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Aircraft Flight Dynamics Robert F Stengel Lecture20 Flying Qualities Criteria

Aircraft Flight Dynamics Robert F. Stengel  Lecture20 Flying Qualities Criteria

Aircraft Flight Dynamics Robert F. Stengel Lecture20 Flying Qualities Criteria

... control inputs, Δu(t)" Flying Qualities Criteria Robert Stengel, Aircraft Flight Dynamics MAE 331, 2012"Copyright 2012 by Robert Stengel. All rights reserved. For educational use only.!http://www.princeton.edu/ ~stengel/ MAE331.html!http://www.princeton.edu/ ~stengel/ FlightDynamics.html!•  ... Locus!Pilot -Aircraft Nichols Chart!Pilot Transfer Function! Aircraft Transfer Function!YF-16!YF-17 Landing Approach Simulation"•  Original design"–  Low short-period natural frequency"–  ... other lateral-directional criteria& quot;•  Pilot-vehicle interactions"•  Flight control system design"Design for Satisfactory Flying Qualities& quot;•  Satisfy procurement requirement...
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Aircraft Flight Dynamics Robert F. Stengel Lecture1 Introduction to Flight Dynamics

Aircraft Flight Dynamics Robert F. Stengel Lecture1 Introduction to Flight Dynamics

... only.!http://www.princeton.edu/ ~stengel/ MAE331.html!!  Dynamics & Control of Atmospheric Flight !  Configuration Aerodynamics!  Aircraft Performance!  Flight Testing and Flying Qualities !  Aviation HistoryDetails•  ... Velocity"Normal "Velocity"Phases of Flight& quot; Flight of a Paper Airplane Flight of a Paper Airplane
Example 1.3-1, Flight Dynamics& quot;•  Red: Equilibrium flight path"•  ... =x1∫dtx2∫dtx3∫dt⎡⎣⎢⎢⎢⎢⎢⎤⎦⎥⎥⎥⎥⎥ Aircraft Flight Dynamics Robert Stengel, Princeton University, 2012"Copyright 2012 by Robert Stengel. All rights reserved. For educational use only.!http://www.princeton.edu/ ~stengel/ MAE331.html!! ...
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Aircraft Flight Dynamics Robert F. Stengel Lecture2 PointMass Dynamics and Aerodynamic  Thrust Forces

Aircraft Flight Dynamics Robert F. Stengel Lecture2 PointMass Dynamics and Aerodynamic Thrust Forces

... Frame"CXCYCZ⎡⎣⎢⎢⎢⎤⎦⎥⎥⎥B=axial force coefficientside force coefficientnormal force coefficient⎡⎣⎢⎢⎢⎤⎦⎥⎥⎥CDCYCL⎡⎣⎢⎢⎢⎤⎦⎥⎥⎥=drag coefficientside force coefficientlift coefficient⎡⎣⎢⎢⎢⎤⎦⎥⎥⎥•  ... =vxvyvz⎡⎣⎢⎢⎢⎢⎤⎦⎥⎥⎥⎥ F I= f x f y f z⎡⎣⎢⎢⎢⎢⎤⎦⎥⎥⎥⎥I= F gravity+ F aerodynamics+ F thrust⎡⎣⎤⎦IRate of change of position!Rate of change of velocity!Vector of combined forces!Equations ... "qEquations of Motion for a Point MassNewtonian Frame of Reference"•  Newtonian (Inertial) Frame of Reference"–  Unaccelerated Cartesian frame whose origin is referenced to an...
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Aircraft Flight Dynamics Robert F. Stengel Lecture3 Aviation History Mythology to 1990

Aircraft Flight Dynamics Robert F. Stengel Lecture3 Aviation History Mythology to 1990

... effects"•  Short-Takeoff-and-Landing (STOL) aircraft augment takeoff/landing lift in many ways, e.g.,"–  Full-span flaps"–  Deflected thrust"Grumman F8 F!Grumman F4 F!GB R1!CTo,CTV,CTδT,CLδTWorld ... compressibility effects on drag!•  Dramatic change in stability, control, and flying qualities! •  North American FJ-1 and FJ-4 Fury!•  Republic F- 84B Thunderbird and F- 8 4F Thunderstreak!•  Grumman F9 F-2 ... to 1990
 Robert Stengel, Aircraft Flight Dynamics, MAE 331, 2012"Copyright 2012 by Robert Stengel. All rights reserved. For educational use only.!http://www.princeton.edu/ ~stengel/ MAE331.html!http://www.princeton.edu/ ~stengel/ FlightDynamics.html!AntiquityExperimentalists"• ...
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Aircraft Flight Dynamics Robert F. Stengel Lecture5 Configuration Aerodynamics  2.

Aircraft Flight Dynamics Robert F. Stengel Lecture5 Configuration Aerodynamics 2.

... Axes" f B=XBYBZB!"###$%&&&mB=LBMBNB!"###$%&&&Force Vector"Moment Vector" r × f =i j kx y z f x f y f z= yfz− zfy( )i + zfx− xfz( )j + xfy− yfx( )km =yfz− zfy( )zfx− xfz( )xfy− yfx( )#$%%%%&'((((=rf ... =Surface∫LBMBNB"#$$$%&''' f B= f x f y f z!"####$%&&&&dx dy dzSurface∫=XBYBZB!"###$%&&&Configuration Aerodynamics - 2
 Robert Stengel, Aircraft Flight ... Dihedral effect"•  Vertical tail effect"Rolling Moment due to Sideslip Angle!•  Crossflow effects depend on vertical location of the wing"Example of Configuration and Flap Effects!NACA...
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Aircraft Flight Dynamics Robert F. Stengel Lecture6 Cruising Flight Performance

Aircraft Flight Dynamics Robert F. Stengel Lecture6 Cruising Flight Performance

... Cruising Flight Performance
 Robert Stengel, Aircraft Flight Dynamics, MAE 331, 2012!Copyright 2012 by Robert Stengel. All rights reserved. For educational use only.!http://www.princeton.edu/ ~stengel/ MAE331.html!http://www.princeton.edu/ ~stengel/ FlightDynamics.html!•  ... tubes on Fouga Magister"Cessna 172 pitot tube"X-15 Q Ball" Flight Testing Instrumentation"•  Air data measurement far from disturbing effects of the aircraft& quot;z ... 0•  Satisfy necessary condition for a maximum"•  Lift-to-drag ratio"•  Lift coefficient for maximum L/D and minimum thrust are the same"Airspeed, Drag Coefficient, and Lift-to-Drag...
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Aircraft Flight Dynamics Robert F. Stengel Lecture7 Gliding, Climbing, and Turning Performance

Aircraft Flight Dynamics Robert F. Stengel Lecture7 Gliding, Climbing, and Turning Performance

... Glide"Climbing Flight Gliding, Climbing, and Turning Flight Performance
 Robert Stengel, Aircraft Flight Dynamics, MAE 331, 2012!Copyright 2012 by Robert Stengel. All rights reserved. For educational ... Flight Envelope Flight Envelope Determined by Available Thrust"•  Flight ceiling defined by available climb rate"–  Absolute: 0 ft/min"–  Service: 100 ft/min"–  Performance: ... stall"•  Flow-separation buffet"–  Angle of attack"–  Local shock waves"Piper Dakota Stall Buffet"http://www.youtube.com/watch?v=mCCjGAtbZ4g!Boeing 787 Flight Envelope...
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Aircraft Flight Dynamics Robert F. Stengel Lecture8 Aircraft Equations of Motion  1

Aircraft Flight Dynamics Robert F. Stengel Lecture8 Aircraft Equations of Motion 1

... Construct aircraft moments and products of inertia from components using parallel-axis theorem"•  Model in Pro/ENGINEER, etc." Aircraft Equations of Motion - 1
 Robert Stengel, Aircraft ... sequences of 3 rotations can be chosen; however, once sequence is chosen, it must be retained"Effects of Rotation on Vector Transformation from Inertial to Body Frame of Reference"Yaw ... Measurement of Position in Alternative Frames - 1"•  Two reference frames of interest"–  I: Inertial frame (fixed to inertial space)"–  B: Body frame (fixed to body)"•  Differences...
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Aircraft Flight Dynamics Robert F. Stengel Lecture9 Aircraft Equations of Motion  2

Aircraft Flight Dynamics Robert F. Stengel Lecture9 Aircraft Equations of Motion 2

... sinγ!"###$%&&&Relationship of Inertial Axes to Velocity Axes" Aircraft Equations of Motion - 2
 Robert Stengel, Aircraft Flight Dynamics, MAE 331, 2012"•  Rotating frames of reference"•  ... Motionhttp://www.princeton.edu/ ~stengel/ FlightDynamics.html! FLIGHT - MATLAB Program"http://www.princeton.edu/ ~stengel/ FlightDynamics.html! FLIGHT - MATLAB Program"Relationship of Inertial Axes to ... center of mass"Alternative Frames of Reference"•  Orthonormal transformations connect all reference frames"Next Time:Linearization and Modes of MotionReading Flight Dynamics, ...
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Aircraft Flight Dynamics Robert F. Stengel Lecture10 Linearized Equations and Modes of Motion

Aircraft Flight Dynamics Robert F. Stengel Lecture10 Linearized Equations and Modes of Motion

... ∂ψ∂ψ"#$$$$$$$%&'''''''•  Four (6 x 6) blocks distinguish longitudinal and lateral-directional effects " F = F Lon F Lat−DirLon F LonLat−Dir F Lat−Dir"#$$%&''Effects of longitudinal ... Numerically"–  First differences in f( x,u,w)"•  Analytically"–  Symbolic evaluation of analytical models of F, G, and L" F( t ) =∂ f ∂xx =xN(t )u = uN(t )w = wN(t )G(t ) =∂ f ∂ux ... Spring"Spring Force vs. Displacement"Spring" Damper"Displacement"Rate of Change"Linearized Equations 
and Modes of Motion
 Robert Stengel, Aircraft Flight Dynamics MAE...
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