Tuesday, 17 January 2012

syllabus for 3rd year mechanical engineering(uptu/gbtu)


                                               UNIT I
Spur Gears
Tooth forms, System of gear teeth, contact ratio, Standard proportions of gear systems,
Interference in involute gears, Backlash, Selection of gear materials, Gear
manufacturing methods, Design considerations, Beam strength of gear tooth, Dynamic
tooth load, Wear strength of gear tooth, Failure of gear tooth, Design of spur gears,
AGMA and Indian standards.

Helical Gears

Terminology, Proportions for helical gears, Beam strength and wear strength of helical
gears, herringbone gears, crossed helical gears, Design of helical gears. 3
Worm Gears
Types of worms, Terminology, Gear tooth proportions, Efficiency of worm gears, Heat
dissipation in worm gearing, Strength and wear tooth load for worm gears, Design of
worm gearing


Sliding Contact Bearing
Types, Selection of bearing, Plain journal bearing, Hydrodynamic lubrication, Properties
and materials, Lubricants and lubrication, Hydrodynamic journal bearing, Heat
generation, Design of journal bearing, Thrust bearing-pivot and collar bearing,
Hydrodynamic thrust bearing, Rolling Contact Bearing
Advantages and disadvantages, Types of ball bearing, Thrust ball bearing, Types of
roller bearing, Selection of radial ball bearing, Bearing life, Selection of roller bearings,
Dynamic equivalent load for roller contact bearing under constant and variable loading,
Reliability of Bearing, Selection of rolling contact bearing, Lubrication of ball and roller
bearing, Mounting of bearing


Selection of type of IC engine, General design considerations, Design of Cylinder and
cylinder head; Design of piston, piston ring and gudgeon pin; Design of connecting rod;
Design of centre crankshaft Note: There will be three big questions from each unit. Units I & II each consists of
40 marks whereas Unit III consists of 20 marks. Design data book is allowed in the
Books and References:
1. Mechanical Engineering Design – Joseph E. Shigely, McGraw Hill Publications
2. Design of Machine Memebers-Alex Valance and VI Doughtie, McGraw Hill Co.
3. Machine design-M.F. Spott, Prentice Hall India
4. Machine Design-Maleev and Hartman, CBS
5. Machine design -Black & Adams, Mc Graw Hill
6. Machine Design-Sharma and Agrawal, S.K. Katara & Sons
7. Design of Machine Elements-V.B. Bhandari, Tata McGraw Hill Co.

Static & Dynamic Force Analysis
Static equilibrium of two/three force members, Static equilibrium of member with two
forces and torque, Static force analysis of linkages, D’Alembert’s principle, Equivalent
offset inertia force, Dynamic force analysis of four link mechanism and slider crank
mechanism, Engine force analysis-Piston and crank effort 5
Turning Moment & Flywheel
Turning moment on crankshaft, Turning moment diagrams-single cylinder double acting
steam engine, four stroke IC engine and multi-cylinder steam engine, Fluctuation of
energy, Flywheel

Balancing of Machines
Static and dynamic balancing, Balancing of several masses in the same plane and
different planes, Balancing of reciprocating masses, Balancing of primary force in
reciprocating engine, Partial balancing of two cylinder locomotives, Variation of tractive
force, swaying couple, hammer blow
Terminology, Centrifugal governors-Watt governor, Dead weight governors-Porter &
Proell governor, Spring controlled governor-Hartnell governor, Sensitivity, Stability,
Hunting, Isochronism, Effort and Power of governor, Controlling force diagrams for
Porter governor and Spring controlled governors

Gyroscopic Motion
Principles, Gyroscopic torque, Effect of gyroscopic couple on the stability of aero planes
& automobiles Mechanical Vibrations
Types of vibrations, Degrees of freedom, Single degree free & damped vibrations,
Forced vibration of single degree system under harmonic excitation, Critical speeds of
shaft Books and References:
1. Theory of Machines - Thomas Bevan
2. Theory of Machines and Mechanisms- Shigley
3. Theory of Machines and Mechanisms-Ghosh & Mallik
4. Theory of Machines and Mechanisms- Rao & Dukkipati
5. Theory of Machines - S.S. Rattan
6. Theory of Machines – R.K. Bansal
7. Mechanics of Machines – V. Ramamurti
8. Theory of Machines – Khurmi & Gupta
9. Theory of Machines – P.L. Ballaney
10. Theory of Machines – V. P. Singh


Introduction to refrigeration system, Methods of refrigeration, Carnot refrigeration
cycle, Unit of refrigeration, Refrigeration effect & C.O.P.
Air Refrigeration cycle:
Open and closed air refrigeration cycles, Reversed Carnot cycle, Bell Coleman
or Reversed Joule air refrigeration cycle, Aircraft refrigeration system, Classification of
aircraft refrigeration system. Boot strap refrigeration, Regenerative, Reduced ambient,
Dry air rated temperature (DART).
Vapour Compression System:
Single stage system, Analysis of vapour compression cycle, Use of T-S and P-H
charts, Effect of change in suction and discharge pressures on C.O.P, Effect of sub
cooling of condensate & superheating of refrigerant vapour on C.O.P of the cycle,
Actual vapour compression refrigeration cycle, Multistage vapour compression system
requirement, Removal of flash gas, Intercooling, Different configuration of multistage
system, Cascade system.
Vapour Absorption system;
Working Principal of vapour absorption refrigeration system, Comparison
between absorption & compression systems, Elementary idea of refrigerant absorbent
mixtures, Temperature – concentration diagram & Enthalpy – concentration diagram ,
Adiabatic mixing of two streams, Ammonia – Water vapour absorption system, Lithium-
Bromide water vapour absorption system, Comparison. 5
Classification of refrigerants, Nomenclature, Desirable properties of refrigerants,
Common refrigerants, Secondary refrigerants and CFC free refrigerants. 3
Air Conditioning:
Introduction to air conditioning, Psychometric properties and their definitions,
Psychometric chart, Different Psychometric processes, Thermal analysis of human body,
Effective temperature and comfort chart, Cooling and heating load calculations,
Selection of inside & outside design conditions, Heat transfer through walls & roofs,
Infiltration & ventilation, Internal heat gain, Sensible heat factor ( SHF ), By pass factor,
Grand Sensible heat factor ( GSHF), Apparatus dew point (ADP). 8
Refrigeration Equipment & Application:
Elementary knowledge of refrigeration & air conditioning equipments e.g
compressors, condensers, evaporators & expansion devices, Air washers, Cooling,
towers & humidifying efficiency, Food preservation, Cold storage, Refrigerates Freezers,
Ice plant, Water coolers, Elementary knowledge of transmission and distribution of air
through ducts and fans, Basic difference between comfort and industrial air conditioning. 7
1. Refrigeration and Air conditioning, by Manohar Prasad, New Age International (P) Ltd.Pub.
2. Refrigeration and Air conditioning by C.P Arora.
3. Refrigeration and Air conditioning by Arora & Domkundwar.
4. Refrigeration and Air conditioning by stoecker & Jones.
5. Refrigeration and Air conditioning by Roy J. Dossat.
6. Refrigeration and Air conditioning by P.L. Baloney.
7. Thermal Environment Engg. by Kuhen, Ramsey & Thelked.

Classification of Fluid Machines & Devices, Application of momentum and momentum
equation to flow through hydraulic machinery, Euler’s fundamental equation. 4
Impact of jet:
Introduction to hydrodynamic thrust of jet on a fixed and moving surface (flat & curve),
Effect of inclination of jet with the surface.
Hydraulic Turbines:
Classification of turbines, Impulse turbines, Constructional details, Velocity triangles,
Power and efficiency calculations, Governing of Pelton wheel. 4
Reaction Turbines:
Francis and Kaplan turbines, Constructional details, Velocity triangles, Power and
efficiency calculations, Degree of reaction, Draft tube, Cavitation in turbines, Principles
of similarity, Unit and specific speed, Performance characteristics, Selection of water
turbines. 8
Centrifugal Pumps:
Classifications of centrifugal pumps, Vector diagram, Work done by impellor, Efficiencies
of centrifugal pumps, Specific speed, Model testing, Cavitation & separation and their
control, Performance characteristics. 7
Positive Displacement Pumps:
Reciprocating pump theory, Slip and coefficient of discharges, Indicator diagram, Effect
and acceleration, Work saved by fitting air vessels, Comparison of centrifugal and
reciprocating pumps, Positive rotary pumps, Gear and Vane pumps, Performance
characteristics. 6
Other Machines:
Hydraulic accumulator, Special duty pumps, Intensifier, Hydraulic press, Lift and cranes,
Theory of hydraulic coupling and torque converters, Performance characteristics. 5
Water Lifting Devices :
Hydraulic ram, Jet pumps, Air lift pumps.
Hydraulic Machines by Jagdish Lal, Metropolitan book co. pvt ltd.
Hydraulic Machines: Theory & Design, V.P.Vasandhani, Khanna Pub.
Applied Hydraulics by Addison
Hydraulic Machines by R K Rajput, S.Chand & co Ltd.
Hydraulic Machines by D S Kumar
0 1 2
Minimum 8 experiments from following
1. Impact of Jet experiment.
2. Turbine experiment on Pelton wheel.
3. Turbine experiment on Francis turbine.
4. Turbine experiment on Kaplan turbine.
5. Experiment on Reciprocating pump.
6. Experiment on centrifugal pump.
7. Experiment on Hydraulic Jack/Press
8. Experiment on Hydraulic Brake
9. Experiment on Hydraulic Ram
10. Study through detailed visit of any water pumping station/plant
11. Any other suitable experiment/test rig such as comparison & performance of
different types of pumps and turbines.
12. Experiment on Compressor
13. Experiment for measurement of drag and lift on aerofoil in wind tunnel

A. Computer and Language : students are required to learn the basics of computer
language such as C and C++ so that they should be able to write the computer
programme (3practical turns)
B. Writing Computer programme for conventional design: Students are required to
write computer program and validate it for the design of machine components done
in theory subject (5practical turns)
C. Mini Project: Each student will be given a real life problem for the complete design
of a subsystem/system using either manual calculation with the help of design
handbook or through computer programme, if needed. This will be done as home
assignment to be submitted at the end of the semester.
Note: Eight experiments out of the following are to be conducted
1. Study of simple linkage models/mechanisms
2. Study of inversions of four bar linkage
3. Study of inversions of single/double slider crank mechanisms
4. Experiment on Gears tooth profile, interference etc.
5. Experiment on Gear trains
6. Experiment on longitudinal vibration
7. Experiment on transverse vibration
8. Experiments on dead weight type governor
9. Experiment on spring controlled governor
10. Experiment on critical speed of shaft
11. Experiment on gyroscope
12. Experiment on static/dynamic balancing
13. Experiment on Brake
14. Experiment on clutch

Introduction : Importance and application of welding, classification of welding process.
Selection of welding process. 2
Brief review of conventional welding process : Gas welding, Arc welding, MIG, TIG
welding. Resistance welding. Electroslag welding, Friction welding etc. Welding of
MS.CI, Al, Stainless steel & Maurer/Schaefflar Diagram. Soldering & Brazing. 5
Advanced welding Techniques- Principle and working and application of advanced
welding techniques such as Plasma Arc welding, Laser beam welding, Electron beam
welding, Ultrasonic welding etc. 7
Advanced welding Techniques (continued) : Principle and working and application of
advanced welding techniques such as explosive welding/ cladding, Underwater welding,
Spray-welding / Metallising, Hard facing.
Weld Design : Welding machines/equipments and its characteristics and arc-stability,
Weld defects and distortion and its remedies, Inspection/testing of welds, Weld Design,
Welding of pipe-lines and pressure vessels. Life predication. Thermal and Metallurgical consideration.: Thermal considerations for welding,
temperature distribution, Analytical/Empirical analysis/formulae, heating & cooling
curves. Metallurgical consideration of weld, HAZ and Parent metal, micro & macro
structure. Solidification of weld and properties.

EHU-601 : Industrial Management

 Introduction : Concept, Development, application and scope of Industrial Management.
 Productivity : Definition, measurement, productivity index, types of production system,
Industrial Ownership.
 Management Function : Principles of Management- Management Tools – time and
motion study, work simplification- process charts and  flow diagrams, Production
Planning, Specification of Production requirements.
 Inventory control : Inventory, cost, Deterministic models, Introduction to supply chain
 Quality control : Meaning, process control, SQC control charts, single, double and
sequential sampling, Introduction to TQM.
 Environmental Issues : Environmental Pollution – various management techniques to
control Environmental pollution – Various control acts for Air, Water, Solid waste and
Noise pollution.
Reference Books
1. Khanna O.P.  : Industrial Engineering
2. T.R. Banga : Industrial Engineering and Management
3. Sharma B.R. : Environmental and Pollution Awareness.


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