Machine Design /
- 1
- Mc Graw hill
- 677 páginas Ilustraciones, Tablas y Gráficas 21 cm x 15 cm
Incluye Referencias Bibliográficas
Preface v
1 Introduction 1
2 Machine-design Computations 7
3 Stress and Deflection Analysis 16
4 Stress Concentration in Machine Members 59
5 Design Criteria
81
6 Residual Stresses
109
7 Engineering Materials 122
8 Mechanical Fabrication and Processes
144
9 Detachable Fastenings
179
10 Springs 206
11 Pressure Cylinders
234
12 Translation Screws
249
13 Shafting 263
14 Belt Drives and Hoists 273
15 Power-transmission Chains 300
16 Shaft Couplings 313
17 Clutches and Brakes 322
18 Spur and Parallel Helical Gears 345
19 Gears for Nonparallel Shafts 378
20 Surface Finish, Friction, and Wear 399.
21 Sliding-contact Bearings 419
22 Rolling-contact Bearings 459
23 Metal Fits and Tolerances 481
24 Vibration and Vibration Control 498
25 Motor Selection 514
APPENDIX I Abbreviations 523
II Elements of Sections 525
III Bending-moment and Deflection Formulas 526
IV Values of d³/16 and d³/32 527
V Properties of Materials 528
VI Tensile Strength and Yield Point versus Brinell Hardness for Steel 529
VII Endurance Limit versus Tensile Strength 530
VIII Yield Points for Steel 531
IX Hardness Numbers Conversion Chart 533
X Curves for Stress-concentration Factors 534
XI WR for Rotating Bodies 550
XII Method for Determining Lewis Factor 551
XIII-A Graphical Integration 552
ESTRAND
XIII-B Shaft Deflection by Digital Computer 556
XIII-C Rupture-stress Diagram Curve for Elevated-temperature Systems 560
XIV Table of Wire Sizes 561
XV-A Decimal Equivalents of Fractions 562
XV-B Conversion Factors, U.S. and Metric Units 563
XVI Horsepower Ratings of USAS Standard Roller Chain, Single Strand 564
XVII Case Histories 573
Problems 589
Name Index 667
Subject Index 671
Mechanical engineering is the branch of engineering that is concerned with the conversion of energy and with the design of machines. The designer of machines is a versatile person, not a specialist, because he must have knowledge of science, "to know," and a knowledge of engineer-ing, "to produce." For instance, the design of the machinery for missile launching requires, in part, considerable knowledge of physics, mechanics, aerodynamics, performance of materials in high-intensity, short-time use, electronics, and safety requirements.
The engineering design process begins with the awareness of a human need or want. In Fig. 1-1, this is indicated as the GOAL (1). The goal should be stated in words as clearly as possible at this stage of the design process. When the goal is stated in general terms, it is then necessary to develop more specific and quantitative information which determines the TASK SPECIFICATION (2) necessary to achieve the goal. The next step is the framing of a CONCEPT (3) with which the final form
R. J. McCrory, The Design Method, Mech. Eng., May, 1963, p. 30.