Incorporating Chinese, European, and International standards and units of measurement, this book presents a classic subject in an up-to-date manner with a strong emphasis on failure analysis and prevention-based machine element design. It presents concepts, principles, data, analyses, procedures, and decision-making techniques necessary to design safe, efficient, and workable machine elements. Design-centric and focused, the book will help students develop the ability to conceptualize designs from written requirements and to translate these design concepts into models and detailed manufacturing drawings.
* Presents a consistent approach to the design of different machine elements from failure analysis through strength analysis and structural design, which facilitates students’ understanding, learning, and integration of analysis with design
* Fundamental theoretical topics such as mechanics, friction, wear and lubrication, and fluid mechanics are embedded in each chapter to illustrate design in practice
* Includes examples, exercises, review questions, design and practice problems, and CAD examples in each self-contained chapter to enhance learning
Analysis and Design of Machine Elements is a design-centric textbook for advanced undergraduates majoring in Mechanical Engineering. Advanced students and engineers specializing in product design, vehicle engineering, power machinery, and engineering will also find it a useful reference and practical guide.
Table des matières
Preface xvii
About the Companion Website xix
Part I Fundamentals of Design and Strength Analysis 1
1 An Overview of Machine Design 3
1.1 Introduction 3
1.2 Machine Design 5
1.3 Machine Element Design 9
1.4 Materials and Their Properties 15
1.5 Unit Systems 21
1.6 Standards and Codes 22
References 23
Problems 23
2 Strength of Machine Elements 25
2.1 Fluctuating Loads and Stresses 26
2.2 Static Strength 29
2.3 Fatigue Strength 32
2.4 Contact Strength 50
References 52
Problems 53
Part II Design Applications 57
3 Detachable Joints and Fastening Methods 59
3.1 Introduction 60
3.2 Screw Threads 61
3.3 Threaded Fastening Methods 64
3.4 Force Analysis of Multiply Bolted Joints 67
3.5 Strength Analysis 71
3.6 Design of Bolted Joints 76
References 83
Problems 84
4 Detachable Fastenings for Shaft and Hub 91
4.1 Keys 91
4.2 Splines 96
4.3 Pins 97
References 98
Problems 99
5 Permanent Connections 105
5.1 Riveting 105
5.2 Welding 109
5.3 Brazing, Soldering and Adhesive Bonding 113
References 115
Problems 115
6 Belt Drives 119
6.1 Introduction 120
6.2 Working Condition Analysis 124
6.3 Power Transmission Capacities 131
6.4 Design of Belt Drives 135
6.5 Installation and Maintenance 140
References 141
Problems 141
7 Chain Drives 147
7.1 Introduction 148
7.2 Working Condition Analysis 151
7.3 Power Transmission Capacities 155
7.4 Design of Chain Drives 157
7.5 Drive Layout, Tension and Lubrication 163
References 165
Problems 165
8 Gear Drives 171
8.1 Introduction 173
8.2 Working Condition Analysis 178
8.3 Strength Analysis for Spur Gears 182
8.4 Strength Analysis for Helical Gears 188
8.5 Strength Analysis for Bevel Gears 196
8.6 Design of Gear Drives 202
8.7 Structural Design of Gears 224
8.8 Lubrication and Efficiency 225
References 225
Problems 226
9 Wormgear Drives 233
9.1 Introduction 234
9.2 Working Condition Analysis 239
9.3 Load Carrying Capacities 242
9.4 Design of Wormgear Drives 246
9.5 Structural Design of Wormgear Drives 253
9.6 Lubrication of Wormgear Drives 253
References 254
Problems 254
10 Shafts 259
10.1 Introduction 260
10.2 Working Condition Analysis 262
10.3 Load Carrying Capacities 264
10.4 Design of Shafts 271
References 284
Problems 284
11 Rolling Contact Bearings 291
11.1 Introduction 292
11.2 Working Condition Analysis 298
11.3 Life Expectancy and Load Carrying Capacities 305
11.4 Design of Bearing Support Systems 310
References 321
Problems 322
12 Sliding Bearings 329
12.1 Introduction 330
12.2 Working Condition Analysis 332
12.3 Load Carrying Capacities 340
12.4 Design of Sliding Bearings 349
References 360
Problems 360
13 Couplings and Clutches 365
13.1 Introduction to Couplings 366
13.2 Design and Selection of Couplings 375
13.3 Introduction to Clutches 377
References 382
Problems 382
14 Springs 387
14.1 Introduction 388
14.2 Working Condition Analysis 392
14.3 Loading Carrying Capacities 396
14.4 Design of Springs 406
References 415
Problems 416
Index 419
A propos de l’auteur
WEI JIANG, PHD, is a senior member of the Chinese Mechanical Engineering Society, and a Registered Professional Engineer in China, with extensive industrial experience in design and manufacturing. She has taught Mechanical Design, Computer Aided Design, and advised Mechanical Design Projects, capstone design projects for over ten years at Dalian University of Technology. She also teaches a graduate course on Mechanical Strength with emphasis on stress analysis, fracture and fatigue analysis of machine elements.
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