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A Textbook of Machine Design (S.I. Units) [A Textbook for the Students of B.E./B. Tech., U.P.S.C. (Engg. Services); Section 'B' of A.M.I.E. (I)]

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Book Information

Publisher:S. Chand & Company Ltd.
Published In:2012
ISBN-10:8121925371
ISBN-13:9788121925372
Binding Type:Paperback
Weight:3.74 lbs
Pages:pp. xvi + 1230, Illus. (Col.), Tables (Col.), Graphs (Col.), Index

The Title "A Textbook of Machine Design (S.I. Units) [A Textbook for the Students of B.E./B. Tech., U.P.S.C. (Engg. Services); Section 'B' of A.M.I.E. (I)]" is written by R.S. Khurmi. This book was published in the year 2012. The ISBN number 8121925371|9788121925372 is assigned to the Paperback version of this title. This book has total of pp. xvi + 1230 (Pages). The publisher of this title is S. Chand & Company Ltd.. We have about 1969 other great books from this publisher. A Textbook of Machine Design (S.I. Units) [A Textbook for the Students of B.E./B. Tech., U.P.S.C. (Engg. Services); Section 'B' of A.M.I.E. (I)] is currently Available with us.

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Contents

I. INTRODUCTION :
1. Definition
2. Classifications of Machine Design
3. General Considerations in Machine Design
4. General Procedure in Machine Design
5. Fundamental Units
6. Derived Units
7. System of Units
8. S.I Units (International System of Units)
9. Metre
10. Kilogram
11. Second
12. Presentation of Units and their Values
13. Rules for S.I. Units
14. Mass and Weight
15. Inertia
16. Laws of Motion
17. Force
18. Absolute and Gravitational Units of Force
19. Moment of a Force
20. Couple
21. Mass Density
22. Mass Moment of Inertia
23. Angular Momentum
24. Torque
25. Work
26. Power
27. Energy

II. Engineering MATERIALS AND THEIR PROPERTIES :
1. Introduction
2. Classification of Engineering Materials
3. Selection of Materials for Engineering Purposes
4. Physical Properties of Metals
5. Mechanical Properties of Metals
6. Ferrous Metals
7. Cast Iron
8. Types of Cast Iron
9. Alloy Cast Iron
10. Effect of Impurities on Cast Iron
11. Wrought Iron
12. Steel
13. Steels Designated on the Basis of Mechanical Properties
14. Steels Designated on the Basis of Chemical Composition
15. Effect of Impurities on Steel
16. Free Cutting Steels
17. Alloy Steels
18. Indian Standard Designation of Low and Medium Alloy Steels
19. Stainless Steel
20. Heat Resisting Steels
21. Indian Standard Designation of High Alloy Steels (Stainless Steel and Heat Resisting Steel)
22. High Speed Tool Steels
23. Indian Standard Designation of High Speed Tool Steel
24. Spring Steels
25. Heat Treatment of Steels
26. Non-ferrous Metals
27. Aluminium
28. Aluminium Alloys
29. Copper
30. Copper Alloys
31. Gun Metal
32. Lead
33. Tin
34. Bearing Metals
35. Zinc Base Alloys
36. Nickel Base Alloys
37. Non-metallic Materials

III. MANUFACTURING CONSIDERATIONS IN MACHINE DESIGN :
1. Introduction
2. Manufacturing Processes
3. Casting
4. Casting Design
5. Forging
6. Forging Design
7. Mechanical Working of Metals
8. Hot Working
9. Hot Working Processes
10. Cold Working
11. Cold Working Processes
12. Interchangeability
13. Important Terms Used in Limit System
14. Fits
15. Types of Fits
16. Basis of Limit System
17. Indian Standard System of Limits and Fits
18. Calculation of Fundamental Deviation for Shafts
19. Calculation of Fundamental Deviation for Holes
20. Surface Roughness and its Measurement
21. Preferred Numbers

IV. SIMPLE STRESSES IN MACHINE PARTS :
1. Introduction
2. Load
3. Stress
4. Strain
5. Tensile Stress and Strain
6. Compressive Stress and Strain
7. Young's Modulus or Modulus of Elasticity
8. Shear Stress and Strain
9. Shear Modulus or Modulus of Rigidity
10. Bearing Stress
11. Stress-strain Diagram
12. Working Stress
13. Factor of Safety
14. Selection of Factor of Safety
15. Stresses in Composite Bars
16. Stresses Due to Change in Temperature-Thermal Stresses
17. Linear and Lateral Strain
18. Poisson's Ratio
19. Volumetric Strain
20. Bulk Modulus
21. Relation between Bulk Modulus and Young's Modulus
22. Relation between Young's Modulus and Modulus of Rigidity
23. Impact Stress
24. Resilience

V. TORSIONAL AND BENDING STRESSES IN MACHINE PARTS :
1. Introduction
2. Torsional Shear Stress
3. Shafts in Series and Parallel
4. Bending Stress in Straight Beams
5. Bending Stress in Curved Beams
6. Principal Stresses and Principal Planes
7. Determination of Principal Stresses for a Member Subjected to Bi-axial Stress
8. Application of Principal Stresses in Designing Machine Members
9. Theories of Failure Under Static Load
10. Maximum Principal or Normal Stress Theory (Rankine's Theory)
11. Maximum Shear Stress Theory (Guest's or Tresca's Theory)
12. Maximum Principal Strain Theory (Saint Venant's Theory)
13. Maximum Strain Energy Theory (Haigh's Theory)
14. Maximum Distortion Energy Theory (Hencky and von Mises Theory)
15. Eccentric Loading-Direct and Bending Stresses Combined
16. Shear Stresses in Beams

VI. VARIABLE STRESSES IN MACHINE PARTS :
1. Introduction
2. Completely Reversed or Cyclic Stresses
3. Fatigue and Endurance Limit
4. Effect of Loading on Endurance Limit-load Factor
5. Effect of Surface Finish on Endurance Limit-Surface Finish Factor
6. Effect of Size on Endurance Limit-size Factor
7. Effect of Miscellaneous Factors on Endurance Limit
8. Relation between Endurance Limit and Ultimate Tensile Strength
9. Factor of Safety for Fatigue Loading
10. Stress Concentration
11. Theoretical or Form Stress Concentration Factor
12. Stress Concentration Due to Holes and Notches
13. Methods of Reducing Stress Concentration
14. Factors to be Considered while Designing Machine Parts to Avoid Fatigue Failure
15. Stress Concentration Factor for Various Machine Members
16. Fatigue Stress Concentration Factor
17. Notch Sensitivity
18. Combined Steady and Variable Stresses
19. Gerber Method for Combination of Stresses
20. Goodman Method for Combination of Stresses
21. Soderberg Method for Combination of Stresses
22. Combined Variable Normal Stress and Variable Shear Stress
23. Application of Soderberg's Equation

VII. PRESSURE VESSELS :
1. Introduction
2. Classification of Pressure Vessels
3. Stresses in a Thin Cylindrical Shell Due to an Internal Pressure
4. Circumferential or Hoop Stress
5. Longitudinal Stress
6. Change in Dimensions of a Thin Cylindrical Shell Due to an Internal Pressure
7. Thin Spherical Shells Subjected to an Internal Pressure
8. Change in Dimensions of a Thin Spherical Shell Due to an Internal Pressure
9. Thick Cylindrical Shell Subjected to an Internal Pressure
10. Compound Cylindrical Shells
11. Stresses in Compound Cylindrical Shells
12. Cylinder Heads and Cover Plates

VIII. PIPES AND PIPE JOINTS :
1. Introduction
2. Stresses in Pipes
3. Design of Pipes
4. Pipe Joints
5. Standard Pipe Flanges for Steam
6. Hydraulic Pipe Joint for High Pressures
7. Design of Circular Flanged Pipe Joint
8. Design of Oval Flanged Pipe Joint
9. Design of Square Flanged Pipe Joint

IX. RIVETED JOINTS :
1. Introduction
2. Methods of Riveting
3. Material of Rivets
4. Essential Qualities of a Rivet
5. Manufacture of Rivets
6. Types of Rivet Heads
7. Types of Riveted Joints
8. Lap Joint
9. Butt Joint
10. Important Terms Used in Riveted Joints
11. Caulking and Fullering
12. Failures of a Riveted Joint
13. Strength of a Riveted Joint
14. Efficiency of a Riveted Joint
15. Design of Boiler Joints
16. Assumptions in Designing Boiler Joints
17. Design of Longitudinal Butt Joint for a Boiler
18. Design of Circumferential Lap Joint for a Boiler
19. Recommended Joints for Pressure Vessels
20. Riveted Joint for Structural Use - joints of Uniform Strength (Lozenge Joint)
21. Eccentric Loaded Riveted Joint

X. WELDED JOINTS :
1. Introduction
2. Advantages and Disadvantages of Welded Joints Over Riveted Joints
3. Welding Processes
4. Fusion Welding
5. Thermit Welding
6. Gas Welding
7. Electric Arc Welding
8. Forge Welding
9. Types of Welded Joints
10. Lap Joint
11. Butt Joint
12. Basic Weld Symbols
13. Supplementary Weld Symbols
14. Elements of a Weld Symbol
15. Standard Location of Elements of a Welding Symbol
16. Strength of Transverse Fillet Welded Joints
17. Strength of Parallel Fillet Welded Joints
18. Special Cases of Fillet Welded Joints
19. Strength of Butt Joints
20. Stresses for Welded Joints
21. Stress Concentration Factor for Welded Joints
22. Axially Loaded Unsymmetrical Welded Sections
23. Eccentrically Loaded Welded Joints
24. Polar Moment of Inertia and Section Modulus of Welds

XI. SCREWED JOINTS :
1. Introduction
2. Advantages and Disadvantages of Screwed Joints
3. Important Terms Used in Screw Threads
4. Forms of Screw Threads
5. Location of Screwed Joints
6. Common Types of Screw Fastenings
7. Locking Devices
8. Designation of Screw Threads
9. Standard Dimensions of Screw Threads
10. Stresses in Screwed Fastening Due to Static Loading
11. Initial Stresses Due to Screwing Up Forces
12. Stresses Due to External Forces
13. Stress Due to Combined Forces
14. Design of Cylinder Covers
15. Boiler Stays
16. Bolts of Uniform Strength
17. Design of a Nut
18. Bolted Joints Under Eccentric Loading
19. Eccentric Load Acting Parallel to the Axis of Bolts
20. Eccentric Load Acting Perpendicular to the Axis of Bolts
21. Eccentric Load on a Bracket with Circular Base
22. Eccentric Load Acting in the Plane Containing the Bolts

XII. COTTER AND KNUCKLE JOINTS :
1. Introduction
2. Types of Cotter Joints
3. Socket and Spigot Cottar Joint
4. Design of Socket and Spigot Cotter Joint
5. Sleeve and Cotter Joint
6. Design of Sleeve and Cotter Joint
7. Gib and Cotter Joint
8. Design of Gib and Cotter Joint for Strap End of a Connecting Rod
9. Design of Gib and Cotter Joint for Square Rods
10. Design of Cotter Joint to Connect Piston Rod and Crosshead
11. Design of Cotter Foundation Bolt
12. Knuckle Joint
13. Dimensions of Various Parts of the Knuckle Joint
14. Methods of Failure of Knuckle Joint
15. Design Procedure of Knuckle Joint
16. Adjustable Screwed Joint for Round Rods (Turn Buckle)
17. Design of Turn Buckle

XIII. KEYS AND COUPLING :
1. Introduction
2. Types of Keys
3. Sunk Keys
4. Saddle Keys
5. Tangent Keys
6. Round Keys
7. Splines
8 Forces Acting on a Sunk Key
9. Strength of a Sunk Key
10. Effect of Keyways
11. Shaft Couplings
12. Requirements of A Good Shaft Coupling
13. Types of Shaft Couplings
14. Sleeve or Muff Coupling
15. Clamp or Compression Coupling
16. Flange Coupling
17. Design of Flange Coupling
18. Flexible Coupling
19. Bushed Pin Flexible Coupling
20. Oldham Coupling
21. Universal Coupling

XIV. SHAFTS :
1. Introduction
2. Material Used for Shafts
3. Manufacturing of Shafts
4. Types of Shafts
5. Standard Sizes of Transmission Shafts
6. Stresses in Shafts
7. Maximum Permissible Working Stresses for Transmission Shafts
8. Design of Shafts
9. Shafts Subjected to Twisting Moment Only
10. Shafts Subjected to Bending Moment Only
11. Shafts Subjected to Combined Twisting Moment and Bending Moment
12. Shafts Subjected to Fluctuating Loads
13. Shafts Subjected to Axial Load in Addition to Combined Torsion and Bending Loads
14. Design of Shafts on the Basis of Rigidity

XV. LEVERS :
1. Introduction
2. Application of Levers in Engineering Practice
3. Design of a Lever
4. Hand Levers
5. Foot Lever
6. Cranked Lever
7. Lever for a Lever Safety Valve
8. Bell Crank Lever
9. Rocker Arm for Exhaust Valve
10. Miscellaneous Levers

XVI. COLUMNS AND STRUTS :
1. Introduction
2. Failure of a Column or Strut
3. Types of End Conditions of Columns
4. Euler's Column Theory
5. Assumptions in Euler's Column Theory
6. Euler's Formula
7. Slenderness Ratio
8. Limitations of Euler's Formula
9. Equivalent Length of a Column
10. Rankine's Formula for Columns
11. Johnson's Formula for Columns
12. Long Columns Subjected to Eccentric Loading
13. Design of Piston Rod
14. Design of Push Rods
15. Design of Connecting Rod
16. Forces Acting on a Connecting Rod

XVII. POWER SCREWS :
1. Introduction
2. Types of Screw Threads Used for Power Screws
3. Multiple Threads
4. Torque Required to Raise Load by Square Threaded Screws
5. Torque Required to Lower Load by Square Threaded Screws
6. Efficiency of Square Threaded Screws
7. Maximum Efficiency of Square Threaded Screws
8. Efficiency Vs. Helix Angle
9. Overhauling and Self-locking Screws
10. Efficiency of Self Locking Screws
11. Coefficient of Friction
12. Acme or Trapezoidal Threads
13. Stresses in Power Screws
14. Design of Screw Jack
15. Differential and Compound Screws

XVIII. FLAT BELT DRIVES :
1. Introduction
2. Selection of a Belt Drive
3. Types of Belt Drives
4. Types of Belts
5. Material Used for Belts
6. Working Stresses in Belts
7. Density of Belt Materials
8. Belt Speed
9. Coefficient of Friction between Belt and Pulley
10. Standard Belt Thicknesses and Widths
11. Belt Joints
12. Types of Flat Belt Drives
13. Velocity Ratio of a Belt Drive
14. Slip of the Belt
15. Creep of Belt
16. Length of an Open Belt Drive
17. Length of a Cross Belt Drive
18. Power Transmitted by a Belt
19. Ratio of Driving Tensions for Flat Belt Drive
20. Centrifugal Tension
21. Maximum Tension in the Belt
22. Condition for Transmission of Maximum Power
23. Initial Tension in the Belt

XIX. FLAT BELT PULLEYS :
1. Introduction
2. Types of Pulleys for Flat Belts
3. Cast Iron Pulleys
4. Steel Pulleys
5. Wooden Pulleys
6. Paper Pulleys
7. Fast and Loose Pulleys
8. Design of Cast Iron Pulleys

XX. V-BELT AND ROPE DRIVES :
1. Introduction
2. Types of V-belts and Pulleys
3. Standard Pitch Lengths of V-belts
4. Advantages and Disadvantages of V-belt Drive Over Flat Belt Drive
5. Ratio of Driving Tensions for V-belt
6. V-flat Drives
7. Rope Drives
8. Fibre Ropes
9. Advantages of Fibre Rope Drives
10. Sheave for Fibre Ropes
11. Ratio of Driving Tensions for Fibre Rope
12. Wire Ropes
13. Advantages of Wire Ropes
14. Construction of Wire Ropes
15. Classification of Wire Ropes
16. Designation of Wire Ropes
17. Properties of Wire Ropes
18. Diameter of Wire and Area of Wire Rope
19. Factor of Safety for Wire Ropes
20. Wire Rope Sheaves and Drums
21. Wire Rope Fasteners
22. Stresses in Wire Ropes
23. Procedure for Designing a Wire Rope

XXI. CHAIN DRIVES :
1. Introduction
2. Advantages and Disadvantages of Chain Drive Over Belt or Rope Drive
3. Terms Used in Chain Drive
4. Relation between Pitch and Pitch Circle Diameter
5. Velocity Ratio of Chain Drives
6. Length of Chain and Centre Distance
7. Classification of Chains
8. Hoisting and Hauling Chains
9. Conveyor Chains
10. Power Transmitting Chains
11. Characteristics of Roller Chains
12. Factor of Safety for Chain Drives
13. Permissible Speed of Smaller Sprocket
14. Power Transmitted by Chains
15. Number of Teeth on the Smaller or Driving Sprocket or Pinion
16. Maximum Speed for Chains
17. Principal Dimensions of Tooth Profile
18. Design Procedure for Chain Drive

XXII. FLYWHEEL :
1. Introduction
2. Coefficient of Fluctuation of Speed
3. Fluctuation of Energy
4. Maximum Fluctuation of Energy
5. Coefficient of Fluctuation of Energy
6. Energy Stored in a Flywheel
7. Stresses in a Flywheel Rim
8. Stresses in Flywheel Arms
9. Design of Flywheel Arms
10. Design of Shaft, Hub and Key
11. Construction of Flywheels

XXIII. SPRINGS :
1. Introduction
2. Types of Springs
3. Material for Helical Springs
4. Standard Size of Spring Wire
5. Terms Used in Compression Springs
6. End Connections for Compression Helical Springs
7. End Connections for Tension Helical Springs
8. Stresses in Helical Springs of Circular Wire
9. Deflection of Helical Springs of Circular Wire
10. Eccentric Loading of Springs
11. Buckling of Compression Springs
12. Surge in Springs
13. Energy Stored in Helical Springs of Circular Wire
14. Stress and Deflection in Helical Springs of Non-circular Wire
15. Helical Springs Subjected to Fatigue Loading
16. Springs in Series
17. Springs in Parallel
18. Concentric or Composite Springs
19. Helical Torsion Springs
20. Flat Spiral Springs
21. Leaf Springs
22. Construction of Leaf Springs
23. Equalised Stresses in Spring Leaves (Nipping)
24. Length of Leaf Spring Leaves
25. Standard Sizes of Automobile Suspension Springs
26. Material for Leaf Springs

XXIV. CLUTCHES :
1. Introduction
2. Types of Clutches
3. Positive Clutches
4. Friction Clutches
5. Material for Friction Surfaces
6. Considerations in Designing a Friction Clutch
7. Types of Friction Clutches
8. Single Disc or Plate Clutch
9. Design of a Disc or Plate Clutch
10. Multiple Disc Clutch
11. Cone Clutch
12. Design of a Cone Clutch
13. Centrifugal Clutch
14. Design of a Centrifugal Clutch

XXV. BRAKES :
1. Introduction
2. Energy Absorbed by a Brake
3. Heat to be Dissipated During Braking
4. Materials for Brake Lining
5. Types of Brakes
6. Single Block or Shoe Brake
7. Pivoted Block or Shoe Brake
8. Double Block or Shoe Brake
9. Simple Band Brake
10. Differential Band Brake
11. Band and Block Brake
12. Internal Expanding Brake

XXVI. SLIDING CONTACT BEARINGS :
1. Introduction
2. Classification of Bearings
3. Types of Sliding Contact Bearings
4. Hydrodynamic Lubricated Bearings
5. Assumptions in Hydrodynamic Lubricated Bearings
6. Important Factors for the Formation of Thick Oil Film in Hydrodynamic Lubricated Bearings
7. Wedge Film Journal Bearings
8. Squeeze Film Journal Bearings
9. Properties of Sliding Contact Bearing Materials
10. Materials Used for Sliding Contact Bearings
11. Lubricants
12. Properties of Lubricants
13. Terms Used in Hydrodynamic Journal Bearings
14. Bearing Characteristic Number and Bearing Modulus for journal Bearings
15. Coefficient of Friction for Journal Bearings
16. Critical Pressure of the Journal Bearing
17. Sommerfeld Number
18. Heat Generated in a Journal Bearing
19. Design Procedure for Journal Bearings
20. Solid Journal Bearing
21. Bushed Bearing
22. Split Bearing or Plummer Block
23. Design of Bearing Caps and Bolts
24. Oil Grooves
25. Thrust Bearings
26. Foot-step or Pivot Bearings
27. Collar Bearings

XXVII. ROLLING CONTACT BEARINGS :
1. Introduction
2. Advantages and Disadvantages of Rolling Contact Bearings Over Sliding Contact Bearings
3. Types of Rolling Contact Bearings
4. Types of Radial Ball Bearings
5. Standard Dimensions and Designation of Ball Bearings
6. Thrust Ball Bearings
7. Types of Roller Bearings
8. Basic Static Load Rating of Rolling Contact Bearings
9. Static Equivalent Load for Rolling Contact Bearings
10. Life of a Bearing
11. Basic Dynamic Load Rating of Rolling Contact Bearings
12. Dynamic Equivalent Load for Rolling Contact Bearings
13. Dynamic Load Rating for Rolling Contact Bearings Under Variable Loads
14. Reliability of a Bearing
15. Selection of Radial Ball Bearings
16. Materials and Manufacture of Ball and Roller Bearings
17. Lubrication of Ball and Roller Bearings

XXVIII. SPUR GEARS :
1. Introduction
2. Friction Wheels
3. Advantages and Disadvantages of Gear Drives
4. Classification of Gears
5. Terms Used in Gears
6. Condition for Constant Velocity Ratio of Gears-law of Gearing
7. Forms of Teeth
8. Cycloidal Teeth
9. Involute Teeth
10. Comparison between Involute and Cycloidal Gears
11. Systems of Gear Teeth
12. Standard Proportions of Gear Systems
13. Interference in Involute Gears
14. Minimum Number of Teeth on the Pinion in Order to Avoid Interference
15. Gear Materials
16. Design Considerations for a Gear Drive
17. Beam Strength of Gear Teeth-lewis Equation
18. Permissible Working Stress for Gear Teeth in Lewis Equation
19. Dynamic Tooth Load
20. Static Tooth Load
21. Wear Tooth Load
22. Causes of Gear Tooth Failure
23. Design Procedure for Spur Gears
24. Spur Gear Construction
25. Design of Shaft for Spur Gears
26. Design of Arms for Spur Gears

XXIX. HELICAL GEARS :
1. Introduction
2. Terms Used in Helical Gears
3. Face Width of Helical Gears
4. Formative or Equivalent Number of Teeth for Helical Gears
5. Proportions for Helical Gears
6. Strength of Helical Gears

XXX. BEVEL GEARS :
1. Introduction
2. Classification of Bevel Gears
3. Terms Used in Bevel Gears
4. Determination of Pitch Angle for Bevel Gears
5. Proportions for Bevel Gears
6. Formative or Equivalent Number of Teeth for Bevel Gears-Tredgold's Approximation
7. Strength of Bevel Gears
8. Forces Acting on a Bevel Gear
9. Design of a Shaft for Bevel Gears

XXXI. WORM GEARS :
1. Introduction
2. Types of Worms
3. Types of Worm Gears
4. Terms Used in Worm Gearing
5. Proportions for Worms
6. Proportions for Worm Gears
7. Efficiency of Worm Gearing
8. Strength of Worm Gear Teeth
9. Wear Tooth Load for Worm Gear
10. Thermal Rating of Worm Gearing
11. Forces Acting on Worm Gears
12. Design of Worm Gearing

XXXII. INTERNAL COMBUSTION ENGINE PARTS :
1. Introduction
2. Principal Parts of an I.C. Engine
3. Cylinder and Cylinder Liner
4. Design of a Cylinder
5. Piston
6. Design Considerations for a Piston
7. Material for Pistons
8. Pistion Head or Crown
9. Piston Rings
10. Piston Skirt
12. Piston Pin
13. Connecting Rod
14. Forces Acting on the Connecting Rod
15. Design of Connecting Rod
16. Crankshaft
17. Material and Manufacture of Crankshafts
18. Bearing Pressure and Stresses in Crankshafts
19. Design Procedure for Crankshaft
20. Design for Centre Crankshaft
21. Side or Overhung Chankshaft
22. Valve Gear Mechanism
23. Valves
24. Rocker Arm