Analysis and Design of Machine Elements

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.

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