Suchergebnisse

Preston is concerned with the extent to which fundamental changes in the political landscape have altered the received ideas that define political cultures around the world. Issues include the rise of Pacific Asia and the realignment of Europe.

1. Materials (A) -- 1.1 Heat treatment -- 1.2 Materials and testing -- 1.3 Metal fatigue -- 1.4 Safety factor -- 1.5 Shear strain -- 1.6 Punching holes in a material -- 1.7 Bending and torsion -- Exercises -- 2. Engine indicator diagrams (B2) -- 2.1 Engine indicators -- 2.2 Converting an indicator diagram -- 2.3 Interpretation of indicator diagrams -- 3. Combustion processes (B3) -- 3.1 Specific heat capacity of a gas -- 3.2 Expansion and compression of gases -- 3.3 Engine temperature and pressure calculations -- 3.4 Efficiency of an engine -- 3.5 General comparison between petrol and compression ignition engines -- 3.6 Octane rating -- 3.7 Cetane number and diesel index -- 3.8 Detonation -- 3.9 Fuel additives -- 3.10 Volumetric efficiency -- Exercises -- 4. Air-fuel ratios and exhaust products (B4) -- 4.1 Air-fuel ratios: petrol engine -- 4.2 Air-fuel ratios: CI oil engine -- 4.3 Determination of air-fuel ratios -- 4.4 Mixture strength and side effects -- 4.5 Air-fuel ratio and power output -- 4.6 Combustion calculations -- 4.7 Consumption loop or hook curve -- Exercises -- 5. Archimedes' Principle (B5) -- 5.1 Hydrostatics and hydraulics -- 5.2 Archimedes' principle -- 5.3 Floating bodies -- Exercises -- 6. Fluids and energy (B6) -- 6.1 Pressure -- 6.2 The manometer -- 6.3 Energy of liquids -- 6.4 Bernoulli's law -- 6.5 Quantity flow -- 6.6 The Venturi unit -- 6.7 Actual flow of liquids through an orifice -- 6.8 Gas velocities -- Exercises -- 7. Hydraulic mechanisms and machines (B7) -- 7.1 Hydraulic machines -- 7.2 Hydraulic intensifier -- 7.3 Hydraulic brakes -- 7.4 The law of a machine -- Exercises -- 8. Variable torque, force and work done (C8) -- 8.1 Variable torque -- 8.2 Work done -- 8.3 Couples -- Exercises -- 9. Angular motion (C9) -- 9.1 Angular velocity and angular acceleration -- 9.2 Power -- Exercises -- 10. Inertia force, mass and acceleration (C10) -- 10.1 Mass -- 10.2 Newton's first and second laws of motion -- 10.3 Momentum -- 10.4 Braking efficiency and stopping distance -- 10.5 Newton's third law of motion -- Exercises -- 11. Potential and kinetic energy (C11) -- 11.1 Potential energy -- 11.2 Kinetic energy -- 11.3 Conservation of energy -- 11.4 Conservation of momentum -- 11.5 Energy loss when bodies collide -- 11.6 Moment of inertia -- 11.7 Kinetic energy of a rotating body -- 11.8 Radius of gyration -- Exercises -- 12. Tractive effort and tractive resistance (C12) -- 12.1 Tractive effort -- 12.2 Tractive resistance -- 12.3 Undergeared and overgeared vehicles -- 12.4 Engine characteristics and gear ratios -- 12.5 Constant power and tractive-effort/road-speed curves -- 12.6 Data and methods for setting final drive and gearbox ratios -- Exercises -- 13. Centripetal force and balancing (C13) -- 13.1 Centripetal acceleration -- 13.2 Centripetal and centrifugal force -- 13.3 Balancing of rotating masses -- 13.4 Piston movement and inertia -- 13.5 Engine balance -- Exercises -- 14. Stability of vehicles in curved paths (C14) -- 14.1 Vehicle on curved level road -- 14.2 Vehicle on curved banked track -- 14.3 Vehicle on a reversed banked track -- 14.4 Arched or hump-back bridges -- 14.5 Road dip or depression -- Exercises -- 15. Transference of wheel loading (C15) -- 15.1 Vehicle weight transfer: retardation -- 15.2 Vehicle weight transfer: acceleration -- 15.3 Maximum possible acceleration: level road -- 15.4 Transferred weight: vehicle in curved path -- Exercises -- 16. Simple harmonic motion (C16) -- 16.1 The conical pendulum -- 16.2 The Watt centrifugal governor -- 16.3 The simple pendulum -- Exercises -- 17. Relative velocity (C17) -- 17.1 Definition and diagrams -- 17.2 Angular velocity of a link or lever -- 17.3 Relative velocity of points on a wheel -- Exercises -- Answers to Exercises.

1. Materials (A1) -- 1.1 Stress and strain -- 1.2 Hooke's Law and Young's Modulus -- 1.3 Testing of materials: load—extension graphs -- Exercises 1.1 -- 2. Heat -- 2.1 Linear and cubical expansion (B2) -- Exercises 2.1 -- 2.2 Sensible heat and latent heat (B3) -- 2.3 Specific heat capacity -- 2.4 Boiling point of liquids -- Exercises 2.2 -- 2.5 Elementary thermodynamics (B4) -- Exercises 2.3 -- 2.6 Compression ratios (B5) -- Exercises 2.4 -- 2.7 Engine power and efficiency (B6) -- Exercises 2.5 -- 2.8 Internal combustion engine cycles -- 2.9 Imep, bmep and mechanical efficiency -- Exercises 2.6 -- 2.10 Engine torque and brake power -- 2.11 Fuel consumption and thermal efficiency -- Exercises 2.7 -- 2.12 Engine testing and characteristic curves -- 2.13 Conservation of energy -- 2.14 Indicated power and mechanical efficiency -- Exercises 2.8 -- Exercises 2.9 -- 2.15 Fuel consumption and thermal efficiency -- 2.16 Ignition tests -- 2.17 Heat balance tests -- Exercises 2.10 -- 2.18 Fuels used in IC engines (B7) -- 3. Dynamics -- 3.1 Velocity and acceleration (C8) -- Exercises 3.1 -- 3.2 Free falling and projected bodies -- Exercises 3.2 -- 3.3 Angular and linear motion (C9) -- Exercises 3.3 -- 3.4 Friction and bearings (C10) -- Exercises 3.4 -- 3.5 Clutches -- Exercises 3.5 -- 3.6 Brakes -- Exercises 3.6 -- 4. Lubrication (D11) -- 4.1 Principles of bearings and their uses -- 4.2 Ball and roller bearings -- 4.3 Properties of lubricating oils -- 5. Statics -- 5.1 Triangle and polygon of forces (E13) -- 5.2 Piston, connecting rod and cylinder wall forces -- 5.3 Torque at the crankshaft -- 5.4 Piston displacement -- 5.5 Wheel balance -- Exercises 5.1 -- 5.6 Principle of moments (E14) -- 5.7 Centre of gravity -- Exercises 5.2 -- 5.8 Reaction of beam supports (E15) -- 5.9 Bending moments and shearing forces -- Exercises 5.3 -- 5.10 Springs and torsion bars (E16) -- Exercises 5.4 -- 5.11 Transmission and steering components (E17) -- Exercises 5.5 -- 6. Electricity (F18) -- 6.1 The secondary cell -- 6.2 Battery developments -- Exercises 6.1 -- 7. Miscellaneous exercises -- 7.1 Materials -- 7.2 Heat -- 7.3 Dynamics -- 7.4 Statics -- Answers to Exercises.