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出版社：北京航空航天大學出版社 ISBN：9787512431485 商品編碼：10020404688387 包裝：平裝-膠訂 開本：26開 出版時間：2020-08-01 頁數：10 代碼：79
"| 商品基本信息，請以下列介紹為準 | | 商品名稱： | 機械設計:英文版 | | 作者： | 宋梅利，祖莉，梁醫 主編 | | 代碼： | 79.0 | | 出版社： | 北京航空航天大學出版社 | | 出版日期： | 2020-08-01 | | ISBN： | 9787512431485 | | 印次： | | | 版次： | null | | 裝幀： | | | 開本： | 26開 |
| 內容簡介 | | his book is one of the excellent textbooks for colleges and universities of Jiangsu Province in 2018, which is based on the demand for mechanical engineering field in teaching reform. It is designed to be used as the basic course for the undergraduate students in mechanical design. There are fifteen chapters in this book .Its coverage includes introduction；strength of mechanical parts；friction, wear and lubrication；threaded joints；axle and hub connections；rivetings,weldings and bondings；power screws；belt drives；chain drives；gear drives；worm gear transmission；shafts；sliding bearings；rolling-element bearings；couplings, clutches and brakes. Homework problems and projects involving design and analysis provide a basis for the course to follow. At the end, the text is supplemented by a glossary of terms. This book can be used as textbooks for the course of machine elements in mechanical design or a reference for students, teachers and engineers specializing in mechanical engineering. |
| 目錄 | | Chapter 1 Introduction 1 1.1 The Objectives and Tasks of the Course 1 1.2 Basic Requirements and Design Procedures 2 1.2.1 Basic requirements 2 1.2.2 Procedures for mechanical design 4 1.3 Failure Modes and Design Criteria 6 1.3.1 Failure modes of mechanical parts 6 1.3.2 Criteria for mechanical parts 6 1.4 Common Materials and Their Selection Principle of Mechanical Parts 8 1.4.1 Common materials of mechanical parts 9 1.4.2 Materials selection principle 11 1.5 Modern Mechanical Design Theories and Methods 12 Internet Resources 13 Problems 14 Chapter 2 Strength of Mechanical Parts 15 2.1 Introduction 15 2.2 Wo Capacity Calculation Criteria for Mechanical Parts 16 2.2.1 Failure form of mechanical parts 16 2.2.2 Wo capacity calculation criteria 16 2.3 Common Materials for Mechanical Parts and Their Selections 18 2.3.1 Common materials for mechanical parts 19 2.3.2 Principles for selecting mechanical parts materials 22 2.4 Load and Stress Acting on Parts 24 2.4.1 Classification of load 24 2.4.2 Classification of stress 24 2.5 Strength Calculation 25 2.5.1 Strength of mechanical parts under static stress 25 2.5.2 Fatigue strength calculation of mechanical parts 27 2.5.3 Contact strength of mechanical parts 32 Internet Resources 34 Problems 34 Chapter 3 Friction, Wear and Lubrication 36 3.1 Introduction 36 3.2 Friction 37 3.2.1 Dry friction 39 3.2.2 Boundary friction (boundary lubrication) 40 3.2.3 Mixed friction (mixed lubrication) 41 3.2.4 Fluid friction (fluid lubrication) 42 3.3 Wear 42 3.3.1 Typical wear process 42 3.3.2 Types of wear 43 3.4 Lubrication 45 3.4.1 Main properties of lubricants 46 3.4.2 Viscosity law 50 3.4.3 Introduction to fluid lubrication 51 Internet Resources 52 Problems 52 Chapter 4 Threaded Joints 53 4.1 Introduction 53 4.1.1 Thread formation 53 4.1.2 Types and applications of screw 53 4.1.3 Main parameters of the thread 56 4.2 Types of Threaded Joints and Standards 57 4.2.1 Types of threaded joints 57 4.2.2 Standard threaded couplings 59 4.3 Pre-tightening and Anti-looseness of Threaded Joints 61 4.3.1 Pre-tightening of threaded joints 61 4.3.2 Anti-looseness of threaded joints 64 4.4 Strength Calculation for the Single Threaded Joints 66 4.4.1 Strength calculation of loose bolt connections 66 4.4.2 Strength calculation of tight bolt connections 67 4.4.3 Material and allowable stress of threaded couplings 73 4.5 Design and Force Analysis of Bolt Group Connections 75 4.5.1 Structural design of bolt group connections 75 4.5.2 Force analysis of bolt group connections 76 Internet Resources 79 Problems 79 Machine Elements in Mechanical Design Project 82 Chapter 5 Axle and Hub Connections 83 5.1 Key Connections 83 5.1.1 Types and applications 83 5.1.2 Selection and the strength calculation 86 5.2 Spline Connections 90 5.2.1 The type, characteristics and application of spline connections 90 5.2.2 The strength calculation of spline connections 92 5.3 Pin Connections 93 Internet Resources 95 Problems 95 Project 95 Chapter 6 Rivetings,Weldings and Bondings 97 6.1 Rivetings 97 6.1.1 Rivet joints 97 6.1.2 Failure forms and design of rivetings 98 6.2 Weldings 99 6.2.1 Types, characteristics and applications of weldings 99 6.2.2 Failure modes of welding 99 6.2.3 Design of welding parts 100 6.3 Bondings 102 6.3.1 The applications of bondings 102 6.3.2 Adhesive joints 102 6.3.3 Adhesives 103 6.3.4 Comparisons of bondings, rivetings and weldings 104 Internet Resources 104 Problems 104 Chapter 7 Power Screws 105 7.1 Types, Characteristics and Applications of Power Screws 105 7.2 Sliding Power Screws 106 7.2.1 The structure of sliding power screws 106 7.2.2 Design calculation of sliding power screws 107 7.3 Ball Screws Drives 110 7.3.1 Structure types and characteristics 110 7.3.2 Design and calculation of ball screws drives 112 Internet Resources 113 Problems 113 Project 114 Chapter 8 Belt Drives 116 8.1 Types and Characteristics of Belt Drives 116 8.1.1 Wo principle and characteristics of belt drives 116 8.1.2 Types and applications of belt drives 117 8.2 Analysis of Belt Drives 118 8.2.1 Force analysis of belt drives 118 8.2.2 Stress analysis of belts 120 8.2.3 Elastic slipping and creeping of belts 121 8.3 Design Calculation of Ordinary V-belt Drives 123 8.3.1 V-belt structures 123 8.3.2 Standard for ordinary V belts 124 8.3.3 Basic rated power of single V belt 125 8.3.4 Design steps and methods of V-belt drives 127 8.4 Design of V-belt Pulleys 132 8.4.1 Design requirements for V-belt pulleys 132 8.4.2 Materials of V-belt pulleys 132 8.4.3 Structure dimension of V-belt pulleys 132 8.5 Tension and Maintenance of Belt Drives 136 8.5.1 Tension of belts 136 8.5.2 Belt maintenance 137 8.6 Introduction of Other New Belt Drives 137 8.6.1 High speed belt drives 137 8.6.2 Toothed timing belt drives 138 8.6.3 V-ribbed belt drives 139 Internet Resources 139 Problems 139 Project 140 Chapter 9 Chain Drives 142 9.1 Introduction 142 9.2 Structure of Chains 143 9.2.1 Roller chains 143 9.2.2 Silent chains 145 9.3 Structure and Material of Sprockets 146 9.3.1 Basic parameters of sprockets 147 9.3.2 Sprocket tooth profile 148 9.3.3 Structure of sprockets 149 9.3.4 Material of sprockets 149 9.4 Geometric Parameters of Chain Drives 150 9.4.1 Number of pitches 150 9.4.2 Center distance 151 9.5 Motion Characteristics of Chain Drives 151 9.5.1 Kinematics of chain drives 151 9.5.2 Dynamical loads of chain drives 153 9.6 Load Analysis of Chain Drives 154 9.7 Failure Modes and Carrying Capacity of Chain Drives 155 9.7.1 The failure modes of chain drives 155 9.7.2 Carrying capacity of chain drives 156 9.8 Chain Drives Design 158 9.8.1 Design the pitch and number of strands 158 9.8.2 Design the number of teeth in two sprockets and speed ratio 160 9.8.3 Design the number of links and center distance 161 9.8.4 Design the structure of the small sprocket 161 9.9 Layouts, Tension and Lubrication of Chain Drives 162 9.9.1 Layout of chain drives 162 9.9.2 Tension of chain drives 162 9.9.3 Lubrication of chain drives 163 Internet Resources 165 Problems 166 Project 167 Chapter 10 Gear Drives 168 10.1 Introduction 168 10.2 The Failure Modes and Design Rules of Gear Drives 170 10.2.1 Failure modes of gears 170 10.2.2 Design criteria 173 10.3 Materials and Heat Treatment of Gears 174 10.3.1 Steel 175 10.3.2 Cast iron 176 10.3.3 Bronze 176 10.3.4 Nonmetallic material 176 10.4 The Calculated Load for Gear Drives 176 10.4.1 Application factor 177 10.4.2 Dynamic factor 177 10.4.3 Axial load distribution factor 178 10.4.4 Load distribution factor across teeth 182 10.5 Strength Calculation of Standard Spur Gears 183 10.5.1 Force analysis 183 10.5.2 Calculation of spur teeth bending fatigue strength 184 10.5.3 Calculation of spur teeth contact fatigue strength 186 10.5.4 Tips for gear strength calculation 189 10.6 Design Parameters, Permissible Stress and Accuracy Choice of Gears 190 10.6.1 Design parameters 190 10.6.2 Permissible stress 191 10.6.3 The degree of gear precision 196 10.7 Strength Calculation of Standard Helical Gears 201 10.7.1 Force analysis 201 10.7.2 Calculation of helical teeth bending fatigue strength 204 10.7.3 Calculation of helical teeth contact fatigue strength 205 10.8 Strength Calculation of Standard Bevel Gears 211 10.8.1 Force analysis 211 10.8.2 Calculation of bevel teeth bending fatigue strength 212 10.8.3 Calculation of bevel teeth contact fatigue strength 212 10.9 Strength Characteristic of Modified Gears 213 10.10 Structural Design of Gears 214 10.10.1 Gear shafts 215 10.10.2 Solid gears 215 10.10.3 Web gears 216 10.10.4 Gears with crossed spokes 217 10.10.5 Combined gears 217 10.11 Lubrication of Gear Drives 218 10.11.1 Lubrication method 218 10.11.2 Lubricant selection 219 Internet Resources 220 Problems 220 Projects 222 Chapter 11 Worm Gear Transmission 224 11.1 Summary 224 11.1.1 The types of worm transmission 224 11.1.2 The characteristics of worm transmission 225 11.2 The Main Parameters and Geometric Dimensions of Common Cylindrical Worm Transmission 225 11.2.1 Main parameters of common cylindrical worm transmission 225 11.2.2 Geometric dimension calculation of worm transmission 229 11.3 Motion and Force Analysis of Worm Transmission 230 11.3.1 Motion analysis of worm transmission 230 11.3.2 Force analysis of worm transmission 231 11.4 The Failure Mode, Material and Structure of Worm Transmission 232 11.4.1 Failure forms and design criteria of worm transmission 232 11.4.2 Common materials for worm transmission 233 11.4.3 The structure of common cylindrical worm and worm wheel 233 11.5 Strength analysis of worm transmission 234 11.6 Calculation of Efficiency, Lubrication and Thermal Balance of Worm Transmission 236 11.6.1 The efficiency of worm transmission 236 11.6.2 Heat balance calculation of worm transmission 238 Internet Resources 241 Problems 241 Project 243 Chapter 12 Shafts 244 12.1 Introduction 244 12.1.1 Application and classification of shafts 244 12.1.2 Shaft materials 246 12.1.3 Introduction of design content 248 12.2 Structural Design of Shafts 249 12.2.1 The arrangement of parts on the shaft 249 12.2.2 Positioning of parts on the shaft 250 12.2.3 Determine the diameter and length of shaft segments 253 12.2.4 Processability of shaft structure 254 12.3 Strength Calculation of Shafts 254 12.3.1 Torsional strength 254 12.3.2 Bending and torsional strength 256 12.3.3 Safety factor 258 12.4 Stiffness and Vibration Stability of Shafts 259 12.4.1 Stiffness of shafts 259 12.4.2 Vibration stability and critical speed of shafts 260 12.5 Measures to Improve the Strength and Stiffness of Shafts 268 12.5.1 Reduce the stress concentration on shafts 268 12.5.2 Arrange parts on the shaft to reduce load on shafts 269 12.5.3 Improve parts structure to reduce load on shafts 270 12.5.4 Choose a proper loading mode to reduce load on shafts 270 12.5.5 Improve the surface quality to enhance the fatigue strength of shafts 271 Internet Resources 271 Problems 271 Project 273 Chapter 13 Sliding Bearings 275 13.1 Introduction 275 13.2 Type and Structure of Sliding Bearings 276 13.2.1 The classification of sliding bearings 276 13.2.2 The main structural form of radial sliding bearings 277 13.3 Sliding Bearing Material and Bearing Structure 279 13.3.1 The material of the sliding bearings 279 13.3.2 Bearing structure 283 13.4 Lubrication of Sliding Bearings 285 13.4.1 The selection of lubricant 285 13.4.2 Lubrication methods 288 13.5 Calculation of Non-liquid-lubricated Sliding Bearings 289 13.5.1 Radial sliding bearings 290 13.5.2 Thrust sliding bearings 291 13.6 Design and Calculation of Hydrodynamic Lubrication Radial Sliding Bearings 292 13.6.1 Basic equation of fluid dynamic lubrication 292 13.6.2 Oil wedge bearing mechanism 294 13.6.3 Establishment process of liquid dynamic lubrication state 295 13.6.4 Geometric relations and bearing capacity of radial sliding bearings 295 13.6.5 Bearing parameter selection 299 13.7 Introduction to Other Types of Sliding Bearings 300 13.7.1 Multi-oil wedge sliding bearings 300 13.7.2 Hydro-static bearings 302 13.7.3 Gas bearings 303 13.7.4 Magnetic bearings 303 Internet Resources 304 Problems 304 Chapter 14 Rolling-Element Bearings 306 14.1 Introduction 306 14.1.1 Structure of rolling-element bearings 306 14.1.2 Material of rolling-element bearings 307 14.1.3 Characteristics of rolling-element bearings 307 14.2 Types and Selection of Rolling-Element Bearings 308 14.2.1 Types and characteristics of rolling-element bearings 308 14.2.2 Code of rolling-element bearings 311 14.2.3 Selection of rolling-element bearings 314 14.3 Force Analysis, Failure Modes and Calculation Criterion of Rolling-Element Bearings 315 14.3.1 Load distribution of rolling-element bearings 315 14.3.2 Load and stress of bearing elements 319 14.3.3 Failure modes and calculation criteria of rolling-element bearings 320 14.4 Dynamic Load and Life Calculation of Rolling Bearings 321 14.4.1 Basic rating life and basic dynamic load rating 321 14.4.2 Dynamic equivalent load 321 14.4.3 Fatigue life calculation of rolling bearings 322 14.4.4 Thrust load calculation of angular contact ball bearings and tapered roller bearings 323 14.5 Limit Speed of Rolling Bearings 325 14.6 Combined Structural Design of Rolling Bearings 328 14.6.1 Mounting arrangement of rolling bearings 329 14.6.2 Axial fixation of rolling bearings 330 14.6.3 Stiffness of the supporting structure and concentricity of the housing hole 332 14.6.4 Adjustment of rolling bearing clearance and axial position of the shaft 332 14.6.5 Rolling bearing fit 333 14.6.6 Preloading of rolling bearings 334 14.6.7 Assembly and disassembly of rolling bearings 335 14.6.8 Lubrication of rolling bearings 336 14.6.9 Seals of rolling bearings 337 Internet Resources 339 Problems 339 Project 340 Chapter 15 Couplings, Clutches and Brakes 342 15.1 Introduction 342 15.2 Couplings 343 15.2.1 Type, structure and characteristics of couplings 343 15.2.2 Coupling selection 350 15.3 Clutches 352 15.3.1 Mechanical clutches 352 15.3.2 Safety clutches 355 15.4 Brakes 355 15.4.1 Band brakes 355 15.4.2 Disc brakes 356 Internet Resources 356 Problems 356 Project 357 Appendix Glossary and Index 358 References 371 |
| 編輯推薦 | | （1）本書為“十三五”江蘇省高等學校教材 （2）本書配有課件供讀者參考 |
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