1601: DYNAMICS OF MACHINERY

Module 1

Force analysis of plane motion mechanism: Static force analysis, analysis of four bar chain, slider crank mechanism, static force analysis with friction. Dynamic force analysis: D'Alembert's principle, inertia forces,dynamic force analysis of four bar and slider crank mechanism, Shaking forces, gear force analysis of spur, helical and bevel gears, Dynamics of reciprocating engines, equivalent masses, inertia force in single engine, bearing loads in single cylinder engine.

Module 2

Flywheels: Inertia torque-turning moment diagrams for multi-cylinder engines, steam engines, coefficient of fluctuation of speed and energy, flywheel mass calculation.Gyroscopes: motion of a rigid body in 3 dimension, Gyrodynamics, gyroscope and gyroscopic couple, Gyroscopic effects on ships, aircrafts and automobiles.Brakes – Types of brakes, Block brake, Band brake, Band and Block brake, Internal expanding brake, Condition of self locking, Power transmitted and Heat generated.

Module 3

Balancing: Static and dynamic balancing, balancing of several masses in a plane, balancing of rotating masses in several planes, balancing of several masses in several planes. Condition of complete balancing of an engine,reciprocating and rotating parts, locomotive balancing, hammer blow, variation in tractive effort, swaying couple,Multi-cylinder inline engines, Radial and V-engines, Balancing machines and principles of working.

Module 4

Belt, Rope and Chain drives: Types of belt drives, Velocity ratio, Slip, Creep, Length of belt, Power transmitted,Ratio of tensions, Angle of contact, Centrifugal tension, Maximum tension, Initial tension, V belt drive, Ratio of Tensions in V belt and Rope drives, Kinematics of chain drive, Classifications of chains, Chain length.Governors – Watt governor, Porter governor, Proell governor, Hartnell governor, Sensitiveness, Hunting,Isochronism, Effort of governor, Controlling force.


1602: MACHINE DESIGN-I

Module 1

Introduction to design: Steps in design process, design factors, practical considerations in design, selection of materials, strength of mechanical elements, theories of failure, impact load, shock load, fatigue loading, effects of surface, size, temperature and stress concentration, consideration of creep and thermal stress in design.

Module 2

Detachable joints: design of screws, standards, thread stresses, preloading of bolts, fatigue and shock load,eccentric loading. Power screws, mechanism of power screws, thread stresses, efficiency of power screws, types of keys, stresses in keys, design of socket and spigot joint, Gib and cotter, knuckle joints, design of rigid couplings and flexible couplings.

Module 3

Riveted joint: Stresses in riveted joint, design of riveted joints with central and eccentric loads, boiler and tank joints, structural joints.Springs: stresses in helical springs, deflection of helical compression and tension springs, springs subjected to fatigue loading, concentric and helical torsion spring, critical frequency of springs, leaf springs, design of automotive leaf springs.

Module 4

Welded joints: types of welded joints, stresses, design of welded joints subjected to axial, torsional and bending loads, welds subjected to fluctuating loads.Power shafts: stresses in shafts, design of static loads, combined stresses, reversed bending and steady loads, design of shafts based on deflection and strength, critical speed of shafts.


1603 : OPERATIONS MANAGEMENT

Module 1

Network techniques: Basic concept of network constructing, information requirement, critical path, algorithm for critical path, various slacks, crashing, multi-time estimate, PERT Forecasting: methods of forecasting, time series, moving average method, exponential smoothening.

Module 2

Production planning and control: Scopes and objectives Functions of production planning and control, product consumption cycle, product life cycle, design function, product design, cost factors, simplification, standardization,specialisation, inter-changeability.Inventory control: Structure of inventory problems, relevant cost, EOQ models, infinite delivery rate without backordering, stores ledger, materials requisition sheet, materials return note, material transfer note, bin cards.

Module 3

Aggregate Planning methods: graphical and reaction rate methods.Scheduling: Gantt charts, indexing methods, Basic concepts of sequencing, one machine n jobs, 2 machine n jobs,m machine n jobs problems, critical ratio method of loading & scheduling

Module 4

Plant Location and Layout: Factors influencing location, need for layout, layout design process, determination of equipment and employee requirement, production rate determination, space determination, block plan,systematic layout planning.Material handling: The principles of materials handling, classification, selection factors.Maintenance & replacement: preventive and breakdown maintenance, economic aspects, replacement of equipment, depreciation.


1604 : HEAT AND MASS TRANSFER

Module 1

Introduction to heat transfer – basic modes of heat transfer – conduction heat transfer –Fourier law of heat conduction– temperature dependence of thermal conductivity- general heat conduction equation in cartesian,cylindrical and spherical coordinates – boundary conditions – one-dimensional steady state conduction- critical insulation thickness -one-dimensional steady state conduction with heat generation -extended surface – two dimensional steady state heat conduction – conduction shape factor – unsteady state heat conduction in one dimension – lumped heat capacity system – semi-infinite solids with sudden change in surface temperature –Introduction to numerical methods in conduction.

Module 2

Convective heat transfer – Newton’s law of cooling – Prandtl number – laminar forced convection heat transfer from flat plates – fully developed laminar flow in pipes – turbulent forced convection – Reynolds’ analogy – natural convection – natural convection heat transfer from vertical plates and horizontal tubes – condensation and boilin– film and drop wise condensation – film boiling and pool boiling – introduction to multiphase flow and heat transfer. Diffusion and convective mass transfer-Ficks law of diffusion.

Module 3

Radiative transfer – electromagnetic radiation spectrum – thermal radiation –radiation properties- black body,gray body – monochromatic and total emissive power – Planck’s law – Stefan-Boltzman law – Wien’s displacement law – Kirchhoffs identity – shape factor- reciprocity relation – heat exchange between non black bodies; surface and shape resistances- electrical network analogy- heat transfer between parallel surafces – radiation shields.

Module 4

Heat Exchangers: Type of heat exchangers- overall heat transfer coefficient -fouling factors -Logarithmic mean temperature difference (LMTD)- derivation of LMTD for parallel flow and counter flow heat exchangers-LMTD correction factor- effectiveness, NTU method of heat exchanger analysis- effectiveness derivation for parallel flow and counter flow heat exchangers. Design of parallel flow-counterflow-shell and tube multipass heat exchangerscondensers.


CAD/CAM

Module 1

Fundamentals of CAD: Role of computers in design, geometric modelling- wireframe and solid, modelling,engineering analysis-FEM, design review and evaluation, automated drafting, design data base, softwares used in CAD, data exchange between CAD and CAM. Fundamentals of CAM: Definition of automation, levels of automation, high volume discrete parts production, Detroit type of automation, transfer machines, analysis of automated flow lines, assembly machines, flow line balancing, line balancing.

Module 2

Computer Numerical Control: basic theory of numerical control, advantages of NC, open and closed loop system,information flow and control theory, classification of CNC machine tools, position control and continuous path control, principles of displacement measurement, digital linear and rotary displacement transducer, analog displacement measuring system. CNC part programming: Manual programming, work piece modelling and computer aided part programming, G and M function, canned cycles, CAPP languages, structure and use of major CAPP languages, programming in APT.

Module 3

Design features of CNC machines: Special design features to match machine tools to numerical control system CNC tooling: ATC, APC, features of CNC systems for lathes and machining centre. Testing of NC machine tools,static and dynamic errors.

Module 4

Basic concepts of Robotics: Introduction, basic structure of Robots, resolution, accuracy, and repeatability.Classification and structure of Robotic systems: PTP and CP systems, control loops of robotic systems, types of robots Drives and Control systems: hydraulic systems, DC servo motors, control approaches of Robots.Applications of Robots: handling, loading and unloading, welding, spray painting, assembly, machining.Programming: manual teaching, lead – through teaching, programming languages. Sensors and Intelligent Robots:introduction to Robotic sensors, vision systems, range detectors, force and torque sensors. Advanced concepts in automation: direct numerical control, CAE, CIM, FMS, computer integrated manufacturing – basic concepts of AI and expert systems for manufacturing automation


1606 E1 : HYDRAULIC AND PNEUMATIC DRIVES

Module 1

Introduction to oil hydraulics and pneumatics, their advantages and limitations, ISO symbols and standards in Oil Hydraulics and pneumatics, Recent developments, applications, Basic types and constructions of Hydraulic pumps and motors, Ideal pump and motor analysis, Practical pump and motor analysis, Performance curves and parameters.

Module 2

Hydraulic Actuators, Hydraulic control elements – direction, pressure and flow control valves. Valve configurations,General valve analysis, valve lap, flow forces and lateral forces on spool valves, Series and parallel pressure compensation flow control valves, Flapper valve Analysis and Design, Analysis of valve controlled and pump controlled motor, Electro-hydraulic servo valves-specifications, selection and use of servo valves.

Module 3

Electro hydraulic servomechanisms – Electro hydraulic position control servos and velocity control servos,Nonlinearities in control systems (backlash, hysteresis, dead band and friction nonlinearities). Basic configurationsof hydraulic power supplies – Bypass Regulated and Stroke Regulated Hydraulic Power Supplies, Heat generationand dissipation in hydraulic systems: Design and analysis of typical hydraulic circuits, Use of Displacement – Time and Travels-Step diagrams: Synchronization circuits and accumulator sizing. Meter - in, Meter - out and Bleed-off circuits: Fail Safe and Counter balancing circuits.

Module 4

Components of pneumatic systems: Direction, flow and pressure control valves in pneumatic systems,Development of single and multiple actuator circuits, Valves for logic functions: Time delay valve, Exhaust and supply air throttling, Examples of typical circuits using Displacement – Time and Travel-Step diagrams, Willdependent control, Travel-dependent control and Time dependent control, combined control, Program Control,Electro-pneumatic control and air hydraulic control, Applications in Assembly, Feeding, Metalworking, materials handling and plastics working.


1606 E2: ADVANCED MECHANICS OF SOLIDS

Module 1

2D problems in Cartesian co-ordinates:stress & strain at a point, components of stress & strain , Hooks law plane stress & plane strain, measurement of surface strains, construction of Mohr circle for stress & strain , strain rosettes, differential equations of equilibrium , boundary conditions, compatibility equations, stress function. Solution by polynomials, St.Venant’s principle,bending of a cantilever loaded at the end.

Module 2

2D problems in polar co-ordinates General equations in polar co-ordinates. Stress distribution symmetrical about an axis pure bending of curved bars.Strain components in polar coordinates, displacement for symmetrical stress distribution, rotating disks, thick cylinders, pure bending of curved bars.

Module 3

Analysis of stress & strain in 3D Principal stresses, stress ellipsoid, stress invariants, maximum shearing stress, homogenous deformation. Strain at a point, rotation, differential equations of equilibrium, compatibility. Equations of equilibrium in terms of displacements Stretching of a prismatic bar by its own weight Energy methods: principle of virtual work, reciprocal theorems, strain energy methods, Castigliano’s theorems.

Module 4

Unsymmetric bending, shear flow, shear centre.Torsion of noncircular straight bars, elliptic cross sections. Membrane analogy. Torsion of thin tubes, open and closed sections.


1606 E3 : ENERGY CONSERVATION & ENVIRONMENT PROTECTION

Module 1

Overview of World Energy Scenario. Fossil Fuel Reserves - Estimates, Country Energy Balance Construction -Examples Trends in energy use patterns, Energy Economics - Simple Payback Period, IRR, NPV, Life Cycle Costing.

Module 2

Importance of energy management. Energy auditing: methodology, analysis of past trends plant data), Steam Systems: Boiler -efficiency testing, excess air control, Steam distribution & use - steam traps , condensate recovery , flash steam utilisation. Thermal Insulation. Energy conservation in Pumps, Fans (flow control),Compressed Air Systems, Refrigeration & air conditioning systems. Waste heat recovery.

Module 3

Cogeneration - concept, options (steam/gas turbines/diesel engine based), selection criteria. Heat exchanger networking- concept of pinch, target setting, composite curves. Renewable energy sources- overview of solar,wind, tidal, geothermal , nuclear energy sources.

Module 4

Environmental Impacts of energy use - Air Pollution - SOx, NOx, CO, particulates Solid and Water Pollution,Formation of pollutants, sources of emissions. Exhaust emission test, procedures, standards and legislation;environmental audits; Emission factors and Global Warming, CO2 Emissions, Impacts. Water pollution


1606 E4 :ADVANCED ENGINEERING MATERIALS

Module 1

Introduction - classification and characteristics of polymer matrix and metal matrix composites - mechanical behaviour of UD composites - longitudinal strength and stiffness - transverse strength and stiffness - failure modes- short fibre composites

Module 2

Manufacturing and testing methods - production of various fibres - matrix materials and surface treatments -fabrication of composites - fabrication of thermosetting resin matrix composites - fabrication of thermoplasticresin matrix composites/short fibre composites - fabrication of metal matrix composites - fabrication of ceramic matrix composites - carbon-carbon composites - machining aspects of composites - experimental characterisation of composites - uniaxial tension - compression and shear tests - determination of interlaminar and fracture toughness - damage identification through non-destructive evaluation techniques - ultrasonic, acoustic emission and X-radiography

Module 3

Analysis of orthotropic lamina - Hooke’s law for orthotropic materials - stress-strain relations and engineering constants - specially orthotropic lamina - relation between engineering constants and elements of stiffness and compliance matrices - restrictions on elastic constants - stress-strain relationships for generally orthotropic lamina- transformation of engineering constants - strengths of orthotropic lamina - typical design application examples

Module 4

Analysis of laminated composites - strain and stress variation in a laminate - synthesis of stiffness matrix construction and properties of special laminates - symmetric laminates - unidirectional, cross-ply and angle-ply laminates - quasi-isotropic laminates - determination of laminae stresses and strains - laminate analysis through computers - typical design application examples