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GATE 2017 Aerospace Engineering (AE) Syllabus

Last Updated - October 20, 2016

Section1: Engineering Mathematics

Core TopicsSub Topics
Linear AlgebraVector algebra, Matrix algebra, systems of linear equations, rank of a matrix, eigenvalues and eigenvectors.
CalculusFunctions of single variable, limits, continuity and differentiability, mean value theorem, chain rule, partial derivatives, maxima and minima, gradient, divergence and curl, directional derivatives. Integration, Line, surface and volume integrals. Theorems of Stokes, Gauss and Green.
Differential EquationsFirst order linear and nonlinear differential equations, higher order linear ODEs with constant coefficients. Partial differential equations and separation of variables methods.
Special TopicsFourier Series, Laplace Transforms, Numerical methods for linear and nonlinear algebraic equations, Numerical integration and differentiation.

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Section 2: Flight Mechanics

Core TopicsSub Topics
BasicsAtmosphere: Properties, standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts.
Airplane performancePressure altitude; equivalent, calibrated, indicated air speeds; Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Drag polar; takeoff and landing; steady climb & descent, absolute and service ceiling; cruise, cruise climb, endurance or loiter; load factor, turning flight, V-n diagram; Winds: head, tail & cross winds
Static stabilityAngle of attack, sideslip; roll, pitch & yaw controls; longitudinal stick fixed & free stability, horizontal tail position and size; directional stability, vertical tail position and size; dihedral stability. Wing dihedral, sweep & position; hinge moments, stick forces.
Special TopicsDynamic stability: Euler angles; Equations of motion; aerodynamic forces and moments, stability & control derivatives; decoupling of longitudinal and lateral-directional dynamics; longitudinal modes; lateral-directional modes.

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Section 3: Space Dynamics

Core TopicsCentral force motion, determination of trajectory and orbital period in simple cases.
Special TopicsOrbit transfer, in-plane and out-of-plane.

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Section 4: Aerodynamics

Core TopicsSub Topics
Basic Fluid Mechanics

Conservation laws: Mass, momentum (Integral and differential form).

Potential flow theory: sources, sinks, doublets, line vortex and their superposition; Viscosity, Reynold's number.

Airfoils and wingsAirfoil nomenclature; Aerodynamic coefficients: lift, drag and moment; Kutta-Joukoswki theorem; Thin airfoil theory, Kutta condition, starting vortex; Finite wing theory: Induced drag, Prandtl lifting line theory; Critical and drag divergence Mach number.
Compressible FlowsBasic concepts of compressibility, Conservation equations; One dimensional compressible flows, Fanno flow, Rayleigh flow; Isentropic flows, normal and oblique shocks, Prandtl-Meyer flow; Flow through nozzles and diffusers.
Special TopicsElementary ideas of viscous flows including boundary layers; Wind Tunnel Testing: Measurement and visualization techniques.

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Section 5: Structures

Core TopicsSub Topics
Strength of Materials

States of stress and strain. Stress and strain transformation. Mohr's Circle. Principal stresses. Three-dimensional Hooke's law. Plane stress and strain; Failure theories: Maximum stress, Tresca and von Mises; Strain energy. Castigliano's principles. Analysis of statically determinate and indeterminate trusses and beams. Elastic flexural buckling of columns.

Flight vehicle structuresCharacteristics of aircraft structures and materials. Torsion, bending and flexural shear of thin-walled sections. Loads on aircraft.
Structural DynamicsFree and forced vibrations of undamped and damped SDOF systems. Free vibrations of undamped 2-DOF systems
Special TopicsVibration of beams. Theory of elasticity: Equilibrium and compatibility equations, Airy’s stress function.

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Section 6: Propulsion

Core TopicsSub Topics
Basics

Thermodynamics, boundary layers and heat transfer and combustion thermochemistry.

Thermodynamics of aircraft enginesThrust, efficiency and engine performance of turbojet, turboprop, turbo shaft, turbofan and ramjet engines, thrust augmentation of turbojets and turbofan engines. Aerothermodynamics of non-rotating propulsion components such as intakes, combustor and nozzle.
Axial compressors:Angular momentum, work and compression, characteristic performance of a single axial compressor stage, efficiency of the compressor and degree of reaction.
Axial turbinesAxial turbine stage efficiency
Centrifugal compressorCentrifugal compressor stage dynamics, inducer, impeller and diffuser
Rocket propulsion:Thrust equation and specific impulse, vehicle acceleration, drag, gravity losses, multi-staging of rockets. Classification of chemical rockets, performance of solid and liquid propellant rockets.

Syllabus Of Other Papers

PaperCodePaperCode
Engineering SciencesXEMechanical EngineeringME
Agricultural EngineeringAGMetallurgical EngineeringMT
Civil EngineeringCEMining EngineeringMN
Chemical EngineeringCHPetroleum EngineeringPE
Computer Science and Information TechnologyCSProduction and Industrial EngineeringPI
Electronics and CommunicationECTextile Engineering and Fibre ScienceTF
Electrical EngineeringEEBiotechnologyBT
Instrumentation EngineeringIN  

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