机械设计：第4版

PATRⅠPrinciples of Design and Stress Analysis

1 The Nature of Mechanical Design

The Big Picture

You Are the Designer

1-1 Objectives of This Chapter

1-2 The Mechanical Design Process

1-3 Skills Needed in Mechanical Design

1-4 Functions, Design Requirements, and Evaluation Criteria

1-5 Example of the Integration of Machine Elements into a Mechanical Design

1-6 Computational Aids in This Book

1-7 Design Calculations

1-8 Unit Systems

References

Problems

2 Materials in Mechanical Design

The Big Picture

You Are the Designer

2-1 Objectives of This Chapter

2-2 Properties of Materials

2-3 Classification of Metals and Alloys

2-4 Variability of Material Properties Data

2-5 Carbon and Alloy Steel

2-6 Conditions for Steels and heat Treatment

2-7 Materials Selection

References

Problems

3 Design for Different Types of Loading

The Big Picture

3-1 Objectives of This Chapter

3-2 Types of Loading and Stress Ratio

3-3 Endurance Strength

3-4 Estimated Actual Endurance Strength,

3-5 Example Problems for Estimating Actual Endurance Strength

3-6 Design Philosophy

3-7 Design Factors

3-8 Predictions of Failure

3-9 Design Analysis Methods

3-10 General Design Procedure

3-11 Design Examples

3-12 Statistical Approaches to Design

3-13 Finite Life and Damage Accumulation Method

References

Problems

PATRⅡDesign of a Mechanical Drive

4 Belt Drives and Chain Drives

The Big Picture

You Are the Designer

4-1 Objectives of This Chapter

4-2 Types of Belt Drives

4-3 V-Belt Drives

4-4 V-Belt Drive Design

4-5 Chain Drives

4-6 Design of Chain Drives

References

Problems

5 Spur Gear Design

The Big Picture

You Are the Designer

5-1 Objectives of This Chapter

5-2 Spur Gear Nomenclature and Gear-Tooth Features

5-3 Forces, Torque, and Power in Gearing

5-4 Gear Manufacture

5-5 Gear Quality

5-6 Allowable Stress Numbers

5-7 Metallic Gear Materials

5-8 Stresses in Gear Teeth

5-9 Selection of Gear Material Based on Bending Stress

5-10 Pitting Resistance of Gear Teeth

5-11 Selection of Gear Material Based on Contact Stress

5-12 Design of Spur Gears

5-13 Gear Design for the Metric Module System

5-14 Computer-Aided Spur Gear Design and Analysis

5-15 Use of the Spur Gear Design Spreadsheet

5-16 Power-Transmitting Capacity

5-17 Practical Considerations for Gears and Interfaces with Other Elements

References

Problems

6 Helical Gears, Bevel Gears, and Wormgearing

7 Keys, Couplings, and Seals

8 Shaft Design

9 Rolling Contact Bearings

10 Completion of the Design of a Power Transmission

PATRⅢDesign Details and Other Machine Elements

11 Plain Surface Bearings

12 Fasteners

13 Springs

14 Machine Frames, Bolted Connections, and Welded Joints

15 Motion Control: Clutches and Brakes

16 Design Projects

Appendices

Appendix 1 Preferred Basic Sizes and Screw Threads

Appendix 2 Design Properties of Carbon and Alloy Steels

Appendix 3 Properties of Heat-Treated Steels

Appendix 4 Properties of Carburized Steels

Appendix 5 Beam-Deflection Formulas

Appendix 6 Stress Concentration Factors

Appendix 7 Conversion Factors

Appendix 8 Hardness Conversion Table

Answers to Selected Problems

本书是美国Robert L. Mott教授所著Machine Elements in Mechanical Design（Fourth Edition，2004）的缩编版。缩编者在保持原书特色和风格的前提下，根据我国机械设计课程的教学要求，删去了原书中与我国其他先修课程重复的部分内容，将原书23章缩编为16章，并将计量单位转换为公制。缩编后的内容包括：机械设计概论，带传动与链传动，齿轮传动与蜗杆传动，轴，轴联接件（键、联轴器、密封），滚动轴承，滑动轴承，紧固件，弹簧，机座，离合器与制动器，设计大作业等。
　　本书可作为高等学校工科机械类专业机械设计课程的双语教学教材，也可供从事机械专业的教师、研究生或工程技术人员参考。