The Mechanical Design Process

by Ullman, David

• ISBN13: 9780072975741
• ISBN10: 0072975741
• Edition: 4th
• Format: Hardcover
• Copyright: 2009-02-02
• Publisher: McGraw-Hill Education

Summary

The fourth edition ofThe Mechanical Design Processcombines a practical overview of the design process with case material and real-life engineering insights. Ullman's work as an innovative designer comes through consistently, and has made this book a favorite with readers...This book conveys the "flavor" of design, addressing both traditional engineering topics as well as real-world issues like creative thinking, synthesis of ideas, visualization, teamwork, sense of customer needs and product success factors, and the financial aspects of design alternatives, in a practical and motivating manner. The Industrial Clamp brings the design stages and concepts to life, and shows the actual steps taken to generate design ideas and bring them to fruition. Approaches to concept generation, including TRIZ and axiomatic design, are given strong coverage...This text is appropriate primarily for the Senior Design course taken by mechanical engineering students, though it can also be used in design courses offered earlier in the curriculum. Working engineers also find it to be a readable, practical overview of the modern design process..

Table of Contents

Preface	p. xi
Why Study the Design Process?	p. 1
Introduction	p. 1
Measuring the Design Process with Product Cost, Quality, and Time to Market	p. 3
The History of the Design Process	p. 8
The Life of a Product	p. 10
The Many Solutions for Design Problems	p. 15
The Basic Actions of Problem Solving	p. 17
Knowledge and Learning During Design	p. 19
Design for Sustainability	p. 20
Summary	p. 21
Sources	p. 22
Exercises	p. 22
Understanding Mechanical Design	p. 25
Introduction	p. 25
Importance of Product Function, Behavior, and Performance	p. 28
Mechanical Design Languages and Abstraction	p. 30
Different Types of Mechanical Design Problems	p. 33
Constraints, Goals, and Design Decisions	p. 40
Product Decomposition	p. 41
Summary	p. 44
Sources	p. 44
Exercises	p. 45
On the Web	p. 45
Designers and Design Teams	p. 47
Introduction	p. 47
The Individual Designer: A Model of Human Information Processing	p. 48
Mental Processes That Occur During Design	p. 56
Characteristics of Creators	p. 64
The Structure of Design Teams	p. 66
Building Design Team Performance	p. 72
Summary	p. 78
Sources	p. 78
Exercises	p. 79
On the Web	p. 80
The Design Process and Product Discovery	p. 81
Introduction	p. 81
Overview of the Design Process	p. 81
Designing Quality into Products	p. 92
Product Discovery	p. 95
Choosing a Project	p. 101
Summary	p. 109
Sources	p. 110
Exercises	p. 110
On the Web	p. 110
Planning for Design	p. 111
Introduction	p. 111
Types of Project Plans	p. 113
Planning for Deliverables The Development of Information	p. 117
Building a Plan	p. 126
Design Plan Examples	p. 134
Communication During the Design Process	p. 137
Summary	p. 141
Sources	p. 141
Exercises	p. 142
On the Web	p. 142
Understanding the Problem and the Development of Engineering Specifications	p. 143
Introduction	p. 143
Step 1: Identify the Customers: WhoAreThey?	p. 151
Step 1: Determine the Customers' Requirements: What Do the Customers Want?	p. 151
Step 3: Determine Relative Importance of the Requirements: Who Versus What	p. 155
Step 4: Identify and Evaluate the Competition: How Satisfied Are the Customers Now 7	p. 157
Step 5: Generate Engineering Specifications: How Will the Customers' Requirement Be Met?	p. 158
Step 6: Relate Customers' Requirements to Engineering Specifications: How to Measure What?	p. 163
Step 7: Set Engineering Specification Targets and Importance: How Much Is Good Enough?	p. 164
Step 8: Identify Relationships Between Engineering Specifications: How Are the Hows Dependent on Each Other?	p. 166
Further Comments on QFD	p. 168
Summary	p. 169
Sources	p. 169
Exercises	p. 169
On the Web	p. 170
Concept Generation	p. 171
Introduction	p. 171
Understanding the Function of Existing Devices	p. 176
A Technique for Designing with Function	p. 181
Basic Methods of Generating Concepts	p. 189
Patents as a Source of Ideas	p. 194
Using Contradictions to Generate Ideas	p. 197
The Theory of Inventive Machines, TRIZ	p. 201
Building a Morphology	p. 204
Other Important Concerns During Concept Generation	p. 208
Summary	p. 209
Sources	p. 209
Exercises	p. 211
On the Web	p. 211
Concept Evaluation and Selection	p. 213
Introduction	p. 213
Concept Evaluation Information	p. 215
Feasibility Evaluations	p. 218
Technology Readiness	p. 219
The Decision Matrix-Pugh's Method	p. 221
Product, Project, and Decision Risk	p. 226
Robust Decision Making	p. 233
Summary	p. 239
Sources	p. 239
Exercises	p. 240
On the Web	p. 240
Product Generation	p. 241
Introduction	p. 241
BOMs	p. 245
Form Generation	p. 246
Materials and Process Selection	p. 264
Vendor Development	p. 266
Generating a Suspension Design for the Marin 2008 Mount Vision Pro Bicycle	p. 269
Summary	p. 276
Sources	p. 276
Exercises	p. 277
On the Web	p. 278
Product Evaluation for Performance and the Effects of Variation	p. 279
Introduction	p. 279
Monitoring Functional Change	p. 280
The Goals of Performance Evaluation	p. 281
Trade-Off Management	p. 284
Accuracy, Variation, and Noise	p. 286
Modeling for Performance Evaluation	p. 292
Tolerance Analysis	p. 296
Sensitivity Analysis	p. 302
Robust Design by Analysis	p. 305
Robust Design Through Testing	p. 308
Summary	p. 313
Sources	p. 313
Exercises	p. 314
Product Evaluation: Design For Cost, Manufacture, Assembly, and Other Measures	p. 315
Introduction	p. 315
DFC-Design For Cost	p. 315
DFV-Design For Value	p. 325
DFM-Design For Manufacture	p. 328
DFA-Design-For-Assembly Evaluation	p. 329
DFR-Design For Reliability	p. 350
DFT and DFM-Design For Test and Maintenance	p. 357
DFE-Design For the Environment	p. 358
Summary	p. 360
Sources	p. 361
Exercises	p. 361
On the Web	p. 362
Wrapping Up the Design Process and Supporting the Product	p. 363
Introduction	p. 363
Design Documentation and Communication	p. 366
Support	p. 368
Engineering Changes	p. 370
Patent Applications	p. 371
Design for End of Life	p. 375
Sources	p. 378
On the Web	p. 378
Properties of 25 Materials Most Commonly Used in Mechanical Design	p. 379
Introduction	p. 379
Properties of the Most Commonly used Materials	p. 380
Materials Used in Common Items	p. 393
Sources	p. 394
Normal Probability	p. 397
Introduction	p. 397
Other Measures	p. 401
The Factor of Safety as a Design Variable	p. 403
Introduction	p. 403
The Classical RuIe-of-Thumb Factor of Safety	p. 405
The Statistical, Reliability-Based, Factor of Safety	p. 406
Sources	p. 414
Human Factors in Design	p. 415
Introduction	p. 415
The Human in the Workspace	p. 416
The Human as Source of Power	p. 419
The Human as Sensor and Controller	p. 419
Sources	p. 426
Index	p. 427
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