AO4201 Advanced Flight Dynamics Syllabus:
AO4201 Advanced Flight Dynamics Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
This course will enable students
1. To gain in depth knowledge on aircraft performance in level, climbing, gliding flight modes.
2. To get familiarize the equations of motion in accelerated flight modes.
3. To impart knowledge on the basic aspects of stability and control of an airplane about three axis.
4. To provide adequate knowledge on various parameters that decide the stability level of an airplane.
5. To be familiar with the aspects of control in longitudinal, lateral and directional modes.
UNIT I STEADY FLIGHT PERFORMANCE
Overview of Aerodynamics and ISA – Straight and level flight: thrust and power required/available, differences of propeller-driven and jet-powered airplanes, maximum speed, effects of altitude – Climb and Descent performance: climb angle and rate of climb, descent angle and rate of descent – Range, endurance of propeller driven and jet powered airplanes.
UNIT II MANEUVER PERFORMANCE
Level turn – maximum producible load factor – fastest and tightest turn – Vertical maneuver: pullup and pull-out, pull-down – gust V-n diagram –Take off and landing performance.
UNIT III STATIC LONGITUDINAL STABILITY AND CONTROL
Static equilibrium and stability – Pitch stability of conventional and canard aircraft – control fixed neutral point and static margin – effect of fuselage and running propellers on pitch stability – control surface hinge moment – control free neutral point – limit on forward CG travel –maneuver stability: Pull – up & level turn – control force and trim tabs – control force for maneuver– measurement of neutral point and maneuver point by flight tests.
UNIT IV STATIC LATERAL, DIRECTIONAL STABILITY AND CONTROL
Yaw and side slip, effect of wing sweep, wing dihedral and vertical tail on directional stability – rudder fixed and rudder free – yaw control – rudder sizing – pedal force – dihedral effect: contribution of various components- roll control.
UNIT V AIRCRAFT DYNAMICS
Rigid body equations of motion – Axes systems and their significance – Euler angles – linearization of longitudinal equations – force and moment derivatives – short period and phugoid approximations – pure pitching motion – linearization of equations for lateral – directional motion – roll, spiral and dutch roll approximations- Pure rolling- Pure yawing – Inertia coupling.
L : 45, TOTAL: 45 PERIODS
COURSE OUTCOMES:
At the end of this course, students will
CO1: Be able to assess the performance of aircraft in steady and maneuver flights.
CO2: Have thorough knowledge in order to perform preliminary design computations to meet static stability and trim requirements of aircrafts.
CO3: Be able to determine the fixed neutral point and the stick fixed static margin.
CO4: Be able to describe the effect of change in CG on the aircraft stability.
CO5: Apply the small disturbance equations of motion, and identify longitudinal and lateral sets of equations, construct state space models for longitudinal and lateral aircraft dynamics.
REFERENCES:
1. Anderson,JD, “Aircraft Performance & Design”, First edition, Mc Graw Hill India, 2010.
2. McCormick, BW, “Aerodynamics, Aeronautics, & Flight Mechanics”, 2nd edition, John Wiley & Sons, 1995.
3. Michael V. Cook, “Flight Dynamics Principles”, Second edition, Elsevier, 2007.
4. Nelson, RC,“Flight Stability & Automatic Control”, Second edition, McGraw-Hill, 2017.
5. Perkins CD &Hage, RE,“Airplane performance, stability and control”, Wiley India Pvt Ltd, 2011.
6. Brain else stephsnos, Frank loie aircraft simulation and control, AIAA