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The Computer-Based Design Process by A. J. Medland Pdf
The topic known as computer-aided design and manufacture has developed rapidly over the last 20 years. The range of hardware configurations and supporting software on offer to the potential user is bewildering. This extends from the inexpensive single-user micro-based system, through to the vast industrial networks which are supported by many remote mainframe machines and have been reported to service up to a thousand workstations. This advance in technology has been driven by, and in its turn has fuelled, the development of ever greater computing power and graphics capability. It is these features that all working in the field would now recognize as essential to any CADCAM system. Effort has thus been put into developing a range of structural and solid modellers which, in conjunction with the appropriate terminal configuration and ray tracing graphics technology, can construct pictures of uncanny realism. Complicated analysis programs have been developed that can calculate the stresses in complex structures and display the results as colour shaded maps upon the surface of a pictorial view of the object. If the time to process and the system cost are ignored, then the apparent ease with which these systems perform such analysis and generate such high quality images, leaves the observer awe struck.
This second edition provides the basic, practical understanding of computer-based design that has led to the creation of a knowledge-driven approach. This approach, through constraint modelling, has been specifically developed to handle the problems of conflict present in the conceptual stages of a real design situation.
A collection of papers from a conference held at Kings College, London. Computer-based Design focuses on all areas of design using computational methods and examines how all these individual tools can be integrated to produce a coherent design process. This volume also covers areas of manual design methods and modelling that are vital to the continuing development and evolution of the computer-aided design process. TOPICS COVERED INCLUDE Product design and modelling Design process Decision-making models Computer-assisted design systems Computer-assisted conceptual design Computer-assisted detailed design Computer assisted design for manufacture Design knowledge manipulation Engineering change Engineering design issues Fuzzy design Computer-aided design Industrial applications of design Advanced design applications Computational fluid dynamics Computer-based Design provides an excellent opportunity for an update on the latest techniques and developments from concept to advanced application in the design arena.
Computer Aided Design by Jose L. Encarnacao,Rolf Lindner,Ernst G. Schlechtendahl Pdf
2 e This book describes principles, methods and tools that are common to computer applications for design tasks. CAD is considered in this book as a discipline that provides the required know-how in computer hardware and software, in systems analysis and in engineering methodology for specifying, designing, implementing, introducing, and using computer based systems for design purposes. The first chapter gives an impression of the book as a whole, and following chapters deal with the history and the components of CAD, the process aspect of CAD, CAD architecture, graphical devices and systems, CAD engineering methods, CAD data transfer, and application examples. The flood of new developments in the field and the success of the first edition of this book have led the authors to prepare this completely revised, updated and extended second edition. Extensive new material is included on computer graphics, implementation methodology and CAD data transfer; the material on graphics standards is updated. The book is aimed primarily at engineers who design or install CAD systems. It is also intended for students who seek a broad fundamental background in CAD.
Computer Aided Design by J. Encarnacao,E. G. Schlechtendahl Pdf
4 lation and optimization. These are essential constituents of the iterative process, leading to a feasible and, one hopes, optimal design. 1.3 Content of the Book In Chapter 2 we present briefly the history of CAD. The main components of CAD systems are identified, and their principal functions described. Economi cal and interdisciplinary aspects are discussed. Chapter 3 starts with a systems analysis of the design process. The notion of a process is introduced as a fundamental tool to describe activities like design as a whole, computer-aided design, program executions, terminal sessions etc. The environment and the resources which the environment must supply for the successful execution of any process are discussed. The problem of modelling the design objects in an abstract schema and the interrelation between the schema and the planning of the individual step in the design are analysed. Chapter 4 concentrates on the interfaces among the components of a CAD system, including the human operator. The problem of mapping an abstract schema onto the capabilities of various programming, command, or data de scription languages is described in detail. Emphasis is laid upon the resource aspect and its influence on the design of CAD systems. The concept of a CAD software machine is introduced, and rules for designing such machines are given.
Computer Based Design and Manufacturing by Emad Abouel Nasr,Ali K. Kamrani Pdf
This book offers insights into the methods and techniques required to implement a consumer-focused product design philosophy. It does this by integrating capabilities for intelligent information support and group decision-making utilizing a common enterprise network model and knowledge interface through shared technologies. It includes discussion of applied methods developed in the field of the product design and gives the latest research results.
Computer Aided Design and Design Automation by Wai-Kai Chen Pdf
This volume of The Circuits and Filters Handbook, Third Edition focuses on computer aided design and design automation. In the first part of the book, international contributors address topics such as the modeling of circuit performances, symbolic analysis methods, numerical analysis methods, design by optimization, statistical design optimization, and physical design automation. In the second half of the text, they turn their attention to RF CAD, high performance simulation, formal verification, RTK behavioral synthesis, system-level design, an Internet-based micro-electronic design automation framework, performance modeling, and embedded computing systems design.
Knowledge Intensive Computer Aided Design by Susan Finger,Tetsuo Tomiyama,Martti Mäntylä Pdf
This state-of-the-art book explores the concept of knowledge-intensive CAD systems. The topics covered range from ontology to knowledge representation, making it essential reading for researchers, engineers, and technical managers involved in the development of advanced applications for knowledge management, engineering design, and manufacturing.
Computer Aided and Integrated Manufacturing Systems by Cornelius T. Leondes Pdf
This is an invaluable five-volume reference on the very broad and highly significant subject of computer aided and integrated manufacturing systems. It is a set of distinctly titled and well-harmonized volumes by leading experts on the international scene. The techniques and technologies used in computer aided and integrated manufacturing systems have produced, and will no doubt continue to produce, major annual improvements in productivity, which is defined as the goods and services produced from each hour of work. This publication deals particularly with more effective utilization of labor and capital, especially information technology systems. Together the five volumes treat comprehensively the major techniques and technologies that are involved. Contents: .: Techniques and Applications of Production Planning in Electronics Manufacturing Systems (J Smed et al.); Economic Optimization of Machining Operations in Computer Aided Manufacturing Systems (J Wang); Computer Techniques and Applications for Real-Time Embedded Control in Mechatronic Systems (M Colnaric & W A Halang); and other articles. Readership: Graduate students, academics, researchers, and industrialists in computer engineering, industrial engineering, mechanical engineering, systems engineering, artificial intelligence and operations management
Principles of Computer-aided Design and Manufacturing by Farid M. L. Amirouche Pdf
Principles of Computer-Aided Design and Manufacturingis the product of many years of experience teaching courses in computer-aided design (CAD). My first book, published in 1991, was a challenge—the technology was evolving and both the hardware and software were changing rapidly. Since then we have come a long way in the CAD/CAM area, and the prospects are even better for future intelligent systems that will enable engineers to design engineering products more efficiently. From design to development, we are attaining some great achievements that will engineer products that are more competitive and ready to meet the market needs. In essence, CAD will provide the engineer more time for the creative aspects in terms of concept formulation and interpretation of the results derived from the analysis. The tools of CAD/CAM are now more standardized and most of our students today come equipped with the basic engineering graphics knowledge needed to learn advanced engineering tools. Having gone through the experience of teaching this course and at the same time trying to adapt to the changing needs in the laboratory, I have written this book under the premise of providing the students the fundamentals needed to advance their understanding of design, analysis, and product development in manufacturing. The latter is achieved through selection of appropriate topics and analytical methods in all aspects of design that are pertinent to CAD with the hope that students will embrace them with conviction. These topics are written in a clear and concise form, and are followed by examples to guide the students and engineers through a wonderful learning experience. The thrust behind learning and teaching CAD is the ability to reach a level of confidence that will enable oneself to interact with ease with the existing CAD systems to solve engineering problems. My philosophy is to teach through examples; hence, every topic covered is followed by examples to demonstrate the concepts. The basic engineering concepts learned in this book are independent of any specific software. We are at a stage now in which CAD/CAM does not necessary have to be self-contained. Rather, students should be able to use other tools to link or provide additional information as necessary to the CAD system. Where some topics could be supplemented, I have taken the liberty in this textbook of allowing the students to perform their exercises using MATLAB for the sake of understanding that CAD is a multidiscipline in nature and some parts of the design or analysis can be programmed in other languages. This is becoming a common practice as vendors are making it simpler and easier to transport files from different systems, and in some cases even be able to integrate different analysis tools to provide the students and engineers the ability to interact with their software to meet their engineering needs. This is certainly true in the variational design and parametric designs areas in which engineering equations are the engine behind the geometrical formulation and design of certain products. This textbook is written to satisfy the CAD requirements courses even though finite element coverage expands beyond the introduction of truss analysis. It is difficult to cover all topics in one semester. Topics should be selected to meet the course needs and the laboratory requirements that go with it. For example, at the University of Illinois at Chicago, we have a required laboratory part of the course where students are given different projects on weekly basis to become proficient in the use of CAD software such as ProE or IDEAS. The last lab projects are more involved and usually require some forms of analysis and animation. My intention is to provide additional topics in finite elements that will allow the instructor to focus not only on simple trusses but also be able to teach heat conduction, basic principles in FEM, and even vibration to broaden the scope of analysis. The idea is one that allows our senior students to be exposed to FEM by combining most of what they have learned and show how it can be done with the help of this powerful technique of FEM. This has been very successful with our undergraduate students and first-year graduate students because they are able to use this textbook to learn the basic concepts required in analysis to be able to use finite element tools such as ANSYS, IDEAS, and CATIA, among others. The book is divided into 15 chapters and provides a unique balance of topics that cover design, 3D transformation and geometry manipulation, surface creations, solid modeling, optimization, finite elements, robotics and robot economics, and CAM implementation. Chapter 1 provides a historical perspective of CAD and discusses virtual reality as it is used in our current engineering environment (the latter is a topic that will need to be explored further down the road). Chapter 2 addresses the different stages in design and provides concrete examples showing how these steps can be accomplished. The unique feature of this chapter is the parametric and variational design concept. In this textbook I have made an effort to enlighten the students with the need for these techniques to be taken seriously as they might become standard in the near future. The blending of man and machine is an effective tool when CAD systems are allowed to participate in the design and manufacturing process by aiding in the problem formulation, synthesis, conceptualization, and, of course, analysis. Once the students have had some exposure to CAD in general, Chapter 2 could be covered at any part of the course. I urge the instructors and readers to take the time and go over these examples and to create their own examples to appreciate the benefits of these tools. Chapter 3 discusses 2D and 3D transformations and geometry manipulation, and provides an in-depth analysis of images in 2D and 3D, and includes isometric views. Chapter 4 explains the fundamentals underlying splines, parametric and nonparametric curves, and Bezier curves and surfaces. A number of examples are included to assist the students in understanding how the concepts are implemented. Depending on how advanced the students are, selected topics can be skipped or simply assigned as additional material for the class. Chapter 5 introduces the concept of solid modeling and the various construction techniques and representation schemes in modeling. The students will apply some of these concepts in their lab work working with the making of solid models in CAD. Chapter 6 covers various techniques of optimization and introduces the students to the basic concepts of how to formulate an objective function, define the appropriate constraints, and choose the analytical tools to solve the problem. This chapter also focuses on popular techniques in optimization so that senior students and first-year graduate students will have some familiarity with their use. Chapters 7 through 10 form a unique combination of teaching the finite element method to our junior and senior students without the burden of heavy calculus. It is one of the major strengths of this textbook. If a curriculum is more focused on analysis, all chapters can be covered; otherwise, the instructor is given the choice of covering FEM by selecting the appropriate topics) for the class. This would include stress analysis, heat conduction, dynamic analysis, and vibration, or simply teaching the basic formulation of FEM as described in Chapter 7. The examples solved in these chapters represent real applications and will encourage the students to develop a good appetite for FEM. Computer-aided manufacturing is introduced in Chapters 11 through 15. I have opted to focus on key topics of interest to the students such as robotics and economic impact, group technology, and computer-integrated manufacturing. These are some of the features that need to be understood in the integration of CAD and CAM. Principles of Computer-Aided Design and Manufacturingis written for junior and senior level students and first-year graduate students who have had little exposure to computer-aided design. This textbook assumes that the students have some experience with programming and understand basic concepts in CAD found in a freshman course of graphics. This textbook is suitable for students who have had all their undergraduate requirements in their major. The latter is an incentive whereby students will fully appreciate the benefits of design techniques such as parametric and variational design and develop a deep understanding of how FEM works and how it is applied to various engineering applications. I am indebted to the reviewers for their useful comments and suggestions, which helped shape the content and focus of this book: Dr. Heana Costea, California State University at Northridge; Derek M. Yip-Hoi, University of Michigan at Ann Arbor; and Gregory Kremer, Ohio State University. I would also like to thank Dr. M. Ayub, visiting professor in the Civil Engineering Department at University of Chicago at Illinois, for taking the time to edit several chapters and provide his insight for the book and M. Arif, associate professor in the Civil Engineering Department at University of Chicago at Illinois, for his encouragement and support. The comments and suggestions of the reviewers were instrumental in my final revision and in selecting additional topics that were missing from the original proposal. They kindly helped review my original manuscript and assisted me in looking at their course focus and syllabus to get a better picture of how the CAD course is taught at their respective institutions. Finally, I am indebted to all my students who have assisted me in the preparation of necessary materials for this book; without their help, this wouldn't have been possible. In particular, I would like to thank Carlos Lopez for his efforts on the parametric and variational designs section of the book. I also like to thank Francisco Romero, Nagarajan Chandra, Pedro Gonzalez, and David McNeil for their genuine effort in assisting with some of the graphics of the book. I would like to thank Nikhil Khulka and Ivan Zivkovic for being there when I needed them the most to meet the publisher deadlines and organize the chapters and figures selected for the book. I also would like to thank Surya Pratar for helping with indexing of this book. Finally, let me take this opportunity to thank the editorial staff, Dorothy Marrero, David George, and Lynda Castillo at Prentice Hall, for their patience during the course of the production of the book. I had the pleasure of working closely with Kevin Bradley at Sunflower Publishing Services, who oversaw the complete publication of the book. He was kind and very responsive to all my questions. He worked intelligently to make sure I was happy with the changes and the editing of my book. At the end I would like to thank my family, Ginger, Larby, and Anissa, for their unconditional love and support and for their understanding in the sacrifices we make in achieving our objectives. In particular, I would like to thank my mom and dad for giving me hope, guidance, and values to treasure for years to come. FARID AMIROUCHE The Department of Mechanical & Industrial Engineering University of Illinois, Chicago
Machine Design with CAD and Optimization by Sayed M. Metwalli Pdf
MACHINE DESIGN WITH CAD AND OPTIMIZATION A guide to the new CAD and optimization tools and skills to generate real design synthesis of machine elements and systems Machine Design with CAD and Optimization offers the basic tools to design or synthesize machine elements and assembly of prospective elements in systems or products. It contains the necessary knowledge base, computer aided design, and optimization tools to define appropriate geometry and material selection of machine elements. A comprehensive text for each element includes: a chart, excel sheet, a MATLAB® program, or an interactive program to calculate the element geometry to guide in the selection of the appropriate material. The book contains an introduction to machine design and includes several design factors for consideration. It also offers information on the traditional rigorous design of machine elements. In addition, the author reviews the real design synthesis approach and offers material about stresses and material failure due to applied loading during intended performance. This comprehensive resource also contains an introduction to computer aided design and optimization. This important book: Provides the tools to perform a new direct design synthesis rather than design by a process of repeated analysis Contains a guide to knowledge-based design using CAD tools, software, and optimum component design for the new direct design synthesis of machine elements Allows for the initial suitable design synthesis in a very short time Delivers information on the utility of CAD and Optimization Accompanied by an online companion site including presentation files Written for students of engineering design, mechanical engineering, and automotive design. Machine Design with CAD and Optimization contains the new CAD and Optimization tools and defines the skills needed to generate real design synthesis of machine elements and systems on solid ground for better products and systems.
Collaborative and Distributed Chemical Engineering. From Understanding to Substantial Design Process Support by Manfred Nagl,Wolfgang Marquardt Pdf
IMPROVE stands for "Information Technology Support for Collaborative and Distributed Design Processes in Chemical Engineering" and is a large joint project of research institutions at RWTH Aachen University. This volume summarizes the results after 9 years of cooperative research work. The focus of IMRPOVE is on understanding, formalizing, evaluating, and, consequently, improving design processes in chemical engineering. In particular, IMPROVE focuses on conceptual design and basic engineering, where the fundamental decisions concerning the design or redesign of a chemical plant are undertaken. Design processes are analyzed and evaluated in collaboration with industrial partners.
How do we make building sustainable and fit for the future? The book presents a strategy for tackling the construction industry’s future challenges from the perspective of the organizing architect, and with a view to the interdisciplinary knowledge, capable of integration, of related disciplines. With a profound insight into the operative processes, the author analyses the complex mechanisms of the system that affect the whole of society and often follow very traditional process structures. He investigates the interaction between the stakeholders’ actions in the construction process and the framework conditions and, on that basis, develops a strategy which—itself a process—computes the elements of the intended target state.
Contemporary Architecture and the Digital Design Process by Peter Szalapaj Pdf
Contemporary Architecture and the Digital Design Process introduces the reader to new developments in the computer modelling of design form in contemporary architectural practice through a series of detailed case studies. The book illustrates how evolving design practices use and exploit the potential of new computing technologies in a wide range of areas and application. A central thesis of this book is that technology follows design demand, rather than design adjusting to available new technology. Designers are not merely passive recipients of prescribed computing tools and techniques. Instead, they are increasingly able to express their intuitive design ideas through the rational medium of computing. The book features several contemporary building projects, each of which introduces a range of CAD and computing issues based upon the work of creative architectural and engineering design practices. These include the offices of Frank O. Gehry, Peter Cook and Colin Fournier, Anthony Hunt Associates, Peter Hubner, Szyskowitz-Kowalski, and Faulkner Brown. All these examples show what architects need to know and the skills they need to acquire to use advanced CAD technology.
