hossain - AAE 666 Final Presentation Final Backstepping...

Info icon This preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
February 24, 2005 1 AAE 666 - Final Presentation Final Presentation Backstepping Based Flight Control Backstepping Based Flight Control Asif Hossain
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
February 24, 2005 2 Overview Modern Aircraft Configuration Aircraft Dynamics Force, Moment and Attitude Equations Current Approaches to Flight Control Design Backstepping Approaches to Flight Control Design Backstepping Backstepping Design for Flight Control Flight Control Laws Simulation
Image of page 2
February 24, 2005 3 Modern Aircraft Configuration
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
February 24, 2005 4 Aircraft Dynamics , Aircraft position expressed in an Earth-fixed coordinate system; , The velocity vector expressed in the body-axis coordinate system; , The Euler angles describing the orientation of the aircraft relative to the Earth-fixed coordinate system; , The angular velocity of the aircraft expressed in the body axes coordinate system; T E N h p p ) ( = P T w v u ) ( = V T ) ( ψ θ φ = Φ T r q p ) ( = ω
Image of page 4
February 24, 2005 5 Aerodynamics Forces and Moments Body axis coordinate system
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
February 24, 2005 6 Force Equations (Body-axes) Z m g pv qu w Y m g ru pw v F X m g qw rv u T 1 cos cos 1 cos sin ) ( 1 sin + + - = + + - = + + - - = θ φ θ φ θ Rewrite the force equations in terms of T V and , β α β α β β α cos sin sin cos cos T T T V w V v V u = = = 2 2 2 arcsin arctan w v u V V v u w T T + + = = = β α
Image of page 6
February 24, 2005 7 Force Equations (wind-axes) ( 29 1 cos cos 1 mg F D m V T T + + - = β α ) sin ( cos 1 tan ) sin cos ( 2 mg F L mV r p q T T + - - + + - = α β β α α α ) sin cos ( 1 cos sin 3 mg F Y mV r p T T + - + - = β α α α β ) cos cos sin sin sin cos sin sin cos (cos ) sin sin cos cos (cos ) cos cos cos sin sin cos sin sin cos cos ( 3 2 1 φ θ β α θ α β φ θ β θ α φ θ α φ θ β α φ θ β θ β α - + = + = + + - = g g g g g g Where the contributions due to gravity are given by,
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
February 24, 2005 8 Moment and Attitude Equations Moment Equations: Attitude Equations: N c L c q r c p c r Z F M c r p c pr c q N c L c q p c r c p TP T 9 4 2 8 7 2 2 6 5 4 3 2 1 ) ( ) ( ) ( ) ( + + - = + + - - = + + + = θ φ φ ψ φ φ θ θ φ θ φ cos cos sin sin
Image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern