322

Get Book

Book Description
Production Control in Practice Practice-oriented coverage of production planning and control processes for goods and services, written for any industry Production Control in Practice explores the operational control of production and inventory processes in organizations across industries, covering both tangible and intangible products and offering viable, efficient solutions to characteristic production control problems, such as what goods to produce when and how. A number of examples/stylized applications are included to help readers understand and apply the discussed concepts and theories to their own organizations. This book distinguishes between the control of production units and the control of goods flow between these units and the market and discusses various coordination and material supply control mechanisms relevant to supply chains. It also presents a typology of production situations found in practice, using a structured approach to discussing the relevant control decisions for each situation. This book is unique because (basic) control decisions are discussed for the different characteristic Decoupling Point Control and Production Unit Control situations from a holistic point of view, taking into account both mathematical considerations as well as various situational factors. Sample topics covered in Production Control in Practice include: Terminology and concepts used in production control, including complexity, uncertainty, and flexibility Types of release triggers, covering just-in-time versus just-in-case and push versus pull in logistics Horizontal and vertical decomposition, and time series-related forecasting for stationary demand versus demand with trend Order size, covering optimal batch size in case of fixed order size, relaxation of assumptions, and single period considerations MRP systems, covering Material Requirements Planning (MRP-I) and Manufacturing Resource Planning Systems (MRP-II) With excellent coverage of the subject across different products and industries and several examples to help readers follow along, Production Control in Practice is an ideal reference for bachelor students from universities of applied sciences and academic bachelor students, as well as practitioners in related disciplines.

Production Planning in Automated Manufacturing

Production Planning in Automated Manufacturing PDF Author: Yves Crama
Publisher: Springer Science & Business Media
ISBN: 3662004593
Category : Business & Economics
Languages : en
Pages : 212

Get Book

Book Description
In this book quantitative approaches are proposed for production planning problems in automated manufacturing. In particular techniques from operations research/combinatorial optimization provide ways to tackle these problems. Special attention is devoted to the efficient use of tools in production planning for automated manufacturing systems. The book presents models and tests solution strategies for different kinds of production decisions. A case study in the manufacturing of printed circuit boards highlights the methodology. This book will help understand the nature of production planning problems emerging in automated manufacturing and show how techniques from operations research may contribute to their solution.

An Integrated Approach in Production Planning and Scheduling

An Integrated Approach in Production Planning and Scheduling PDF Author: Stephane Dauzere-Peres
Publisher: Springer Science & Business Media
ISBN: 3642468047
Category : Business & Economics
Languages : en
Pages : 154

Get Book

Book Description
Production Management is a large field concerned with all the aspects related to production, from the very bottom decisions at the machine level, to the top-level strategic decisicns. In this book, we are concerned with production planning and scheduling aspects. Traditional production planning methodologies are based on a now widely ac cepted hierarchical decom?osition into several planning decision levels. The higher in the hierarchy, the more aggregate are the models and the more important are the decisions. In this book, we only consider the last two decision levels in the hierarchy, namely, the mid-term (or tacticaQ planning level and the short-term (or operationaQ scheduling level. In the literature and in practice, the decisions are taken in sequence and in a top-down approach from the highest level in the hierarchy to the bottom level. The decisions taken at some level in the hierarchy are constrained by those already taken at upper levels and in turn, must translate into feasible objectives for the next lower levels in the hierarchy. It is a common sense remark to say that the whole hierarchical decision process is coherent if the interactions between different levels in the hierarchy are taken into account so that a decision taken at some level in the hierarchy translates into a feasible objective for the next decision level in the hierarchy. However, and surpris ingly enough, this crucial consistency issue is rarely investigated and few results are available in the literature.

Lotsizing and Scheduling for Production Planning

Lotsizing and Scheduling for Production Planning PDF Author: Knut Haase
Publisher: Springer Science & Business Media
ISBN: 3642457355
Category : Technology & Engineering
Languages : en
Pages : 127

Get Book

Book Description
Billions of dollars are tied up in the inventories of manufacturing companies which cause large (interest) costs. A small decrease of the inventory and/or production costs without reduction of the service level can increase the profit substantially. Especially in the case of scarce capacity, efficient production schedules are fundamental for short delivery time and on-time delivery which are important competitive priorities. To support decision makers by improving their manufacturing resource planning system with appropriate methods is one of the most of production planning. interesting challenges The following chapters contain new models and new solution strategies which may be helpful for decision makers and for further research in the areas of production planning and operations research. The main subject is on lotsizing and scheduling. The objectives and further characteristics of such problems can be inferred from practical need. Thus, before an outline is given, we consider the general objectives of lotsizing and scheduling and classify the most important characteristics of such problems in the following sections.