Gwyther / Brown / Williams Mechanical Engineering Science

In SI Units
1. Auflage 2014
ISBN: 978-1-4831-8324-4
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 310 Seiten, Web PDF

0.1 Mechanical Engineering Science covers various fundamental concepts that are essential in the practice of mechanical engineering. The title is comprised of 19 chapters that detail various topics, including chemical and physical laws. The coverage of the book includes Newtonian laws, mechanical energy, friction, stress, and gravity. The text also discusses the chemical aspects of mechanical engineering, which include gas laws, states of matter, and fuel combustion. The last chapter tackles concerns in laboratory experiments. The book will be of great use to students of mechanical engineering. The text will also serve professional engineers as a reference.

Autoren/Hrsg.

Gwyther, J. L.

Brown, W. D.

Williams, G.

Inhaltsverzeichnis

1;Front Cover;1
2;0.1 Mechanical Engineering Science;4
3;Copyright Page;5
4;Table of
Contents;8
5;Preface;6
6;Chapter
1. Introduction;10
6.1;Aims and scope of this book;10
7;Chapter
2. The equations of motion;12
7.1;Speed conversions;14
7.2;The equations of motion;14
7.3;Speed-time graph;16
7.4;Solution;18
7.5;Vertical motion;18
7.6;Vertical projection;20
7.7;Horizontal projection;22
7.8;Angular motion;24
7.9;Angular displacement;25
7.10;Angular velocity;26
7.11;Angular acceleration;26
7.12;The equations of angular motion;27
7.13;Relative velocity;31
7.14;Summary;36
7.15;Exercises;38
8;Chapter 3.
Newton's laws of motion;40
8.1;Absolute units of force;40
8.2;Momentum;42
8.3;Newton's laws of motion;44
8.4;Impulse;49
8.5;Summary;50
8.6;Exercises;51
9;Chapter 4.
Mechanical energy;53
9.1;The units of mechanical energy;55
9.2;Conservation of energy;56
9.3;Summary;56
9.4;Exercises;57
10;Chapter 5.
Motion in a circular path;58
10.1;Kinetic energy of rotation;58
10.2;The flywheel;59
10.3;Centripetal acceleration;60
10.4;Centripetal force;63
10.5;Centrifugal force;63
10.6;Summary;64
10.7;Exercises;65
11;Chapter 6. Friction and the inclined plane;67
11.1;Limiting friction;67
11.2;The laws of friction for dry surfaces;68
11.3;Coefficient of friction;69
11.4;Friction and the inclined plane;71
11.5;The resultant of two perpendicular forces;73
11.6;Resolution of forces;74
11.7;Resolved part as a projected length;75
11.8;Geometrical and Graphical solutions;88
11.9;Summary;91
11.10;Exercises;92
12;Chapter 7.
Friction and the machine;94
12.1;Mechanical advantage;94
12.2;Velocity ratio;94
12.3;Efficiency;94
12.4;Law of a machine;96
12.5;Actual mechanical advantage;96
12.6;Limiting efficiency;96
12.7;The wedge;98
12.8;Some simple lifting mechanisms—Pulleys;104
12.9;A further pulley system;106
12.10;Differential pulleys—The differential wheel and axle.Weston's block;110
12.11;Overhauling;112
12.12;Winches;114
12.13;Screw threads;116
12.14;Tightening the nut on a bolt;117
12.15;Screw jack;118
12.16;Reducing the effect of friction;120
12.17;Lubrication;120
12.18;Work done by a force. Power;121
12.19;Power units: the horsepower and the watt;121
12.20;Work done by a torque;122
12.21;Friction in a plain bearing;123
12.22;Transmission of power by belts;124
12.23;Plate (or disc) clutch;127
12.24;Friction brakes;128
12.25;Summary;131
12.26;Exercises;134
13;Chapter 8. Equilibrium of forces and plane frameworks;137
13.1;Two opposing forces;137
13.2;Three parallel forces;138
13.3;Three non-parallel forces;139
13.4;Reactions;139
13.5;Co-planar concurrent forces;145
13.6;Co-planar non-concurrent forces;146
13.7;Co-planar parallel forces;147
13.8;Bow's notation;150
13.9;Simple framed structures;151
13.10;Summary;160
13.11;Exercises;161
14;Chapter 9. Mechanical properties of engineering materials;164
14.1;Tensile test of a mild steel specimen;167
14.2;Hooke's law;168
14.3;Ultimate tensile stress;169
14.4;Maximum allowable stress;170
14.5;Shear force;172
14.6;Punching a hole in a plate;174
14.7;Summary;175
14.8;Exercises;176
15;Chapter 10. Beams—shearing force and bending moment;178
15.1;Types of beam;178
15.2;Types of load;179
15.3;Shearing force in a beam;180
15.4;Shearing force diagram;182
15.5;1. Simply supported beam;182
15.6;2. Cantilever;185
15.7;Summary;186
15.8;Bending moment;186
15.9;Convention;187
15.10;Bending moment diagrams;188
15.11;Simply supported beam;189
15.12;Cantilever;191
15.13;Summary;193
15.14;Calculation of the magnitudes of the reactions;193
15.15;Summary;202
15.16;Exercises;202
16;Chapter 11. Centres of gravity and centroids;204
16.1;Centre of gravity;204
16.2;Centroid;207
16.3;Tabular solution of problems;208
16.4;Summary;214
16.5;Exercises;215
17;Chapter 12.
The laws of a perfect gas;220
17.1;Volume;220
17.2;Pressure;220
17.3;Temperature;222
17.4;The gas laws;224
17.5;Boyle's Law;224
17.6;Charles' law;225
17.7;The combined law;226
17.8;The characteristic equation of a perfect gas;227
17.9;Summary;230
17.10;Exercises;231
18;Chapter 13. Properties of water and steam;233
18.1;Internal energy;233
18.2;Saturation temperature;234
18.3;Effect of pressure;234
18.4;Volume of steam;235
18.5;Enthalpy;235
18.6;Specific heat;235
18.7;Steam tables;236
18.8;Specific enthalpy of water;237
18.9;Latent heat of steam;237
18.10;Specific enthalpy of dry saturated steam;237
18.11;Dryness fraction;238
18.12;Specific enthalpy of superheated steam;238
18.13;Specific volume of steam;238
18.14;Summary;240
18.15;Exercises;242
19;Chapter 14.
Steam plant;244
19.1;1. The main circuit for steam;244
19.2;2. The cooling water circuit;244
19.3;Boilers;245
19.4;Boiler efficiency;246
19.5;Condensers;248
19.6;Heat exchange in a condenser;249
19.7;Summary;251
19.8;Exercises;251
20;Chapter 15. Internal combustion engines;253
20.1;Piston engines;253
20.2;Gas turbines;254
21;Chapter 16.
Engine efficiencies;256
21.1;Indicator diagram;256
21.2;Indicated horsepower;259
21.3;Working strokes;259
21.4;Brake power;259
21.5;Mechanical efficiency;260
21.6;Thermal efficiency;260
21.7;Summary;262
21.8;Exercises;263
22;Chapter 17.
Combustion of fuels;265
22.1;Chemical symbols;266
22.2;Fuels;266
22.3;Chemical equations;266
22.4;Atmospheric air;267
22.5;Atomic weight;267
22.6;Molecular weights;268
22.7;The combustion of carbon and hydrogen;268
22.8;Minimum weight of air required;269
22.9;Products of combustion;270
22.10;Summary;273
22.11;Exercises;274
23;Chapter 18.
Liquids at rest;275
23.1;Density;275
23.2;Relative density;276
23.3;Viscosity;276
23.4;Incompressibility;276
23.5;Surface tension;276
23.6;Pressure;277
23.7;Pressure due to the weight of a liquid;277
23.8;Total pressure;278
23.9;Pressure on the sides of a tank;279
23.10;Total thrust;279
23.11;Centre of Pressure of a submerged rectangular lamina;281
23.12;Transmission of fluid pressure in a pipe;282
23.13;A note on Archimedes' principle;286
23.14;Summary;287
23.15;Exercises;289
24;Chapter 19.
Laboratory experiments;291
24.1;Writing-up the results;292
24.2;Answers to additional exercises;297
25;Index;307