Grunn / Pham Modeling of Complex Systems

Application to Aeronautical Dynamics
1. Auflage 2013
ISBN: 978-1-118-58007-3
Verlag: John Wiley & Sons
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 114 Seiten, E-Book

In the field of aeronautical dynamics, this book offers readers adesign tool which enables them to solve the different problems thatcan occur during the planning stage of a private project. Theauthors present a system for the modeling, design and calculationof the flying qualities of airplanes and drones, with a completemathematical model by Matlab/Simulink. As such, this book may beuseful for design engineers as well as for keen airplaneamateurs.
The authors expound the various phases involved in the designprocess of an airplane, starting with the formulation of a designtool, under the form of a 0D mathematical model (dimensionless,time dependent), before moving on to explore the behavior of theairplane under certain circumstances and offering insights into theoptimization of airplane flying qualities. As validation of thismodel, they present a numerical result, drawn from data collectedon an existing plane - the Concorde.
The dimensional process is then explored and applied to a realisticdrone project. Recommendations on the development of the principalcharacteristics of the plane (i.e. mass distribution, air load,wing span) are given.
Contents
1. 0D Analytical Modeling of theAirplane Motions.
2. Design and Optimizationof an Unmanned Aerial Vehicle(UAV).
3. Organization of the Auto-Pilot.This book provides a description of the modeling, design, andcalculation of the aeronautical qualities of airplanes and drones.Divided into several parts, this book first summarizes all thenecessary theoretical developments about the equations of motionsand trajectory calculations of the machine. It then goes on todescribe practical building processes and considers pilotingmethods. The last part makes a comparison between theoreticalcalculations and measured recorded data of the real flyingmachine.
Accompanied by a complete mathematical model in MATLAB/SIMULINK

Autoren/Hrsg.

Grunn, Emanuel

Pham, Tuan Anh

Inhaltsverzeichnis

Introduction vii
Chapter 1. 0D Analytical Modeling of the Airplane Motions1
1.1. References: axis systems on use 2
1.1.1. Galilean reference: R0 2
1.1.2. Airplane reference: RB (body) also called "linkedreference" 2
1.1.3. Resultant angular velocity 6
1.2. Equations of motion of the airplane 9
1.2.1. Expression of Newton's principle 10
1.2.2. Expression of the dynamic momentum 11
1.3. Description of external forces and torques 14
1.3.1. Aerodynamic forces and torques 14
1.3.2. Sign rules 17
1.4. Description of aerodynamic coefficients 18
1.4.1. Drag coefficient: Cx 19
1.4.2. Side lift coefficient CY 19
1.4.3. Vertical lift due to attack angle: CZalpha 20
1.4.4. Lift due to pitch angular velocity: CZq 21
1.4.5. Roll coefficients (due to beta, deltal , p) 22
1.4.6. Pitch coefficients (due to alpha, deltam , q , staticcurvature) 25
1.4.7. Yaw coefficients (due to beta, deltan, r) 27
1.5. Aerodynamic data of a supersonic airliner for valuation ofthe software 32
1.6. Horizontal flight as an initial condition 33
1.7. Effect of gravitational forces 36
1.8. Calculation of the trajectory of the airplane in open space39
1.9. Validation by comparison with ONERA Concorde data 47
1.10. Definitions of aerodynamic coefficients and derivatives51
1.10.1. Aerodynamic coefficients 51
1.10.2. Total lift coefficient 51
1.10.3. Drag characteristics: (dimensionless) 55
1.10.4. Side lift coefficient: CY (dimensionless) 58
1.10.5. Roll coefficients 59
1.10.6. Pitch coefficients 62
1.10.7. Yaw coefficients 66
Chapter 2. Design and Optimization of an Unmanned AerialVehicle (UAV) 69
2.1. General design of the drone 71
2.2. Weight estimation 72
2.3. Size estimation 73
2.4. Mass and inertia evaluation 76
2.4.1. Mass evaluation 76
2.4.2. Measurement of the roll inertia (A) 77
2.4.3. Measurement of pitch inertia (B) 79
2.4.4. Measurement of yaw inertia (C) 80
2.5. Convergence toward the target 82
Chapter 3. Organization of the Auto-Pilot 91
3.1. Position of the drone in open space 93
3.2. The Dog Law 95
3.3. Flight tests 98
3.4. Altitude control system 100
3.5. Altitude measurement on an actual drone 102
Bibliography 111
Index 113