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Autonomous Safety Control of Flight Vehicles

The Development of Safety Control SystemsIntroductionPhilosophical Distinctions between Active and Passive FTCSsArchitecture and Philosophy of an Active FTCSArchitecture and Philosophy of a Passive FTCSSummary of FTCSAdvantages of an Active FTCSLimitations of an Active FTCSAdvantages of a Passive FTCSLimitations of a Passive FTCSBasic Concept and Classification of Anti-Disturbance Control SystemsSafety-Critical Issues of Aerospace VehiclesSafety BoundsLimited Recovery TimeFinite-Time Stabilization/TrackingTransient ManagementComposite Faults and DisturbancesBook OutlineHybrid Fault-Tolerant Control System Design against Actuator FailuresIntroductionModeling of Actuator Faults through Control EffectivenessFunction of Actuators in an AircraftAnalysis of Faults in Hydraulic Driven Control SurfacesModeling of Faults in Multiple ActuatorsObjectives and Formulation of Hybrid FTCSDesign of the Hybrid FTCSPassive FTCS Design ProcedureReconfigurable Controller Design ProcedureSwitching Function among Different ControllersNumerical Case StudiesDescription of the AircraftPerformance Evaluation under the Passive FTCSPerformance Evaluation under Reconfigurable ControllerNonlinear Simulation of the Hybrid FTCSConclusionsNotesSafety Control System Design against Control Surface ImpairmentsIntroductionAircraft Model with Redundant Control SurfacesNonlinear Aircraft ModelActuator DynamicsLinearized Aircraft Model with Consideration of FaultsRedundancy Analysis and Problem FormulationRedundancy AnalysisProblem StatementFTCS DesignFTC Design via State FeedbackFTC via Static Output FeedbackIllustrative ExamplesExample 1 (State Feedback Case)Example 2 (Static Output Feedback Case)Sensitivity AnalysisConclusionsNotesMultiple Observers Based Anti-Disturbance Control for a Quadrotor UAVIntroductionQuadrotor Dynamics with Multiple DisturbancesQuadrotor Dynamic ModelThe Analysis of DisturbancesDesign of Multiple Observers Based Anti-Disturbance ControlControl for Translational DynamicsDO DesignESO DesignControl for Rotational DynamicsStability AnalysisPosition LoopAttitude LoopFlight Experimental ResultsFlying Arena and System ConfigurationQuadcopter Flight ScenariosTest 1Test 2Test 3Test 4AssessmentConclusionsNotesSafety Control System Design of HGV Based on Adaptive TSMCIntroductionPreliminariesMathematical Model of a HGVNonlinear HGV ModelActuator Fault ModelProblem StatementControl-Oriented ModelSafety Control System Design of a HGV against Faults and UncertaintiesMultivariable TSMCSafety Control System Based on Adaptive Multivariable TSMC TechniqueSimulation ResultsHGV Flight Condition and Simulation ScenariosSimulation Analysis of Scenario ISimulation Analysis of Scenario IIConcluding RemarksNotesSafety Control System Design of HGV Based on Fixed-Time ObserverIntroductionHGV Modeling and Problem StatementHGV DynamicsControl-Oriented Model Subject to Actuator Faults and UncertaintiesProblem StatementFixed-Time ObserverAn Overview of the Developed Observer and Accommodation ArchitectureFixed-Time ObserverFinite-Time Accommodation DesignNumerical SimulationsHGV Flight ConditionsSimulation ScenariosSimulation ResultsConclusionsNotesFault Accommodation with Consideration of Control Authority and Gyro AvailabilityIntroductionAircraft Model and Problem StatementLongitudinal Aircraft Model DescriptionAnalysis of Flight Actuator ConstraintsFailure Modes and Modeling of Flight ActuatorsFailure Modes and Modeling of Flight Sensor GyrosProblem StatementFault Accommodation with Actuator ConstraintsAn Overview of the Fault Accommodation SchemeFault Accommodation within Actuator Control AuthorityFault Accommodation with Actuator Constraints and Sensorless Angular RateAn Overview of the SMO-Based Fault Accommodation Scheme with Sensorless Angular VelocityA SMO for Estimating Angular RateIntegrated Design of SMO and Fault AccommodationSimulation StudiesSimulation Environment DescriptionSimulation ScenariosResults of Case I and AssessmentResults of Case II and AssessmentConclusionsNotesA. Appendix for Chapter 2B. Appendix for Chapter 3: Part 1C. Appendix for Chapter 3: Part 2D. Appendix for Chapter 3: Part 3E. Appendix for Chapter 4E.1. Experimental ParametersE.1.1. Physical ParametersE.1.2. Gains

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