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Indian Institute of Technology Kanpur

Aircraft Stability and Control

Indian Institute of Technology Kanpur and NPTEL via Swayam

Overview

This course is designed to understand stability and control aspects of an airplane. This course will also help in creating a background to design an airplane from stability and control aspects.INTENDED AUDIENCE : Core course for UG studentsINDUSTRY SUPPORT : NAL Bangalore, ARDE Pune, ADE Bangalore, ADA Bangalore

Syllabus

Week 1:Overview of aerodynamics and atmosphere,Wing stall and maximum lift coefficient,Wing aerodynamic center & pitching moment,Introduction to static and dynamic stability.

Week 2:Introduction to static and dynamic stability,Wing contribution,Tail contribution,Canard and fuselage contribution.

Week 3:Power plant contribution & its effect on NP,Stick fixed neutral point,Static margin,Stick fixed : maneuvering point.

Week 4:Elevator effectiveness, Elevator angle of trim,Flight measurement of Xnp,Elevator hinge moment,Stick forces (trim tab & stick force gradient),

Week 5:Stick free neutral point,Stick free : maneuvering point,Roll stability and roll control,Yaw stability and yaw control.

Week 6:Newton’s second law of rigid dynamics,Axes system and relevant transforms, Angular motion equations.

Week 7:Aerodynamic forces,Gravitational and thrust forces,Linearized equations of motion,

Week 8:Force and moment derivatives,Force and moment derivatives,Contribution of aircraft components to aerodynamic derivatives,Linear model.

Week 9:Short period approximation,Long period approximation,Pure pitching motion,Flying and handling qualities.

Week 10:Linearized lateral dynamics.Lateral motion :Linearized coupled motion,Roll approximation,Spiral approximation.

Week 11:Dutch roll approximation.Pure rolling.Pure yawing,Inertia coupling.

Week 12:Stability augmentation system: Longitudinal,Stability augmentation system: Lateral.

Taught by

A K Ghosh

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