spContent=What stability and control requirements should a flyable airplane satisfy?
How to evaluate the stability and control characteristics of an airplane?
You will find answers in this course.
What stability and control requirements should a flyable airplane satisfy?
How to evaluate the stability and control characteristics of an airplane?
You will find answers in this course.
—— Instructors
About this course
"Stability and Control" are the most basic and important characteristics of an airplane.
This course mainly discusses how to determine the airplane design requirements from the perspective of stability and control characteristics, and how to evaluate the stability and control characteristics of a given airplane.
Through the study of this course, students will master the concept of static stability, dynamic stability, the influence of airplane components on stability, how to control an airplane, how to build the airplane mathematical model, and how to evaluate the stability and control characteristics of an airplane.
Objectives
Students will get a straight understanding to airplane stability and control.
On completing the course, students will be able to:
1. Understand the mechanism of static/dynamic stability and control;
2. Derive and linearize the Equation of Motion;
3. Analyze and evaluate the static/dynamic stability and control.
Syllabus
Introduction, Basic Concepts and Definitions
1.1 Introduction
1.2 Flying Qualities
1.3 Axes and Notations
1.4 Longitudinal Stability and Criterion
Longitudinal Static Stability Contributions
2.1 Wing and Fuselage Contributions
2.2 Horizontal Tail Contribution
2.3 Power System Contribution
2.4 Total Static Stability and Neutral Point
Longitudinal Control and Trim
3.1 Longitudinal Control Surfaces
3.2 Longitudinal Trim
3.3 Trim Curve with Velocity
3.4 Ground Effect
Control Force and Stability in Maneuver Flight
4.1 Hinge Moment and Control Force
4.2 Stick-free Stability
4.3 Longitudinal Static Stability in Maneuver Flight
4.4 CG Location and Maneuverability
CG Limits and Directional Static Stability
5.1 Relaxed Static Stability
5.2 CG Limits
5.3 Static Directional Stability Definition and Criterion
5.4 Wing Contribution on Static Directional Stability
Directional Stability Contributions and Control Surfaces
6.1 Tail Contributions
6.2 Power System Contributions
6.3 Total Static Directional Stability
6.4 Directional Control Surfaces
Lateral Stability, Criterion and Control
7.1 Directional Control Requirements
7.2 Lateral Stability and Criterion
7.3 Wing Contribution on Static Lateral Stability
7.4 Lateral Control Surfaces
Equations of Motion
8.1 Axes Systems
8.2 Axes Transformation
8.3 Modeling of Equation of Motion
8.4 Solution of EOM
Eigenvalue and Dynamic Stability
9.1 Small Disturbance Theory
9.2 Eigenvalue and Dynamic Stability
9.3 Typical Eigenvalue and Modes
9.4 Short Period Mode
Typical Modes
10.1 Phugoid Mode
10.2 Roll-subsidence Mode
10.3 Dutch-roll Mode
10.4 Spiral Mode
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Prerequisites
Advanced Mathematics, Fundamentals of Aerodynamic, Theoretical Mechanics
References
Bandu Pamadi. Performance, Stability, Dynamics, and Control of Airplanes. AIAA Series, 2004
Bernard Etkin. Dynamics of Flight - Stability and Control, 3rd Edition. John Wiley & Sons, 1996
Michael V. Cook. Flight Dynamics Principles, Elsevier, 2013