AS3012 Spacecraft Dynamics Syllabus:
AS3012 Spacecraft Dynamics Syllabus – Anna University Regulation 2021
OBJECTIVES:
• To understand the modern spacecraft attitude dynamics and control.
• To study the rotational kinematics and dynamics of the spacecraft in orbit and different methods to passively or actively control the attitude.
• To interpret the implementation of nonlinear control laws for reaction wheels and variable speed control moment gyroscopes.
• To study the mechanism of Gyro dynamics
• To Formulate the Numerical Solution of Flight Dynamics Equations of Motion
• To introduce the attitude determination and control instruments & techniques
UNIT I ORBITAL MECHANICS
Types of spacecrafts – present-day satellites and launch vehicles – orbit determination from injection conditions, position and velocity prediction from orbital elements.
UNIT II SATELLITE OPERATIONS
Geostationary orbit – Hohmann transfer – Inclination changes manoeuvres – launch windows for rendezvous missions – perturbation effects due to earth oblateness – sun synchronous orbits.
UNIT III MECHANICS
Kinematics relative to moving frames – rotations and angular velocity – angular momentum of a system of particles – rotational dynamics for a system of particles.
UNIT IV GYRO DYNAMICS
Displacement, Moment of Momentum, and Kinetic Energy of a Rigid Body – Euler’s equation for Principal axes – Stability of rotation about Principal axes – General motion of a symmetric Gyro – Steady precession of a symmetric Gyro.
UNIT V ATTITUDE MEASUREMENT AND SPACECRAFT ATTITUDE RESPONSE
Rotation matrices – Euler angles – attitude kinematics – Euler’s equations for rotational dynamics – torque free motion of asymmetric and axi-symmetric rigid bodies – effect of energy dissipation on stability of rotational motion – attitude control of spinning and non-spinning satellites – overview of actuation mechanisms for attitude control.
TOTAL = 45 PERIODS
OUTCOMES:
• Solve math models of flight vehicles.
• Solve the operations of the satellite.
• Solve dynamics and control of flight vehicles.
• Show the use of gyroscopes.
• Demonstrate knowledge on the attitude dynamics of aerospace flight vehicles.
• Solve the numerical problems in attitude determination and control instruments techniques
TEXT BOOKS:
1. Peter Fortescue, Graham Swinerd, John Stark, “Spacecraft Systems Engineering”, 4th Ed., Willey, 2011.
2. Wiesel, W. E., “Spaceflight Dynamics”, 3rd Ed., McGraw Hill, 2012.
REFERENCES:
1. Cornelisse, J. W., “Rocket Propulsion and Spaceflight Dynamics”, Pitman, London, 1982.
2. Kaplan, M. H., “Modern Spacecraft Dynamics and Control”, Wiley India Pvt Ltd, 2011.
3. Thompson, W. T., “Introduction to Space Dynamics”, Dover Publications, New York, 1986.