Dynamics of Aircraft Flight

Dynamics of Aircraft Flight

by Gilles Louis
Released July 2022
Publisher(s): Wiley-ISTE
ISBN: 9781786307194

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Book description

Performance calculations can be classified into three main types: lift, thrust and slope. Firstly, since the lift profile is known and unmodifiable from the time an aircraft is designed, the mass at a given speed or the speed at a given mass must be determined. Then, once the thrust of the engines and the mass are known, the slope must be calculated. Finally, once the slope is known (for example, level flight) as well as the mass, it is necessary to deduce the thrust; this is the position of the throttle control lever that ensures balance.

The corresponding consumption must then be defined. Performance specifications for customer aircraft, such as manoeuvrability, fuel consumption, maintenance, safety and testability, have become ever more demanding with each generation of equipment. Major technical advances have been required: wing profiles, engines, materials to reduce mass, etc. This book presents a theoretical approach to flight mechanics that makes it possible to grasp the subject and links it with the empirical approach of manufacturers.

Table of contents

  1. Cover
  2. Title Page
  3. Copyright
  4. Foreword
  5. Introduction
    1. I.1. Definition of axes
  6. 1 Use of Aerodynamic Forces to Control the Trajectory of an Aircraft
    1. 1.1. Definitions
    2. 1.2. Pitch control
    3. 1.3. Yaw control
    4. 1.4. Roll control
    5. 1.5. The Mach: subsonic, transonic and supersonic speeds
  7. 2 Aerodynamic Forces and Moments and their Derivatives
    1. 2.1. Definitions
    2. 2.2. Aerodynamic forces
    3. 2.3. Aerodynamic moments
    4. 2.4. Major aerodynamic derivatives
  8. 3 Wind Tunnel
    1. 3.1. Description of wind tunnel tests
    2. 3.2. Stall
    3. 3.3. Calculation of the maximum stress applied to an aircraft wing in a wind tunnel
  9. 4 Trihedron
    1. 4.1. Writing convention
    2. 4.2. Definitions of trihedrons
    3. 4.3. Change of reference
    4. 4.4. Relation between trihedra
    5. 4.5. Relative positions of the various trihedra
  10. 5 Movement of a Solid
    1. 5.1. Rotation of a solid around a fixed point
    2. 5.2. Kinematics of a solid
    3. 5.3. Reference framework
    4. 5.4. Components of the instantaneous velocity vector of the aircraft reference (O, ie, je, ke)E with respect to the local geographic reference (O, ilgt, jlgt, klgt)LGT in the aircraft reference
    5. 5.5. Equations of accelerations and forces in the aircraft frame(O, ie, je, ke)E
    6. 5.6. Determination of load factors in the aircraft reference (O, ie, je, ke)E
    7. 5.7. Case where the speeds and accelerations are provided at a point other than G
    8. 5.8. Coordinates of the aerodynamic speed in aircraft axes
    9. 5.9. Equations of moments in the aircraft frame (O, ie, je, ke)E
    10. 5.10. Forces and moments applied to the aircraft
  11. 6 Aircraft Characteristics
    1. 6.1. Aerodynamics problems posed by aircraft
    2. 6.2. Load factor
  12. 7 Aircraft Simulation Model
    1. 7.1. Simulation model of the atmosphere
    2. 7.2. Propulsive coefficients
    3. 7.3. Mass coefficients
    4. 7.4. Aerodynamic coefficients
    5. 7.5. Equations of motion
    6. 7.6. Introduction of wind
  13. 8 Processing of Trajectography Information
    1. 8.1. Telemeasured parameters
    2. 8.2. Smoothing, first derivation and second derivation
    3. 8.3. Performance calculation
    4. 8.4. Aerodynamic route and slope
    5. 8.5. Determination of the angle Ψ
    6. 8.6. Load factors in the aerodynamic trihedron (O, Xa,Yaf, Zr)
    7. 8.7. Processing of data from the inertial unit (in the aircraft frame)
    8. 8.8. Determination of some aerodynamic parameters
    9. 8.9. Determination of load factors (nx1, ny1, nz1) in the aircraft trihedron
    10. 8.10. Determination of CY and Cz
    11. 8.11. Determination of the total incidence
    12. 8.12. Determination of the longitudinal attitude compared to the local horizontal plane
    13. 8.13. Determination of drag coefficients
    14. 8.14. Determination of the pushing force
  14. 9 Quaternion Methods
    1. 9.1. Goal
    2. 9.2. Reminder of the axis change formulas using Euler angles
    3. 9.3. Olinde-Rodrigues’s formulas: definition of quaternions
  15. Glossary
  16. List of Abbreviations
  17. References
  18. Index
  19. End User License Agreement

Product information

  • Title: Dynamics of Aircraft Flight
  • Author(s): Gilles Louis
  • Release date: July 2022
  • Publisher(s): Wiley-ISTE
  • ISBN: 9781786307194