DEPARTMENT OF MECHANICAL ENGINEERING. 4 th Semester:

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1 jk"vªh; izks ksfxdh lalfkku] fetksje NATIONAL INSTITUTE OF TECHNOLOGY, MIZORAM (An Institute of National Importance under Ministry of HRD, Govt. of India) CHALTLANG, AIZAWL, MIZORAM Phone/Fax: / / nit_mizoram@nitmz.ac.in DEPARTMENT OF MECHANICAL ENGINEERING 4 th Semester: SL. No Course code Course Title L-T-P Credits 1. MAL14XX Numerical Method MEL1412 Solid Mechanics- II EEL1405 Industrial Instrumentation & Control MEL1413 Dynamics of Machinery- I MEL1414 Applied Thermodynamics MEL1415 Fluid Mechanics II MEP1416 Dynamics of Machinery Laboratory - I MEP1417 Fluid Mechanics Laboratory- II Total 44

2 MEL1412 Solid Mechanics-II 4 th Analysis of stresses: 3D state of stress at a point; Principal stresses; Invariants; 3D Mohr s circle; octahedral stresses; Hydrostatic and pure shear stresses. Differential equations of equilibrium in rectangular and polar coordinates. Boundary conditions. Saint-Venant s principle, Principle of superposition. Analysis of strains: 3D strain components in rectangular and polar coordinates; state of strain at a point; principal strains; strain deviators and invariants. Compatibility conditions in rectangular and polar coordinates. Constitutive relations. Boundary value problems: Stress formulation and displacement formulation; Beltrami-Michell equations and Navier s equations. Methods of solution and uniqueness of solution. Plane problems: Plane stress and plane strain problems. Airy stress function. 2D problems in rectangular and polar coordinates and axis symmetric problems: Cantilever beam with end load; uniformly loaded beam; thick and thin walled cylinders; rotating discs and cylinders; plate with a circular hole. Curved beams. Torsion of non-circular bars: Saint-Venant s semi-inverse method; Prandtl s stress function method. Unsymmetrical bending, shear center and shear flow. Energy methods: Principle of virtual work; Minimum potential energy; Statically indeterminate systems. Elastic stability: Analysis of beam columns. Yield and Fracture criteria: Different failure theories; stress space and strain space; Yield surfaces. Introduction to plasticity. 1 Advance Mechanics of solids Boreri et.al. Wiley India Pvt. Ltd. 2 Advance Mechanics of solids L. Srinath Tata McGraw Hill. 3 Advance Mechanics of solids Kumar & Ghai Khanna Publishers.

3 MEL1413 Dynamics of Machinery-I 4 th Basic of Dynamics of Machinery: Elements of kinematic chain, mechanisms & their inversions, mobility (Kutzhbag s criteria) and range of movements (Grashof's law). Miscellaneous mechanisms: Straight line generating mechanism, intermittent motion mechanism, Displacement, velocity and acceleration analysis of planar mechanisms by graphical, analytical and computer aided methods, Dimensional synthesis for motion, function and path generation. Cam: Cam profile synthesis and determination of equivalent mechanisms. Gears: Basic of Spur, helical, bevel and worm gear. Gear trains: Simple, compound and epicyclic gearing. Belt Drives: Velocity Ratio, Power Transmission, centrifugal effect of belt, Creep, Slip, Chain & Rope Drives 1 Theory of Machines Thomas Beven Pearson Publication. 2 Theory of Machines & Mechanism R.L. Norton McGraw hill international. 3 Theory of Machines S.S. Ratan Tata McGraw Hill.

4 MEL1414 Applied Thermodynamics 4 th Thermodynamic property relations: Maxwell relation, specific heat relations, relations for changes in internal energy, enthalpy and entropy, Clapeyron equation, Joule-Thomson coefficient, generalized relations and charts for residual enthalpy and entropy Gas Power Cycle: An overview of reciprocating IC engines & its classification, engine components, working principle of 2-stroke and 4-stroke engines, valve timing diagrams, engine performance parameters. An overview of gas turbine & its classification, air-standard cycle for gas turbine. Stirling and Ericsson cycles. Vapour power cycle: Carnot cycle, Rankine cycle, actual vapour power cycle processes, reheat cycle, regenerative cycle, feed water heaters (open and closed), characteristics of an ideal working fluid in vapour power cycle, binary vapour cycles, thermodynamics of combined cycles. Reciprocating air compressor: Single stage and multistage air compressors, work done per cycle, compressor capacity and power calculation, volumetric efficiency and isothermal efficiency, effect of clearance ratio on volumetric efficiency, intercooler and after cooler. Combustion processes: Fuels and combustion, theoretical and actual combustion processes, enthalpy of formation and enthalpy of combustion, first law analysis of reacting systems, adiabatic flame temperature, entropy change of reacting systems, second law analysis of reacting systems. Refrigeration and Psychrometry: Gas cycle refrigeration, vapour compression refrigeration, vapour absorption refrigeration, types of refrigerants and properties of ideal refrigerants, psychrometric properties and processes, psychrometric chart. 1 Fundamentals of Engineering M.J. Moran et.al. Wiley India Pvt. Ltd. Thermodynamics 2 Thermodynamics: An Engineering Yunus. A. cengel et.al. Tata McGraw-Hill. Approach 3 Engineering Thermodynamics P.K. Nag Tata McGraw-Hill.

5 MEL1415 Fluid mechanics-ii 4 th Viscous Flow and Boundary Layer Theory: Introduction to Navier-Stokes Equations; Boundary-layer equations; Momentum integral estimates; Laminar flat plate boundary layer Blasius equation; Displacement and momentum thickness; Boundary layers with pressure gradient; Flow separation; Turbulent flat plate boundary layers. Compressible Flow: The speed of sound; Adiabatic and isentropic steady flow - Mach-number relations, Isentropic flow with area changes; Normal-shock wave - Rankine-Hugoniot relations; Mach waves, oblique shock wave, Prandtl s Meyer expansion waves; Performance of nozzles; Fanno and Rayleigh flow. Turbo machines: Euler-equation for turbo-machines; Impulse turbine- Pelton wheel; Reaction turbine- Francis turbine, propeller turbine; Centrifugal pump; Performance parameters and characteristics of pumps and turbines; Cavitation; Net positive suction head (NPSH); Role of dimensional analysis and similitude; Positive displacement pumps. 1 Fluid Mechanics F W White Tata McGraw Hill. 2 Introduction To Fluid Mechanics R.W. Fox et.al. Wiley India Pvt. Ltd. 3 Fluid Mechanics A. K. Mohanty Prentice Hall Publishers.