Linear and Nonlinear Control of Small-Scale Unmanned Helicopters [electronic resource] / by Ioannis A. Raptis, Kimon P. Valavanis.

Por: Raptis, Ioannis A [author.]Colaborador(es): Valavanis, Kimon P | [author.] | SpringerLink (Online service)Tipo de material: TextoTextoSeries Intelligent Systems Control and Automation: Science and Engineering; -45Descripción: XXVI, 198 p. online resourceISBN: 9789400700239 99789400700239Tema(s): Engineering | Engineering | CONTROL, ROBOTICS, MECHATRONICS | ENGINEERING DESIGN | ENGINEERING DESIGN | SYSTEMS THEORY | SYSTEMS THEORYClasificación CDD: 629.8 Recursos en línea: ir a documento
Contenidos:
1 Introduction -- 1.1 Background Information -- 1.2 The Mathematical Problem . -- 1.3 Controller Designs -- 1.3.1 Linear Controller Design -- 1.3.2 Nonlinear Controller Design -- 1.4 Outline of the Book -- 2 Review of Linear and Nonlinear Controller Designs -- 2.1 Linear Controller Designs -- 2.2 Nonlinear Controller Design -- 2.3 Remarks -- 3 Helicopter Basic Equations of Motion -- 3.1 Helicopter Equations of Motion -- 3.2 Position and Orientation of the Helicopter -- 3.2.1 Helicopter Position Dynamics -- 3.2.2 Helicopter Orientation Dynamics -- 3.3 Complete Helicopter Dynamics -- 3.4 Remarks -- 4 Simplified Rotor Dynamics -- 4.1 Introduction -- 4.2 Blade Motion -- 4.3 Swashplate Mechanism -- 4.4 Fundamental Rotor Aerodynamics -- 4.5 Flapping Equations of Motion -- 4.6 Rotor Tip-Path-Plane Equation -- 4.7 First Order Tip-Path-Plane Equations -- 4.8 Main Rotor Forces and Moments -- 4.9 Remarks -- 5 Frequency Domain System Identification -- 5.1 Mathematical Modeling -- 5.1.1 First Principles Modeling -- 5.1.2 System Identification Modeling -- 5.2 Frequency Domain System Identification -- 5.3 Advantages of the Frequency Domain Identification -- 5.4 Helicopter Identification Challenges -- 5.5 Frequency Response and the Coherence Function -- 5.6 The CIFER c Package -- 5.7 Time History Data and Excitation Inputs -- 5.8 Linearization of the Equations of Motion -- 5.9 Stability and Control Derivatives -- 5.10 Model Identification -- 5.10.1 Experimental Platform -- 5.10.2 Parametrized State Space Model -- 5.10.3 Identification Setup -- 5.10.4 Time Domain Validation -- 5.11 Remarks -- 6 Linear Tracking Controller Design for Small-Scale Unmanned Helicopters -- 6.1 Helicopter Linear Model -- 6.2 Linear Controller Design Outline -- 6.3 Decomposing the System -- 6.4 Velocity and Heading Tracking Controller Design -- 6.4.1 Lateral-Longitudinal Dynamics -- 6.4.2 Yaw-Heave Dynamics -- 6.4.3 Stability of the Complete System Error Dynamics -- 6.5 Position and Heading Tracking -- 6.6 PID Controller Design -- 6.7 Experimental Results -- 6.8 Remarks -- 7 Nonlinear Tracking Controller Design for Unmanned Helicopters -- 7.1 Introduction -- 7.2 Helicopter Nonlinear Model -- 7.2.1 Rigid Body Dynamics -- 7.2.2 ExternalWrench Model -- 7.2.3 Complete Rigid Body Dynamics -- 7.3 Translational Error Dynamics -- 7.4 Attitude Error Dynamics -- 7.4.1 Yaw Error Dynamics -- 7.4.2 Orientation Error Dynamics -- 7.4.3 Angular Velocity Error Dynamics -- 7.5 Stability of the Attitude Error Dynamics -- 7.6 Stability of the Translational Error Dynamics -- 7.7 Numeric Simulation Results -- 7.8 Remarks -- 8 Time Domain Parameter Estimation and Applied Discrete Nonlinear Control for Small-Scale Unmanned Helicopters -- 8.1 Introduction -- 8.2 Discrete System Dynamics -- 8.3 Discrete Backstepping Algorithm -- 8.3.1 Angular Velocity Dynamics -- 8.3.2 Translational Dynamics -- 8.3.3 Yaw Dynamics -- 8.4 Parameter Estimation Using Recursive Least Squares -- 8.5 Parametric Model -- 8.6 Experimental Results -- 8.6.1 Time History Data and Excitation Inputs -- 8.6.2 Validation -- 8.6.3 Control Design -- 8.7 Remarks -- 9 Time Domain System Identification for Small-Scale Unmanned Helicopters Using Fuzzy Models -- 9.1 Introduction -- 9.2 Takagi-Sugeno Fuzzy Models -- 9.3 Proposed Takagi-Sugeno System for Helicopters -- 9.4 Experimental Results -- 9.4.1 Tunning of the Membership Function Parameters -- 9.4.2 Validation -- 10 Comparison Studies -- 10.1 Summary of the Controller Designs -- 10.2 Experimental Results -- 10.3 First Maneuver: Forward Flight -- 10.4 Second Maneuver: Aggressive Forward Flight -- 10.5 Third Maneuver: 8 Shaped Trajectory -- 10.6 Fourth Maneuver: Pirouette Trajectory -- 10.7 Remarks -- 11 Epilogue -- 11.1 Introduction -- 11.2 Advantages and Novelties of the Designs -- 11.3 Testing and Implementation -- 11.4 Remarks -- A Fundamentals of Backstepping Control -- A.1 Integrator Backstepping -- A.2 Example of a Recursive Backstepping Design -- References.
Resumen: There has been significant interest for designing flight controllers for small-scale unmanned helicopters. Such helicopters preserve all the physical attributes of their full-scale counterparts, being at the same time more agile and dexterous. This book presents a comprehensive and well justified analysis for designing flight controllers for small-scale unmanned helicopters guarantying flight stability and tracking accuracy. The design of the flight controller is a critical and integral part for developing an autonomous helicopter platform. Helicopters are underactuated, highly nonlinear systems with significant dynamic coupling that needs to be considered and accounted for during controller design and implementation. Most reliable mathematical tools for analysis of control systems relate to modern control theory. Modern control techniques are model-based since the controller architecture depends on the dynamic representation of the system to be controlled. Therefore, the flight controller design problem is tightly connected with the helicopter modeling. This book provides a step-by-step methodology for designing, evaluating and implementing efficient flight controllers for small-scale helicopters. Design issues that are analytically covered include: An illustrative presentation of both linear and nonlinear models of ordinary differential equations representing the helicopter dynamics. A detailed presentation of the helicopter equations of motion is given for the derivation of both model types. In addition, an insightful presentation of the main rotor's mechanism, aerodynamics and dynamics is also provided. Both model types are of low complexity, physically meaningful and capable of encapsulating the dynamic behavior of a large class of small-scale helicopters. An illustrative and rigorous derivation of mathematical control algorithms based on both the linear and nonlinear representation of the helicopter dynamics. Flight controller designs guarantee that the tracking objectives of the helicopter's inertial position (or velocity) and heading are achieved. Each controller is carefully constructed by considering the small-scale helicopter's physical flight capabilities. Concepts of advanced stability analysis are used to improve the efficiency and reduce the complexity of the flight control system. Controller designs are derived in both continuous time and discrete time covering discretization issues, which emerge from the implementation of the control algorithm using microprocessors. Presentation of the most powerful, practical and efficient methods for extracting the helicopter model parameters based on input/output responses, collected by the measurement instruments. This topic is of particular importance for real-life implementation of the control algorithms. This book is suitable for students and researchers interested in the development and the mathematical derivation of flight controllers for small-scale helicopters. Background knowledge in modern control is required.
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1 Introduction -- 1.1 Background Information -- 1.2 The Mathematical Problem . -- 1.3 Controller Designs -- 1.3.1 Linear Controller Design -- 1.3.2 Nonlinear Controller Design -- 1.4 Outline of the Book -- 2 Review of Linear and Nonlinear Controller Designs -- 2.1 Linear Controller Designs -- 2.2 Nonlinear Controller Design -- 2.3 Remarks -- 3 Helicopter Basic Equations of Motion -- 3.1 Helicopter Equations of Motion -- 3.2 Position and Orientation of the Helicopter -- 3.2.1 Helicopter Position Dynamics -- 3.2.2 Helicopter Orientation Dynamics -- 3.3 Complete Helicopter Dynamics -- 3.4 Remarks -- 4 Simplified Rotor Dynamics -- 4.1 Introduction -- 4.2 Blade Motion -- 4.3 Swashplate Mechanism -- 4.4 Fundamental Rotor Aerodynamics -- 4.5 Flapping Equations of Motion -- 4.6 Rotor Tip-Path-Plane Equation -- 4.7 First Order Tip-Path-Plane Equations -- 4.8 Main Rotor Forces and Moments -- 4.9 Remarks -- 5 Frequency Domain System Identification -- 5.1 Mathematical Modeling -- 5.1.1 First Principles Modeling -- 5.1.2 System Identification Modeling -- 5.2 Frequency Domain System Identification -- 5.3 Advantages of the Frequency Domain Identification -- 5.4 Helicopter Identification Challenges -- 5.5 Frequency Response and the Coherence Function -- 5.6 The CIFER c Package -- 5.7 Time History Data and Excitation Inputs -- 5.8 Linearization of the Equations of Motion -- 5.9 Stability and Control Derivatives -- 5.10 Model Identification -- 5.10.1 Experimental Platform -- 5.10.2 Parametrized State Space Model -- 5.10.3 Identification Setup -- 5.10.4 Time Domain Validation -- 5.11 Remarks -- 6 Linear Tracking Controller Design for Small-Scale Unmanned Helicopters -- 6.1 Helicopter Linear Model -- 6.2 Linear Controller Design Outline -- 6.3 Decomposing the System -- 6.4 Velocity and Heading Tracking Controller Design -- 6.4.1 Lateral-Longitudinal Dynamics -- 6.4.2 Yaw-Heave Dynamics -- 6.4.3 Stability of the Complete System Error Dynamics -- 6.5 Position and Heading Tracking -- 6.6 PID Controller Design -- 6.7 Experimental Results -- 6.8 Remarks -- 7 Nonlinear Tracking Controller Design for Unmanned Helicopters -- 7.1 Introduction -- 7.2 Helicopter Nonlinear Model -- 7.2.1 Rigid Body Dynamics -- 7.2.2 ExternalWrench Model -- 7.2.3 Complete Rigid Body Dynamics -- 7.3 Translational Error Dynamics -- 7.4 Attitude Error Dynamics -- 7.4.1 Yaw Error Dynamics -- 7.4.2 Orientation Error Dynamics -- 7.4.3 Angular Velocity Error Dynamics -- 7.5 Stability of the Attitude Error Dynamics -- 7.6 Stability of the Translational Error Dynamics -- 7.7 Numeric Simulation Results -- 7.8 Remarks -- 8 Time Domain Parameter Estimation and Applied Discrete Nonlinear Control for Small-Scale Unmanned Helicopters -- 8.1 Introduction -- 8.2 Discrete System Dynamics -- 8.3 Discrete Backstepping Algorithm -- 8.3.1 Angular Velocity Dynamics -- 8.3.2 Translational Dynamics -- 8.3.3 Yaw Dynamics -- 8.4 Parameter Estimation Using Recursive Least Squares -- 8.5 Parametric Model -- 8.6 Experimental Results -- 8.6.1 Time History Data and Excitation Inputs -- 8.6.2 Validation -- 8.6.3 Control Design -- 8.7 Remarks -- 9 Time Domain System Identification for Small-Scale Unmanned Helicopters Using Fuzzy Models -- 9.1 Introduction -- 9.2 Takagi-Sugeno Fuzzy Models -- 9.3 Proposed Takagi-Sugeno System for Helicopters -- 9.4 Experimental Results -- 9.4.1 Tunning of the Membership Function Parameters -- 9.4.2 Validation -- 10 Comparison Studies -- 10.1 Summary of the Controller Designs -- 10.2 Experimental Results -- 10.3 First Maneuver: Forward Flight -- 10.4 Second Maneuver: Aggressive Forward Flight -- 10.5 Third Maneuver: 8 Shaped Trajectory -- 10.6 Fourth Maneuver: Pirouette Trajectory -- 10.7 Remarks -- 11 Epilogue -- 11.1 Introduction -- 11.2 Advantages and Novelties of the Designs -- 11.3 Testing and Implementation -- 11.4 Remarks -- A Fundamentals of Backstepping Control -- A.1 Integrator Backstepping -- A.2 Example of a Recursive Backstepping Design -- References.

There has been significant interest for designing flight controllers for small-scale unmanned helicopters. Such helicopters preserve all the physical attributes of their full-scale counterparts, being at the same time more agile and dexterous. This book presents a comprehensive and well justified analysis for designing flight controllers for small-scale unmanned helicopters guarantying flight stability and tracking accuracy. The design of the flight controller is a critical and integral part for developing an autonomous helicopter platform. Helicopters are underactuated, highly nonlinear systems with significant dynamic coupling that needs to be considered and accounted for during controller design and implementation. Most reliable mathematical tools for analysis of control systems relate to modern control theory. Modern control techniques are model-based since the controller architecture depends on the dynamic representation of the system to be controlled. Therefore, the flight controller design problem is tightly connected with the helicopter modeling. This book provides a step-by-step methodology for designing, evaluating and implementing efficient flight controllers for small-scale helicopters. Design issues that are analytically covered include: An illustrative presentation of both linear and nonlinear models of ordinary differential equations representing the helicopter dynamics. A detailed presentation of the helicopter equations of motion is given for the derivation of both model types. In addition, an insightful presentation of the main rotor's mechanism, aerodynamics and dynamics is also provided. Both model types are of low complexity, physically meaningful and capable of encapsulating the dynamic behavior of a large class of small-scale helicopters. An illustrative and rigorous derivation of mathematical control algorithms based on both the linear and nonlinear representation of the helicopter dynamics. Flight controller designs guarantee that the tracking objectives of the helicopter's inertial position (or velocity) and heading are achieved. Each controller is carefully constructed by considering the small-scale helicopter's physical flight capabilities. Concepts of advanced stability analysis are used to improve the efficiency and reduce the complexity of the flight control system. Controller designs are derived in both continuous time and discrete time covering discretization issues, which emerge from the implementation of the control algorithm using microprocessors. Presentation of the most powerful, practical and efficient methods for extracting the helicopter model parameters based on input/output responses, collected by the measurement instruments. This topic is of particular importance for real-life implementation of the control algorithms. This book is suitable for students and researchers interested in the development and the mathematical derivation of flight controllers for small-scale helicopters. Background knowledge in modern control is required.

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