It explains the general theory of mechanical engineering design and sets out problems for the students aimed at equipping them for design of machine parts with intelligence and understanding.
Throughout this book the chief aim has been to illustrate the subject matter fully with suitable diagrams and by direct treatment of the subject matter.
The book contains numerous examples carefully chosen from past examination papers of various Indian Universities.
The book is intended for students preparing for degree examinations in engineering of almost all the Indian Universities, diploma examinations of various technical boards, certificate courses, examinations of Union Public Service Commission and also Associate Membership examinations of professional bodies. It will also prove of interest and of practical value to practising engineers.| Price | : | Rs. 225-00 | $ 25-00 | £ 15-00 |
| Edition | : | Sixteenth Edition : 2004 | ||
| ISBN | : | 81-85594-65-1 | ||
| Book Size | : | 135 mm × 210 mm | ||
| Binding | : | Paperback with Single Colour Jacket Cover | ||
| Pages | : | 1064 + 16 | ||
Chapter 1 : MATERIALS OF CONSTRUCTION AND THEIR PROPERTIES
Chapter 2 : DESIGN CONSIDERATlONS IN MACHINE PARTS
Chapter 3 : CYLINDERS, TANKS AND PIPES
Chapter 5 : BOLTS, NUTS AND SCREWS
Chapter 6 : COTTER AND KNUCKLE JOINTS
Chapter 7 : SHAFTS, KEYS AND COUPLINGS
Chapter 10 : STRUTS AND COLUMNS
Chapter 14 : BELTS, PULLEYS AND CHAIN DRIVES
Chapter 17 : WELDED CONNECTIONS
Chapter 18 : DESIGN OF MISCELLANEOUS MACHINE PARTS – I : ENGINES AND BOILERS
Chapter 19 : DESIGN OF MISCELLANEOUS MACHINE PARTS – II : BRAKES AND CLUTCHES
APPENDICESChapter 1 : MATERIALS OF CONSTRUCTION AND THEIR PROPERTIES
Introduction
Choice of material
Materials of construction
Structure of materials
Mechanical properties of materials of construction
Determination of mechanical properties
Fabrication characteristics and processes of fabrication
Ferrous metals : Cast iron, wrought iron and steel
Non-ferrous metals and alloys
Available sizes
Accuracy
Finishing processes
Non-metallic materials
Plastics
Improvements in properties of materials
Composite materials
Examples
Chapter 2 : DESIGN CONSIDERATlONS IN MACHINE PARTS
Loads
Stress
Strain
Stress-Strain diagram : Modulus of elasticity
Poisson's ratio
Modulus of rigidity
Bulk modulus
Basic requirements of machine elements
Factor of safety : Selection of allowable stresses
Procedure for designing a machine element
Tensile stress
Compressive stress
Shearing stress
Bearing pressure intensity
Bending (Flexure)
Shear stresses in a beam
Torsion
Eccentric loading
Combined stresses : Bending combined with direct load
Offset connecting links and C shaped frames
Shear stresses combined with tensile and compressive stresses
Theories of elastic failure
Designing for impact loads
Design of members subjected to impact torsion
Stress concentration
Notch sensitivity
Effect of repeated application of a load
Fluctuating stress for ductile materials
Cummulative damage in fatigue : (Miner's equation)
Fatigue life determined by short-term testing
Light weight and minimum dimensions
Elastic matching
Temperature stresses
Examples
Chapter 3 : CYLINDERS, TANKS AND PIPES
Introduction
Types of vessels
Design of thin cylinders
Design of a thin spherical shell
Cylindrical shell with hemi-spherical ends
General theory of membrane stresses in vessels under internal pressure
Design of pipes
Design of thick cylinders
Design equation for thick cylinders
Examples
Introduction
Rivets
Rivet heads
Types of riveted joints
Caulking and fullering
Design of a riveted joint for boiler construction
Efficiency of a riveted joint
Joints for storage tanks
Lozenge joint
Eccentric loads on riveted connections
Rules in designing riveted joints
Advantages of welding over riveting
Examples
Chapter 5 : BOLTS, NUTS AND SCREWS
Introduction
Definitions
Forms of screw threads
Advantages of square threads over V threads
Screw fastenings
Locking devices for nuts
Washers
Eye bolt
Efficiency of threads
Stresses in screw fastenings
Initial stresses
Stresses due to external forces
Stresses due to combined load
Bolts of uniform strength
Screwed boiler stays
Bolts subjected to shear
Bolts under eccentric loading
Design of a nut
Power transmitting capacity of set screws
Examples
Chapter 6 : COTTER AND KNUCKLE JOINTS
Introduction
Design of cottered joints
Gib and cotter
Connection of a piston rod to a crosshead
Cotter foundation bolts
Design of a knuckle joint : Introduction
Joint of suspension links
Design of a coupler or a turnbuckle
Examples
Chapter 7 : SHAFTS, KEYS AND COUPLINGS
Introduction
Materials and design stresses
Design of axles
Design of shafts on the basis of strength
Design of shafts on the basis of rigidity
Design of hollow and non-circular shafts
Form of keys
Keys
Design of sunk keys
Effect of keyways in sunk keys
Taper pins
Feather keys and splined shafts
Force and shrink fits (Driving fits on solid shafts)
Couplings : Introduction
Sleeve couplings or muff couplings
Clamp or compression couplings
Flange couplings
Marine type of flange couplings
Flexible couplings
Bushed pin type of flexible couplings
Bibby type of flexible coupling
Leather pad type flexible coupling
Oldham's coupling
Universal coupling
Safety couplings
Flexible shafts
Examples
Introduction
Close coiled helical springs subjected to axial loading : Circular wire
Optimum design of helical springs
Helical springs of non-circular wires
Concentric helical springs
General considerations in design of compression and extension springs
Torsion helical springs
Spiral springs (Power springs)
Leaf springs
Belleville springs
Energy-storage capacity
Examples
Introduction
Bearing area
Sliding bearings : Solid journal bearings
Divided journal bearing : Plummer block
Hydrodynamic theory of lubrication
Oil grooving
Heating of bearings
Design procedure for hydrodynamic journal bearings
Bearing materials
Design of bearing caps and bolts
Foot step or pivot bearings
Collar bearings
Anti-friction bearings
Radial ball bearings
Roller bearings
Selection of ball and roller bearings
Bearing load
Equivalent bearing load
Carrying capacity and life
Relationship between load and life
Requisite bearing life for different types of machines
Life of Timken bearings
Influence of high temperatures on load carrying capacity
Permissible misalignment
Friction in rolling bearings
Comparison of sleeve and rolling bearings
Examples
Chapter 10 : STRUTS AND COLUMNS
Introduction
Euler's formula
End fixity coefficients
Radius of gyration and plane of buckling
Rankine's formula
Tetmajer's formula
Johnson formula
Design of push rods
Eccentrically loaded columns
Examples
Introduction
Forms of threads
Force analysis
Design of a screw
Design of a nut
Practical design of simple lifting machines (screw jack)
Compound screw
Differential screw
Ball screws
Examples
Introduction
General procedure for design of levers
Hand lever
Foot lever
Cranked lever
Lever of a lever loaded safety valve
Rocker arm for Diesel engines (Straight arm)
Angular levers
Design of overhung cranks
Design of a crank pin (overhung crank)
Miscellaneous examples
Examples
Brackets
Hangers
Wall boxes
Design considerations
Examples
Chapter 14 : BELTS, PULLEYS AND CHAIN DRIVES
Introduction
Materials for belts
Design of belts
Design procedure for flat belts
V-belt drives
Design of V-flat drives
Pulleys : Materials and types
Cast iron pulleys
Design of cast iron pulleys
Steel pulleys
Wooden pulleys
Fast and loose pulleys
Speed cones
Short centre drive : Gravity idlers
Special tension adjusting belt drives
Chain drives : Introduction
Roller chains
Design of chain drives
Examples
Introduction
Determination of mass of a flywheel for a given coefficient of fluctuation of speed
Flywheel for punches and shears
Engine flywheels
Flywheel for electric generators
Stresses in rim of flywheels
Design of a hub
Arms of the flywheel
Examples
Introduction
Design of spur gears : General characteristics
Spur gear terminology
Gear tooth forms
Accuracy of gears
Materials
Allowable stresses
Design considerations
Strength of gear teeth : Lewis equation
Dynamic tooth load
Design for wear
Gear wheel proportions
Internal gears
Racks
Design of helical gears : Introduction
Proportions for helical gears
Design of helical gear teeth
Herringbone gears
Rating of machine cut spur and helical gears
Design of bevel gears : Introduction
Definitions
Strength of bevel gear teeth
Constructional details
Bearing loads
Design of worm gears : Introduction
Worm gear nomenclature
Strength of worm gear teeth
Bearing loads on the shafts
Examples
Chapter 17 : WELDED CONNECTIONS
Introduction
Welding processes
Types of welded joints
Working stresses in welds
Strength of welds
Special cases of fillet welds
Eccentric loads on welded connections
Design procedure recommended by American Welding Society
Fillet welds under varying loads
Examples
Chapter 18 : DESIGN OF MISCELLANEOUS MACHINE
PARTS – I : ENGINES AND BOILERS
Design of flat plates
Design of a piston for I.C. Engines
Design of crossheads
Design of connecting rods
Design of crankshafts
Design of a spring-loaded Hartnell governor
Design of an eccentric
Compensating ring for a manhole
Design of safety valves for boilers
Design of a screw down steam stop valve
Design of cams (I.C. Engines)
Design of a valve gear for I.C. Engines
Examples
Chapter 19 : DESIGN OF MISCELLANEOUS MACHINE
PARTS – II : BRAKES AND CLUTCHES
Hoisting equipments : Introduction
Design of hoisting chains and drums
Design of a hoisting rope
Design of wire ropes
Stresses in curved beams
Design of a crane hook
Brakes : Introduction
Types of brakes
Design procedure for block brakes
Band brakes : Introduction
Design procedure for band brakes
Clutches : Introduction
Design procedure for friction clutches
Examples
Introduction
Hand operated bench press
Reduction Gear
Project Exercises
APPENDIX I
APPENDIX II
APPENDIX III
APPENDIX IV
APPENDIX V
APPENDIX VI
APPENDIX VII
APPENDIX VIII
APPENDIX IX
APPENDIX X APPENDIX XI
APPENDIX XII
APPENDIX XIII
APPENDIX XIV
APPENDIX XV
APPENDIX XVI
APPENDIX XVII:
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:SI System
Properties of Ferrous Materials
Properties of Plastics
List of Indian Standards : "Testing of Materials"
Indian Standards referred in the text
Preferred Numbers (Rounded values)
Deflection formulas for machine parts
Metric threads
Common sizes of transmission shafts (Dimensions in mm)
Properties of geometrical sections
Imperial or Legal Standard Wire Gauge
Sizes of pulleys for flat and V-belts
Width of flat cast iron and mild steel pulleys
Service factors for belt drives
Load carrying capacity of V-belts
Worm data
Basic thicknesses of sheet and diameters of wire in millimetres