FIFTH EDITION E Engineering Design provides a realistic understanding of the engineering design process. N The book presents a detailed, eight-step process (Chapters 1 through 9) that gives prescriptive guidance to the student from problem defi nition through detail design. Chapters 10 through 17 G present more specifi c treatment of specialty topics (design for X). The text is appropriate for use in either a junior or senior engineering course or a graduate-level course on the design process. I N OUTSTANDING FEATURES INCLUDE: E Use of uniform terminology throughout E FIFTH EDITION Expanded discussion of design tools like benchmarking, QFD, creativity methods, functional R decomposition and synthesis, and the decision process and decision tools ENGINEERING Introduction of different approaches to the steps of design in Chapters 6 and 7 so students I N appreciate the range of practice and scholarship on design Separate chapters presenting in-depth treatment of design topics such as materials selection, G design for manufacturing, sustainability, robust design, reliability, and cost evaluation DESIGN Many references to the literature have been included as well as suggestions for useful design D software and references to websites. E M CHANGES TO THE FIFTH EDITION: D S D Reorganization and new material on QFD’s House of Quality, methods for conceptual design, A L additional structure in selection of conceptual design alternatives, design for sustainability I IM and environment, cost of quality, updated Internet references G # 1 1 One additional chapter is available to the student at the text website: Chapter 18—Legal N 761 and Ethical Issues in Engineering Design 99 1 /4 Further resources that support the text are available on the website: www.mhhe.com/dieter /1 2 C Detailed guidelines on design team performance Y Dieter A N PowerPoint lecture slides for instructors George E. Dieter M Schmidt A G Y Linda C. Schmidt E L O B L K ENGINEERING DESIGN FIFTH EDITION George E. Dieter University of Maryland Linda C. Schmidt University of Maryland ddiiee9988114444__ffmm__ii--xxiivv..iinndddd ii 11//1133//1122 99::5533 AAMM ENGINEERING DESIGN, FIFTH EDITION Published by McGraw-Hill, a business unit of The McGraw-Hill Companies, Inc., 1221 Avenue of the Americas, New York, NY 10020. Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. Previous editions © 2009, 2000, and 1991. Printed in the United States of America. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of The McGraw-Hill Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or broadcast for distance learning. Some ancillaries, including electronic and print components, may not be available to customers outside the United States. This book is printed on acid-free paper. 1 2 3 4 5 6 7 8 9 0 DOC/DOC 1 0 9 8 7 6 5 4 3 2 ISBN 978-0-07-339814-3 MHID 0-07-339814-4 Vice President & Editor-in-Chief: Marty Lange Vice President of Specialized Publishing: Janice M. Roerig-Blong Editorial Director: Michael Lange Global Publisher: Raghothaman Srinivasan Senior Sponsoring Editor: Bill Stenquist Marketing Manager: Curt Reynolds Developmental Editor: Lorraine K. Buczek Project Manager: Melissa M. Leick Design Coordinator: Brenda A. Rolwes Cover Designer: Studio Montage, St. Louis, Missouri Cover Image: © Getty Images RF Buyer: Laura Fuller Media Project Manager: Balaji Sundararaman Compositor: Cenveo Publisher Services Typeface: 10.5/12 Times Roman Printer: R. R. Donnelley Library of Congress Cataloging-in-Publication Data Dieter, George Ellwood. Engineering design. — 5th ed. / George E . Dieter, Linda C . Schmidt. p. cm. ISBN 978-0-07-339814-3 (acid-free paper) 1. Engineering design. I. Schmidt, Linda C. II. Title. TA174.D495 2013 620'.0042—dc23 2011048958 www.mhhe.com ddiiee9988114444__ffmm__ii--xxiivv..iinndddd iiii 11//1133//1122 99::5533 AAMM ABOUT THE AUTHORS GEORGE E. DIETER is Glenn L. Martin Institute Professor of Engineering at the University of Maryland. The author received his B.S. Met.E. degree from Drexel University and his D.Sc. degree from Carnegie Mellon University. After a stint in industry with the DuPont Engineering Research Laboratory, he became head of the Metallurgical Engineering Department at Drexel University, where he later became Dean of Engineering. Professor Dieter later joined the faculty of Carnegie Mellon University as Professor of Engineering and Director of the Processing Research Insti- tute. He moved to the University of Maryland in 1977 as professor of Mechanical Engineering and Dean of Engineering, serving as dean until 1994. Professor Dieter is a fellow of ASM International, TMS, AAAS, and ASEE. He has received the education award from ASM, TMS, and SME, as well as the Lamme Medal, the highest award of ASEE. He has been chair of the Engineering Deans Council, and president of ASEE. He is a member of the National Academy of Engi- neering. He also is the author of Mechanical Metallurgy, published by McGraw-Hill, now in its third edition. LINDA C. SCHMIDT is an Associate Professor in the Department of Mechani- cal Engineering at the University of Maryland. Dr. Schmidt’s general research inter- ests and publications are in the areas of mechanical design theory and methodology, design generation systems for use during conceptual design, design rationale capture, and effective student learning on engineering project design teams. Dr. Schmidt completed her doctorate in Mechanical Engineering at Carnegie Mellon University with research in grammar-based generative design. She holds B.S. and M.S. degrees from Iowa State University for work in Industrial Engineering. Dr. Schmidt is a recipient of the 1998 U.S. National Science Foundation Faculty Early Career Award for generative conceptual design. She co-founded RISE, a summer research experience that won the 2003 Exemplary Program Award from the American College Personnel Asso- ciation’s Commission for Academic Support in Higher Education. Dr. Schmidt was ddiiee9988114444__ffmm__ii--xxiivv..iinndddd iiiiii 11//1133//1122 99::5533 AAMM iv engineering design awarded the American Society of Engineering Education’s 2008 Merryfi eld Design Award. Dr. Schmidt is active in engineering design theory research and teaching engi- neering design to third- and fourth-year undergraduates and graduate students in mechanical engineering. She has coauthored a text on engineering decision-making, two editions of a text on product development, and a team-training curriculum for faculty using engineering student project teams. Dr. Schmidt was the guest editor of the Journal of Engineering Valuation & Cost Analysis and has served as an Associ- ate Editor of the ASME Journal of Mechanical Design. Dr. Schmidt is a member of ASME, SME, and ASEE. ddiiee9988114444__ffmm__ii--xxiivv..iinndddd iivv 11//1133//1122 99::5533 AAMM BRIEF CONTENTS Chapter 1 Engineering Design 1 Chapter 2 Product Development Process 36 Chapter 3 Problem Defi nition and Need Identifi cation 70 Chapter 4 Team Behavior and Tools 118 Chapter 5 Gathering Information 158 Chapter 6 Concept Generation 191 Chapter 7 Decision Making and Concept Selection 244 Chapter 8 Embodiment Design 299 Chapter 9 Detail Design 386 Chapter 10 Design for Sustainability and the Environment 411 Chapter 11 Materials Selection 437 Chapter 12 Design with Materials 487 Chapter 13 Design for Manufacturing 526 Chapter 14 Risk, Reliability, and Safety 628 Chapter 15 Quality, Robust Design, and Optimization 680 Chapter 16 Economic Decision Making 734 Chapter 17 Cost Evaluation 776 Chapter 18 Legal and Ethical Issues in Engineering Design www.mhhe.com/dieter Appendices A-1 Author & Subject Indexes I-1 v ddiiee9988114444__ffmm__ii--xxiivv..iinndddd vv 11//1133//1122 99::5533 AAMM DETAILED CONTENTS Preface xiii Chapter 1 Engineering Design 1 1.1 Introduction 1 1.2 Engineering Design Process 3 1.3 Ways to Think about the Engineering Design Process 6 1.4 Description of Design Process 14 1.5 Considerations of a Good Design 17 1.6 Computer-Aided Engineering 22 1.7 Designing to Codes and Standards 24 1.8 Design Review 26 1.9 Societal Considerations in Engineering Design 28 1.10 Summary 32 New Terms and Concepts 33 Bibliography 33 Problems and Exercises 33 Chapter 2 Product Development Process 36 2.1 Introduction 36 2.2 Product Development Process 36 2.3 Product and Process Cycles 44 2.4 Organization for Design and Product Development 48 2.5 Markets and Marketing 55 2.6 Technological Innovation 61 2.7 Summary 66 New Terms and Concepts 67 Bibliography 67 Problems and Exercises 67 vi ddiiee9988114444__ffmm__ii--xxiivv..iinndddd vvii 11//1133//1122 99::5533 AAMM detailed contents vii Chapter 3 Problem Defi nition and Need Identifi cation 70 3.1 Introduction 70 3.2 Identifying Customer Needs 72 3.3 Customer Requirements 80 3.4 Gathering Information on Existing Products 86 3.5 Establishing the Engineering Characteristics 94 3.6 Quality Function Deployment 99 3.7 Product Design Specifi cation 111 3.8 Summary 113 New Terms and Concepts 115 Bibliography 115 Problems and Exercises 116 Chapter 4 Team Behavior and Tools 118 4.1 Introduction 118 4.2 What It Means to be an Effective Team Member 119 4.3 Team Leadership Roles 120 4.4 Team Dynamics 121 4.5 Effective Team Meetings 123 4.6 Problem-Solving Tools 125 4.7 Time Management 144 4.8 Planning and Scheduling 146 4.9 Summary 154 New Terms and Concepts 154 Bibliography 155 Problems and Exercises 155 Chapter 5 Gathering Information 158 5.1 The Information Challenge 158 5.2 Types of Design Information 160 5.3 Sources of Design Information 161 5.4 Library Sources of Information 164 5.5 Government Sources of Information 168 5.6 Information From the Internet 169 5.7 Professional Societies and Trade Associations 174 5.8 Codes and Standards 176 5.9 Patents and Other Intellectual Property 178 5.10 Company-Centered Information 187 5.11 Summary 188 New Terms and Concepts 189 Bibliography 189 Problems and Exercises 189 Chapter 6 Concept Generation 191 6.1 Introduction to Creative Thinking 192 6.2 Creativity and Problem Solving 196 ddiiee9988114444__ffmm__ii--xxiivv..iinndddd vviiii 11//1133//1122 99::5533 AAMM viii engineering design 6.3 Creative Thinking Methods 202 6.4 Creative Methods for Design 212 6.5 Functional Decomposition and Synthesis 216 6.6 Morphological Methods 226 6.7 TRIZ: The Theory of Inventive Problem Solving 229 6.8 Summary 240 New Terms and Concepts 241 Bibliography 242 Problems and Exercises 242 Chapter 7 Decision Making and Concept Selection 244 7.1 Introduction 244 7.2 Decision Making 245 7.3 Evaluation Processes 257 7.4 Using Models in Evaluation 262 7.5 Pugh Chart 279 7.6 Weighted Decision Matrix 283 7.7 Analytic Hierarchy Process (AHP) 286 7.8 Summary 294 New Terms and Concepts 295 Bibliography 295 Problems and Exercises 295 Chapter 8 Embodiment Design 299 8.1 Introduction 299 8.2 Product Architecture 302 8.3 Steps in Developing Product Architecture 306 8.4 Confi guration Design 311 8.5 Best Practices for Confi guration Design 318 8.6 Parametric Design 328 8.7 Dimensions and Tolerances 340 8.8 Industrial Design 358 8.9 Human Factors Design 361 8.10 Life-Cycle Design 368 8.11 Prototyping and Testing 369 8.12 Design for X (DFX) 379 8.13 Summary 381 New Terms and Concepts 382 Bibliography 382 Problems and Exercises 383 Chapter 9 Detail Design 386 9.1 Introduction 386 9.2 Activities and Decisions in Detail Design 387 9.3 Communicating Design and Manufacturing Information 391 ddiiee9988114444__ffmm__ii--xxiivv..iinndddd vviiiiii 11//1133//1122 99::5533 AAMM detailed contents ix 9.4 Final Design Review 402 9.5 Design and Business Activities Beyond Detail Design 403 9.6 Facilitating Design and Manufacturing with Computer-Based Methods 406 9.7 Summary 408 New Terms and Concepts 408 Bibliography 409 Problems and Exercises 409 Chapter 10 Design for Sustainability and the Environment 411 10.1 The Environmental Movement 411 10.2 Sustainabilty 416 10.3 Challenges of Sustainability for Business 420 10.4 End-Of-Life Product Transformations 422 10.5 Role of Material Selection in Design for Environment 427 10.6 Tools to Aid Design for the Environment and Sustainability 431 10.7 Summary 436 New Terms and Concepts 435 Bibliography 436 Problems and Exercises 436 Chapter 11 Materials Selection 437 11.1 Introduction 437 11.2 Performance Requirements of Materials 440 11.3 The Materials Selection Process 451 11.4 Sources of Information on Material Properties 455 11.5 Cost of Materials 460 11.6 Overview of Methods of Materials Selection 462 11.7 Material Performance Indices 463 11.8 Materials Selection with Decision Matrices 471 11.9 Selection with Computer-Aided Databases 476 11.10 Design Examples 477 11.11 Summary 481 New Terms and Concepts 482 Bibliography 483 Problems and Exercises 483 Chapter 12 Design with Materials 487 12.1 Introduction 487 12.2 Design for Brittle Fracture 488 12.3 Design for Fatigue Failure 494 12.4 Design for Corrosion Resistance 506 12.5 Design Against Wear 511 12.6 Design with Plastics 516 12.7 Summary 523 ddiiee9988114444__ffmm__ii--xxiivv..iinndddd iixx 11//1133//1122 99::5533 AAMM