Courses

L-T-P-D-C (3-0-0-0-9)

Pre-requisite - None

Course Contents: Attitude dynamics and stability of three axis stabilized, single spin, dual spin, and multi body spacecraft with a1ticulated antennas, sensors, and solar arrays. Design of control of three axis stabilized spacecraft in orbit using reaction wheels, thrusters, magnets, single and double gimbaled control moment gyros Large angle three axis attitude maneuver controllers using reaction wheels and thrusters Control of spinning spacecraft in transfer orbit during delta_ v firing and in operational orbits around the Earth, and design of active nutation control Attitude stabilization of bias momentum spacecraft using magnets and thrusters Dynamics and control of dual spin spacecraft Precision pointing and tracking controllers for tracking landmarks, moving objects, and other satellites for crosslink communication Solar array controllers for tracking the Sun; determining the array's orientation with sun sensors Modeling of dynamics of flexible solar arrays, its interaction with spacecraft dynamics and control systems Attitude determination with gyros, star trackers, sun sensors, and horizon sensors using algorithms such as TRIAD and QUEST (quaternion estimator); sensors error characteristics; and Kalman filtering Guidance and navigation for spacecraft rendezvous The above control techniques will be related with the control of Indian communication, remote sensing, and other special purpose satellites (Ca1tosat, Edusat, telemedicine).

References/Text Books:

Course Reference :

Hughes, P.C., Spacecraft Attitude Dynamics, John Wiley, 1986.
Sidi, M.J., Spacecraft Dynamics and Control, Cambridge University Press, 1997
Noton, M., Spacecraft Navigation and Guidance, Springer 1998
Kaplan, M.H., Modern Spacecraft Dynamics and Control, John Wiley, 1976
Agrawal, B., Design of Geosynchronous Spacecraft, Prentice Hall, 1986
Bryson, A.E., Control of Spacecraft and Aircraft, Princeton University Press, 1994
Pocha, J.J., An Introduction to Mission Design for Geostationary Satellites, D. Reidel,1987
Mara[, G., and Bousquet, M., Satellite Communications Systems, Fourth Edition, JohnWiley, 2006.
Wie, B., Space Vehicle Dynamics and Control, AIAA Education Series, 1998

L-T-P-D-C (3-0-0-0-9)

Prerequisite – None

Introduction: Importance of Heat Transfer in Aerospace Applications, Different Modes of Heat Transfer, Governing Equations of Fluid Dynamics and Heat Transfer, Material and Transport Properties in Heat Transfer.

Heat Conduction and Convection: Steady and Transient Heat Conduction, Lumped Heat Capacitance Method, Natural Convection, External/Internal Forced Convection for Laminar and Turbulent Flows, Transport Properties of Gases at High Temperatures, Thermal Boundary Layers, High Speed Aerodynamic Heating

Radiation: Stefan-Boltzmann law, Spectral Energy Density, Spectral Absorptivity and Emissivity, Kirchoff's Law, Surface Radiation, Problems on Surface Radiation, Radiation Pressure, Radiation through Participating Media, Shock Layer Radiation, Equilibrium and Non- equilibrium Thermal Radiation, Bound-Bound Thermal Radiation (Including Rotational and Vibrational Transitions)

Thermal Management of Aerospace Systems: Active and Passive Heating/Cooling Mechanisms, Heat Sinks, Thermal Interface Materials, Radiative Cooling, Phase Change Materials, Heat Pipes, Film Cooling, Heat Exchangers (Recuperative and Regenerative Type)

Thermal Protection System (TPS) Design and Analysis: Different kinds of Insulation used in Aerospace Applications, Mechanisms of TPS (Ablative and Non-ablative), TPS for High-Speed Vehicles (missiles), TPS for Reentry Space Capsules, Design and One-dimensional Numerical Analysis of TPS

Introduction to the Thermo-structural Aspects of High-Speed Vehicles: Thermal Stresses, Structural Properties at Elevated Temperatures, Thermo-structural Design of Aerospace Systems

Introduction to the Experimental Investigation of High-Speed Flows: Shock Tunnel, Arc-jet Tunnel, Plasma Wind Tunnel

Reference Books:

Heat Transfer, Alan J. Chapman, 4th Edition, The Macmillan Company, 1984.
Fundamentals of Heat and Mass Transfer, Incropera, Devitt, Bergmann, Lavine, 6th Edition, Wiley India Pvt. Ltd., 2006.
Thermal Radiation Heat Transfer, J.R. Howell, R. Siegel, M.P. Menguc, 5th Edition, 2010.
Ablative Thermal protection Systems Modeling, Georges Duffa, AIAA Education Series, 2012.

L-T-P-D-C (3-0-0--4)

Pre-requisite - None

Course Contents: Attitude dynamics and stability ofthreeaxis stabilized, singlespin, dualspin, and multibodyspacecraft with a1ticulated antennas, sensors, and solar arrays.Design of control ofthreeaxis stabilized spacecraft in orbit using reaction wheels, thrusters,magnets, single and doublegimbaled control moment gyrosLargeangle threeaxis attitude maneuver controllers using reaction wheels and thrustersControl of spinning spacecraft in transfer orbit during delta_ v firing and in operational orbitsaround the Earth, and design of active nutation controlAttitude stabilization of bias momentum spacecraft using magnets and thrustersDynamics and control of dualspin spacecraftPrecision pointing and tracking controllers for tracking landmarks, moving objects, and othersatellites for crosslink communicationSolar array controllers for tracking the Sun; determining the array's orientation with sun sensorsModeling of dynamics of flexible solar arrays, its interaction with spacecraft dynamics andcontrol systemsAttitude determination with gyros, star trackers, sun sensors, and horizon sensors usingalgorithms such as TRIAD and QUEST (quaternion estimator); sensors error characteristics; andKalman filteringGuidance and navigation for spacecraft rendezvousThe above control techniques will be related with the control of Indian communication, remotesensing, and other special purpose satellites (Ca1tosat, Edusat, telemedicine).

References/Text Books:

Hughes, P.C., Spacecraft Attitude Dynamics, John Wiley, 1986.
Sidi, M.J., Spacecraft Dynamics and Control, Cambridge University Press, 1997
Noton, M., Spacecraft Navigation and Guidance, Springer 1998
Kaplan, M.H., Modern Spacecraft Dynamics and Control, John Wiley, 1976
Agrawal, B., Design of Geosynchronous Spacecraft, Prentice Hall, 1986
Bryson, A.E., Control of Spacecraft and Aircraft, Princeton University Press, 1994
Pocha, J.J., An Introduction to Mission Design for Geostationary Satellites, D. Reidel,1987
Mara[, G., and Bousquet, M., Satellite Communications Systems, Fourth Edition, JohnWiley, 2006.
Wie, B., Space Vehicle Dynamics and Control, AIAA Education Series, 1998.

L-T-P-D-C (3-0-0-0-9)

Pre-requisite - None

Course Contents: Course Details: Attitude dynamics and stability ofthreeaxis stabilized, singlespin, dualspin, and multibodyspacecraft with a1ticulated antennas, sensors, and solar arrays.Design of control ofthreeaxis stabilized spacecraft in orbit using reaction wheels, thrusters,magnets, single and doublegimbaled control moment gyrosLargeangle threeaxis attitude maneuver controllers using reaction wheels and thrustersControl of spinning spacecraft in transfer orbit during delta_ v firing and in operational orbitsaround the Earth, and design of active nutation controlAttitude stabilization of bias momentum spacecraft using magnets and thrustersDynamics and control of dualspin spacecraftPrecision pointing and tracking controllers for tracking landmarks, moving objects, and othersatellites for crosslink communicationSolar array controllers for tracking the Sun; determining the array's orientation with sun sensorsModeling of dynamics of flexible solar arrays, its interaction with spacecraft dynamics andcontrol systemsAttitude determination with gyros, star trackers, sun sensors, and horizon sensors usingalgorithms such as TRIAD and QUEST (quaternion estimator); sensors error characteristics; andKalman filteringGuidance and navigation for spacecraft rendezvousThe above control techniques will be related with the control of Indian communication, remotesensing, and other special purpose satellites (Ca1tosat, Edusat, telemedicine).

References/Text Books:

Course Reference :

Hughes, P.C., Spacecraft Attitude Dynamics, John Wiley, 1986.
Sidi, M.J., Spacecraft Dynamics and Control, Cambridge University Press, 1997
Noton, M., Spacecraft Navigation and Guidance, Springer 1998
Kaplan, M.H., Modern Spacecraft Dynamics and Control, John Wiley, 1976
Agrawal, B., Design of Geosynchronous Spacecraft, Prentice Hall, 1986
Bryson, A.E., Control of Spacecraft and Aircraft, Princeton University Press, 1994
Pocha, J.J., An Introduction to Mission Design for Geostationary Satellites, D. Reidel,1987
Mara[, G., and Bousquet, M., Satellite Communications Systems, Fourth Edition, JohnWiley, 2006.
Wie, B., Space Vehicle Dynamics and Control, AIAA Education Series, 1998.

L-T-P-D-C (2-0-3-0-4)

Pre-requisite - None

Course Contents:

Introduction to: design process, design goals, types of rotorcraft (2 Lec.)
Understanding mission requirements, use of Analytical Hierarchy Process in configuration selection (2 Lec.) (1 Lab.)
Concept selection methodology: collection of statistical data, Pugh's method, key performance indices, life cycle costs (2 Lec.) (1 Lab.)
Generating design alternatives: preliminary sizing using Tischenko's Method, preliminaryweight estimation, rotor propulsive efficiency, Lift/Drag ratio, engine performance, main ro tor blade weight estimation, rotor hub and swash plate (3 Lec.) (1 Lab.)
Performance: power required for hover, climb, level flight, maximum level speed, speed forbest endurance, best range, autorotative per formance (3 Lec.) (2 Lab.)
Main rotor configuration design: rotor struc tural and aerodynamic design (number ofblades, rotor diameter, blade chord, rotor iner tia, blade twist, blade taper, blade tip shape, sweep, root cutout, tip speed, hinge offset, air foils, frequency placement, material selection) (5 Lec.) (3 Lab.)
Rotor component design: hub design, control power, helicopter stability considerations (3 Lec.) (2 Lab.)
Tail rotor/ antitorque systems: diameter, tip speed, disk area, number of blades, pusher vstractor (2 Lec.) (1 Lab.)
Fuselage and landing gear design (4 Lec.) (2 Lab.)
Vibration sources, vibration reduction (2 Lec.) (1 Lab.)
Life cycle cost estimation: environmental cost, purchase cost. operating cost(2 Lec.) (1 Lab.)

References/Text Books:

Leishman, J. G., Principles of Helicopter Aerodynamics, Cambridge Aerospace Series,2000.
Prouty, R. W., Helicopter Performance, Stability, and Control, Krieger Publishing Company, Florida, 1986.
Stepniewski, W. Z., and Keys, C. N., Rotary Wing Aerodynamics, Dover, New York,1984.
Venkatesan, C., Lecture Notes on Helicopter Technology, Department of AerospaceEngineering, liT Kanpur, 2000.
Filippone, A., Flight Performance of Fixed and Rotary Wing Aircraft, AIAA EducationSeries, 2006.

L-T-P-D-C (2-0-3-0-9)

Pre-requisite - None

Course Contents:

Introduction to: design process, design goals, types of rotorcraft (2 Lec.)
Understanding mission requirements, use of Analytical Hierarchy Process in configuration selection (2 Lec.) (1 Lab.)
Concept selection methodology: collection of statistical data, Pugh's method, key performance indices, life cycle costs (2 Lec.) (1 Lab.)
Generating design alternatives: preliminary sizing using Tischenko's Method, preliminaryweight estimation, rotor propulsive efficiency, Lift/Drag ratio, engine performance, main ro tor blade weight estimation, rotor hub and swash plate (3 Lec.) (1 Lab.)
Performance: power required for hover, climb, level flight, maximum level speed, speed forbest endurance, best range, autorotative per formance (3 Lec.) (2 Lab.)
Main rotor configuration design: rotor struc tural and aerodynamic design (number ofblades, rotor diameter, blade chord, rotor iner tia, blade twist, blade taper, blade tip shape, sweep, root cutout, tip speed, hinge offset, air foils, frequency placement, material selection) (5 Lec.) (3 Lab.)
Rotor component design: hub design, control power, helicopter stability considerations (3 Lec.) (2 Lab.)
Tail rotor/ antitorque systems: diameter, tip speed, disk area, number of blades, pusher vstractor (2 Lec.) (1 Lab.)
Fuselage and landing gear design (4 Lec.) (2 Lab.)
Vibration sources, vibration reduction (2 Lec.)(1 Lab.)
Life cycle cost estimation: environmental cost, purchase cost. operating cost(2 Lec.) (1 Lab.)

References/Text Books:

Course Reference :

Leishman, J. G., Principles of Helicopter Aerodynamics, Cambridge Aerospace Series,2000.
Prouty, R. W., Helicopter Performance, Stability, and Control, Krieger Publishing Company, Florida, 1986.
Stepniewski, W. Z., and Keys, C. N., Rotary Wing Aerodynamics, Dover, New York,1984.
Venkatesan, C., Lecture Notes on Helicopter Technology, Department of AerospaceEngineering, liT Kanpur, 2000.
Filippone, A., Flight Performance of Fixed and Rotary Wing Aircraft, AIAA EducationSeries, 2006.

L-T-P-D-C (3-0-0-0-9)

Pre-requisite - Linear algebra, basic of control systems and probability theory.

Course Contents:

Introduction and Static optimization - Course introduction: static optimization, optimal control and reinforcement learning; Variational cones, Gâteaux and Fréchet derivatives, Weirstrass Function
Constrained optimization - Minima and maxima of functions subject to constraints, Lagrange multipliers; Kuhn-Tucker conditions, Minima and maxima of functionals
Optimal control and HJB equations - Optimal control: Variational Calculus Approach, Euler- Lagrange equation, Brachistochrone problem, Tautochrone problem, Catenary problem, Hamilton- Jacobi-Bellman Equation, LQR, Pontryagin's Minimum Principle, State Dependent Riccati Equation (SDRE)
Optimal Feedback Control - Optimal Feedback Control, Neighboring Optimal control, Bang-Bang Control, Singular Optimal Control
Numerical Methods - Two Point Boundary Value Problems (TPBVP) –
Shooting and Gradient Methods, Model Predictive Static Programming
Direct Programming - Optimal Control – Direct Methods – Transcription Methods and Nonlinear Programming
Dynamic programming - Dynamic and Approximate Dynamic Programming, Stochastic Optimal Control
Reinforcement Leaning - Introduction to Reinforcement Learning, Markov decision process (MDP), Partially observable Markov decision process (POMDP), Model-based methods
Deep RL - Policy gradient, Value function, actor-critic, deep RL with Q-functions
Advance topics - Probability and variational inference, and advance topics

References/Text Books:

J.T. Betts, Practical Methods for Optimal Control and Estimation Using Nonlinear Programming, Siam, 2010.
A.E. Bryson and Y-C Cho, Applied Optimal Control, Taylor and Franics, 1975.
D.P. Bertsekas, Dynamic Programming and Optimal Control, Vols. I and II, Athena Scientific, 1995.
D.P. Bertsekas, Reinforcement Learning and Optimal Control, Athena Scientific, 2019.
R.S. Sutton and A. G. Batro, Reinforcement Learning: An Introduction, MIT press, Cambridge, MA, 2018.
M.L. Puterman, Markov Decision Processes: Discrete Stochastic Dynamic Programming, Wiley Series in Probability and Statistics, 2005.

L-T-P-D-C (3-0-0-0-9)

Prerequisite – Undergraduate Mathematics, Fluid Mechanics, Compressible flows

Introduction: Unsteady processes and its effects on combustors, combustion noise, combustion instability

Fundamentals of duct acoustics: Derivation of wave equation, speed of sound, harmonic waves, acoustic energy/intensity, decibel scale, acoustic impedance, reflection and transmission, traveling & standing waves, eigenfrequency and eigenmodes, effects of area variation

Hydrodynamic flow stability of combustor flow fields: Normal modes in parallel flows: basic formulation, general results for temporal instability, absolute & convective instability, stability analysis in free shear layers, wakes/bluff body flow fields, jets, swirling jets and wakes, backward facing steps and cavities

Coupling between acoustic field and unsteady flame: Unsteady heat release rate effects, combustion instability/noise, nonlinear effects and limit cycles

Network modelling: Modelling of combustor using acoustic elements, stability analysis, flame dynamics, solving characteristic equations

Advanced topics: Indirect combustion noise, non-acoustic instabilities, azimuthal combustion instability

Text books:

Tim C. Lieuwen, 2012. Unsteady combustor physics. 1st edn. Cambridge University Press.
Wolfgang Polifke, 2004. Combustion instabilities. VKI Lecture Series” Advances in Acoustics and Applications”, March 15th-19th, 2004, Brussels, Belgium https://www.researchgate.net/publication/255738492 Combustion Instabilities
Lawrence E. Kinsler, Austin R. Frey, and Alan B. Coppens, 2000. Fundamentals of acoustics. 4th edn. John-Wiley & Sons, Inc.

Reference books:

Philip M. Morse and K. Uno Ingard, 1986. Fundamentals of acoustics. 1st edn. Prince- ton University Press.
S.W. Rienstra & A. Hirschberg, 2000. An introduction to acoustics. http://www.win.tue.nl/ sjo- erdr/papers/boek.pdf
3. S.W. Rienstra & A. Hirschberg, 2004. An introduction to aeroacoustics. http://www.win.tue.nl/ sjoerdr/papers/les-swr-mh.pdf

L-T-P-D-C (3-1-0-1-4)

Pre-requisite - None

Course Contents: Free body diagram with examples on modelling of typical supports and joints,Conditions for equilibrium in 3D and 2D, Friction: limiting and nonlimiting cases; Forcedisplacementrelationship and geometric compatibility (for small deformations) with illustrations through simpleproblems on axially loaded members and thinwalled pressure vessels; Concept of stress at a point,Plane stress case: transformation of stresses at a point, principal stresses and Mohr's circle,Displacement field, Concept of strain at a point, Plane strain case: transformation of strain at a point,principal strains and Mohr's circle, Strain Rosette; Discussion of experimental results on 1D materialbehaviour, Concepts of elasticity, plasticity, strainhardening, failure (fracture/yielding), Idealization of1D stressstrain curve, Generalized Hooke's law (without and with thermal strains) for isotropicmaterials, Complete equations of elasticity; Force analysis (axial force, shear force, bending moment,and twisting moment diagrams) of slender members (singularity functions nat to be used); Torsion ofcircular shafts and thinwalled tubes ( plastic analysis and rectangular shafts not to be discussed);Moment curvature relationship for pure bending of beams with symmetric crosssection, bending stress,shear stress (Shear centre and plastic analysis not to be discussed); Cases of combined stresses, Conceptof strain energy, Yield criteria; Deflection due to bending, Integration of the momentcurvaturerelationship for simple boundary conditions, Method of superposition (singularity functions not to beused); Strain energy and complementary strain energy for simple structural elements (those under axialload, shear force, bending moment, and torsion), Castigliano's theorems for deflection analysis andindeterminate problems; Concept of elastic instability, Introduction to column buckling, Euler's formula(postbuckling behaviour not to be covered)

References/Text Books:

Crandall, S.H., Dahl, N.C., and Lardner, T. J., An Introduction to the Mechanics of Solids, McGrawHill,Second Ed. with 51 Units, 1978.
Beer, F.P, Johnston, E.R. and DeWolf, J.T., Mechanics of Materials, Tata McGrawHill Edition2004
Meriam, J.L. and Kraige, L.G., Engineering Mechanics, Vol. 1: Statics, John Wiley,Second Ed. with 51 Units, 1980.
Popov, E.P., Engineering Mechanics of Solids, PrenticeHall, First Ed., 1990

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