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Advanced UAV Aerodynamics, Flight Stability and Control

Book Description

Comprehensively covers emerging aerospace technologies 

Advanced UAV aerodynamics, flight stability and control: Novel concepts, theory and applications presents emerging aerospace technologies in the rapidly growing field of unmanned aircraft engineering. Leading scientists, researchers and inventors describe the findings and innovations accomplished in current research programs and industry applications throughout the world. Topics included cover a wide range of new aerodynamics concepts and their applications for real world fixed-wing (airplanes), rotary wing (helicopter) and quad-rotor aircraft.

The book begins with two introductory chapters that address fundamental principles of aerodynamics and flight stability and form a knowledge base for the student of Aerospace Engineering. The book then covers aerodynamics of fixed wing, rotary wing and hybrid unmanned aircraft, before introducing aspects of aircraft flight stability and control.

Key features:

  • Sound technical level and inclusion of high-quality experimental and numerical data.
  • Direct application of the aerodynamic technologies and flight stability and control principles described in the book in the development of real-world novel unmanned aircraft concepts.
  • Written by world-class academics, engineers, researchers and inventors from prestigious institutions and industry.

The book provides up-to-date information in the field of Aerospace Engineering for university students and lecturers, aerodynamics researchers, aerospace engineers, aircraft designers and manufacturers.

Table of Contents

  1. Cover
  2. Title Page
  3. List of Contributors
  4. Series Preface
  5. Preface
  6. Companion Website
  7. 1 Advanced UAV Aerodynamics, Flight Stability and Control
    1. 1.1 Unmanned Aircraft Aerodynamics
    2. 1.2 UAV Flight Stability and Control
  8. 2 Aerodynamics of UAV Configurations
    1. 2.1 Introduction
    2. 2.2 Emerging Technologies in UAV Aerodynamics
    3. 2.3 Aerodynamics and Stealth Compromises
    4. 2.4 Rotor Blade Tip Aerodynamics
    5. 2.5 Flight Dynamics of Canard Aircraft
    6. 2.6 Aerodynamics of the UCAV 1303 Delta‐wing Configuration
    7. 2.7 Flow Structure Modification using Plasma Actuators
    8. 2.8 Conclusion
    9. References
  9. Part I: Novel Concepts in Unmanned Aircraft Aerodynamics
    1. 1.1 Fixed‐wing (airplanes)
      1. 3 Aerodynamic Performance Analysis of Three Different Unmanned Re‐entry Vehicles
        1. 3.1 Introduction
        2. 3.2 Vehicle Description
        3. 3.3 Flight Scenario and Flow‐regime Assessment
        4. 3.4 Rarefied and Transitional Regimes
        5. 3.5 Viscous‐interaction Regime
        6. 3.6 High‐temperature Real‐gas Regime
        7. 3.7 Laminar‐to‐turbulent Transition Assessment
        8. 3.8 Design Approach and Tools
        9. 3.9 Aerodynamic Characterization
        10. 3.10 Low‐order Methods Aerodynamic Results
        11. 3.11 CFD‐based Aerodynamic Results
        12. References
      2. 4 Nonlinear Reduced‐order Aeroservoelastic Analysis of Very Flexible Aircraft
        1. 4.1 Introduction
        2. 4.2 Large Coupled Computational Models
        3. 4.3 Coupled Reduced‐order Models
        4. 4.4 Control System Design
        5. 4.5 Conclusion
        6. 4.6 Exercises
        7. References
      3. 5 Unmanned Aircraft Wind Tunnel Testing
        1. 5.1 Introduction
        2. 5.2 The Diana UAV Project
        3. 5.3 Experimental Facility
        4. 5.4 Force and Moment Measurements
        5. 5.5 Wind Tunnel and CFD Comparisons
        6. 5.6 Flow Visualization
        7. 5.7 Summary and Conclusions
        8. Acknowledgments
        9. References
      4. 6 Chord‐dominated Ground‐effect Aerodynamics of Fixed‐wing UAVs
        1. 6.1 Introduction
        2. 6.2 Categories of Ground Effect
        3. 6.3 Chord‐dominated Static Ground Effect
        4. 6.4 Chord‐dominated Dynamic Ground Effect
        5. 6.5 Chord‐dominated Mutational Ground Effect
        6. Acknowledgments
        7. References
    2. 1.2 Rotary‐wing (helicopter)
      1. 7 Dynamics Modelling and System Identification of Small Unmanned Helicopters
        1. 7.1 Introduction
        2. 7.2 Model Development
        3. 7.3 System Identification
        4. 7.4 Basic Control Design
        5. 7.5 Conclusion
        6. Bibliography
      2. 8 Aerodynamic Derivative Calculation Using Radial Basis Function Neural Networks
        1. 8.1 Introduction
        2. 8.2 Helicopter Aerodynamic Derivatives
        3. 8.3 Radial Basis Function Neural Networks
        4. 8.4 The Delta Method
        5. 8.5 Parameter Estimation Using Simulated Data
        6. 8.6 Parameter Estimation Using Flight Data
        7. 8.7 Delta Method with Flight Data
        8. 8.8 Summary
        9. Acknowledgements
        10. References
      3. 9 Helicopter BERP Tip
        1. 9.1 Introduction
        2. 9.2 Literature Review
        3. 9.3 Summary
        4. Bibliography
      4. 10 Framework for the Optimisation of a Helicopter Rotor Blade with an Approximate BERP Tip
        1. 10.1 Introduction
        2. 10.2 Numerical Methods
        3. 10.3 Optimisation Method
        4. 10.4 Parameterisation Technique
        5. 10.5 Grid and Geometry Generation
        6. 10.6 Flight Conditions
        7. 10.7 Hover Results
        8. 10.8 Forward Flight Results
        9. 10.9 Planform Optimisation
        10. 10.10 Summary and Conclusions
        11. Bibliography
      5. 11 Active Blade Twist in Rotary UAVs using Smart Actuation
        1. 11.1 Introduction
        2. 11.2 Actuation Concepts
        3. 11.3 Integral Twist Actuation
        4. 11.4 Summary
        5. References
    3. 1.3 Hybrid Aircraft
      1. 12 Hybrid Aircraft Aerodynamics and Aerodynamic Design Considerations of Hover‐to‐Dash Convertible UAVs
        1. 12.1 Why Hover‐to‐Dash Conversion is Important
        2. 12.2 Aircraft Mission Profiles and Sizing Chart Structure
        3. 12.3 Convertible Coleopter Design, Wind Tunnel and Flight Testing
        4. 12.4 Future: Convertible QuadCopter Design and Flight Testing
        5. 12.5 The Extreme: Hover‐to‐Supersonic Dash Aircraft
        6. References
  10. Part II: Novel Concepts in Unmanned Aircraft Flight Stability and Control
    1. 2.1 Fixed‐wing (airplanes)
      1. 13 Closed‐loop Active Flow Control for UAVs
        1. 13.1 Introduction
        2. 13.2 Objectives
        3. 13.3 Actuators
        4. 13.4 Linear System
        5. 13.5 Plant Model Identification
        6. 13.6 Controller Architecture
        7. 13.7 Conclusions
        8. Acknowledgement
        9. References
      2. 14 Autonomous Gust Alleviation in UAVs
        1. 14.1 Introduction
        2. 14.2 The Composite Spar
        3. 14.3 The Energy‐harvesting and Storage Component
        4. 14.4 Reduced Energy Control Law
        5. 14.5 Gust Modelling
        6. 14.6 Experimental Validation
        7. 14.7 Performance
        8. 14.8 Other Considerations
        9. 14.9 Summary and Discussion
        10. Acknowledgement
        11. References
      3. 15 Virtual Flight Simulation using Computational Fluid Dynamics
        1. 15.1 Introduction
        2. 15.2 Aerodynamic Model for Flight Simulation
        3. 15.3 Generation of Tabular Aerodynamic Model
        4. 15.4 Time‐accurate CFD for Flight Simulations
        5. 15.5 Conclusions
        6. References
      4. 16 Flow Structure Modification Using Plasma Actuation for Enhanced UAV Flight Control
        1. 16.1 Introduction
        2. 16.2 Aerodynamic Flow Control
        3. 16.3 Plasma Actuators
        4. 16.4 Dielectric Barrier Discharge
        5. 16.5 Experimental Setup
        6. 16.6 Results and Analysis
        7. 16.7 Conclusions
        8. Acknowledgments
        9. References
      5. 17 Constrained Motion Planning and Trajectory Optimization for Unmanned Aerial Vehicles
        1. 17.1 Introduction
        2. 17.2 UAV Dynamics and Internal Constraints
        3. 17.3 Environmental Constraints
        4. 17.4 Off‐line CMP
        5. 17.5 Real‐time CMP
        6. 17.6 Variable Objective CMP
        7. 17.7 Summary and Conclusions
        8. References
      6. 18 Autonomous Space Navigation Using Nonlinear Filters with MEMS Technology
        1. 18.1 Introduction and Problem Statement
        2. 18.2 Concurrent Orbit and Attitude Determination
        3. 18.3 Concurrent Attitude and System Identification
        4. 18.4 Summary and Conclusions
        5. References
      7. 19 Adaptive Fault‐tolerant Attitude Control for Spacecraft Under Loss of Actuator Effectiveness
        1. 19.1 Introduction
        2. 19.2 Mathematical Model of Flexible Spacecraft and Problem Formulation
        3. 19.3 Adaptive Backstepping Fault‐Tolerant Controller Design
        4. 19.4 Numerical Simulations
        5. 19.5 Conclusion
        6. References
  11. 2.2 Quad‐rotor Aircraft
    1. 20 Novel Concepts in Multi‐rotor VTOL UAV Dynamics and Stability
      1. 20.1 Introduction
      2. 20.2 Multi‐rotors
      3. 20.3 Novel Quad‐rotor Concepts
      4. 20.4 Conclusions
      5. References
      6. Further reading
    2. 21 System Identification and Flight Control of an Unmanned Quadrotor
      1. 21.1 Introduction
      2. 21.2 Quadrotor System and Experimental Infrastructure Overview
      3. 21.3 System Identification Using CIFER
      4. 21.4 Flight Testing
      5. 21.5 System Identification Results and Discussion
      6. 21.6 Controller Modeling and Validation
      7. 21.7 Controller Optimization in CONDUIT
      8. 21.8 Conclusion
      9. References
  12. Index
  13. End User License Agreement