DRDO syllabus for Mechanical Branch

DRDO-SET SYLLABUS

Mechanical Engineering – ME

Engineering Mechanics:

Free body diagrams and equilibrium; trusses and frames; virtual work;

kinematics and dynamics of particles and of rigid bodies in plane motion,

including impulse and momentum (linear and angular) and energy

formulations; impact.

Strength of Materials: Stress and strain, stress-strain relationship and

elastic constants, Mohr’s circle for plane stress and plane strain, thin

cylinders; shear force and bending moment diagrams; bending and shear

stresses; deflection of beams; torsion of circular shafts; Euler’s theory of

columns; strain energy methods; thermal stresses.

Theory of Machines: Displacement, velocity and acceleration analysis of

plane mechanisms; dynamic analysis of slider-crank mechanism; gear

trains; flywheels.

Vibrations: Free and forced vibration of single degree of freedom systems;

effect of damping; vibration isolation; resonance, critical speeds of shafts.

Design: Design for static and dynamic loading; failure theories; fatigue

strength and the S-N diagram;principles of the design of machine elements

such as bolted, riveted and welded joints, shafts, spur gears, rolling

and sliding contact bearings, brakes and clutches.

Fluid Mechanics: Fluid properties; fluid statics, manometry, buoyancy;

control-volume analysis of mass,momentum and energy; fluid acceleration;

differential equations of continuity and momentum; Bernoulli’s

equation; viscous flow of incompressible fluids; boundary layer; elementary

turbulent flow; flow through pipes,head losses in pipes, bends etc.

Heat-Transfer: Modes of heat transfer; one dimensional heat conduction,

resistance concept, electrical analogy, unsteady heat conduction, fins;

dimensionless parameters in free and forced convective heat transfer,

various correlations for heat transfer in flow over flat plates and through

pipes; thermal boundary layer; effect of turbulence; radiative heat transfer,

black and grey surfaces, shape factors, network analysis; heat exchanger

performance, LMTD and NTU methods.

Thermodynamics: Zeroth, First and Second laws of thermodynamics;

thermodynamic system and processes;Carnot cycle. irreversibility and

availability; behaviour of ideal and real gases, properties of pure substances,

calculation of work and heat in ideal processes; analysis of thermodynamic

cycles related to energy conversion.

Applications: Power Engineering: Steam Tables, Rankine, Brayton cycles

with regeneration and reheat. I.C. Engines: air-standard Otto, Diesel cycles.

Refrigeration and air-conditioning: Vapour refrigeration cycle, heat

pumps, gas refrigeration, Reverse Brayton cycle; moist air: psychrometric

chart, basic psychrometric processes. Turbomachinery: Pelton-wheel, Francis

and Kaplan turbines — impulse and reaction principles, velocity diagrams.

Engineering Materials: Structure and properties of engineering materials,

heat treatment, stress-strain diagrams for engineering materials.

Metal Casting: Design of patterns, moulds and cores; solidification and

cooling; riser and gating design, design considerations.

Forming: Plastic deformation and yield criteria; fundamentals of hot and

cold working processes; load estimation for bulk (forging, rolling, extrusion,

drawing) and sheet (shearing, deep drawing, bending) metal

forming processes; principles of powder metallurgy.

Joining: Physics of welding, brazing and soldering; adhesive bonding;

design considerations in welding.

Machining and Machine Tool Operations: Mechanics of machining, single

and multi-point cutting tools, tool geometry and materials, tool life and

wear; economics of machining; principles of non-traditional machining

processes; principles of work holding, principles of design of jigs and fixtures

Metrology and Inspection: Limits, fits and tolerances; linear and angular

measurements; comparators; gauge design; interferometry; form and finish

measurement; alignment and testing methods; tolerance analysis in

manufacturing and assembly.

Computer Integrated Manufacturing: Basic concepts of CAD/CAM and

their integration tools.

Production Planning and Control: Forecasting models, aggregate

production planning, scheduling, materials requirement planning.

Inventory Control: Deterministic and probabilistic models; safety stock

inventory control systems.

Operations Research: Linear programming, simplex and duplex method,

transportation, assignment, network flow models, simple queuing models,

PERT and CPM.