Proceedings of the 6th China Aeronautical Science and Technology Conference: Volume III (Lecture Notes in Mechanical Engineering)

This book contains the original peer-reviewed research papers presented at the 6th China Aeronautical Science and Technology Conference held in Wuzhen, Zhejiang Province, China, in September 2023. Topics covered include but are not limited to Navigation/Guidance and Control Technology, Aircraft Design and Overall Optimisation of Key Technologies, Aviation Testing Technology, Airborne Systems/Electromechanical Technology, Structural Design, Aerodynamics and Flight Mechanics, Advanced Aviation Materials and Manufacturing Technology, Advanced Aviation Propulsion Technology, and Civil Aviation Transportation. The papers presented here share the latest findings in aviation science and technology, making the book a valuable resource for researchers, engineers and students in related fields. Contents Sensor Location Selection and Response Prediction Based on Sparse Regularization and Linear Regression 1 Introduction 2 Theoretical Background 2.1 Response Prediction Method Based on Global Transfer Function 2.2 Response Prediction Method Based on Linear Regression 2.3 Prediction of Response with Independently Interpretable Lasso 3 Numerical Simulations 3.1 Finite Element Model 3.2 Data Acquisition and Processing 3.3 Experimental Parameter Setting and Sensor Position Optimization 3.4 Results of Vibration Response Prediction 4 Conclusion References Orientation Estimation of Non-cooperative Aircraft Based on Residual Network 1 Introduction 2 Orientation Estimation Framework and Datasets 2.1 Orientation Estimation Framework 2.2 Dataset 3 Experiments 3.1 Training 3.2 Result 4 Conclusion References Integrated Parameters Sensitivity Analysis of Refueling Device and Unmanned Tanker 1 Introduction 2 Selection of Design Parameters for the Integration of Refueling Device and Unmanned Tanker 3 Integrated Parameter Sensitivity Analysis 3.1 Sensitivity Analysis Methods 3.2 Parameter Sensitivity Analysis Settings 4 Parameter Sensitivity Analysis Results 4.1 Platform Characteristic Parameter Sensitivity Analysis 4.2 Sensitivity Analysis of Refueling Performance Parameters 4.3 Analysis of the Impact of Sensitive Parameters on Overall Performance 5 Conclusion References Collaborative Task Allocation for Multi-UAV Based on Genetic Algorithm 1 Introduction 2 Multiple UAVs Cooperative Task Allocation Model 2.1 Multiple UAVs Cooperative Task Allocation Problem Description 2.2 Multiple UAVs Cooperative Task Allocation Problem Modeling 3 Improved Genetic Algorithm for Model Solving 3.1 Overall Framework 3.2 Encoding and Population Initialization 3.3 Crossover Operator 3.4 Mutation Operator 3.5 Local Search Operator 3.6 Fitness and Selection Operator 4 Experimental Results 4.1 Experimental Settings 4.2 Parameter Sensitivity Analysis 4.3 Algorithm Performance 4.4 Analysis of Representative Solution 5 Conclusion References The Influence of Radial Clearance of Slide Valve on Leakage of Solenoid Valve 1 Introduction 1.1 A Subsection Sample 2 Ring Clearance Leakage 3 Introduction 3.1 Power-on Leakage Analysis 3.2 Power-Off Leakage Analysis 4 Introduction References Effect of Surface Grain Refinement on Microstructure and Properties of K465 Superalloy 1 Introduction 2 Materials and Methods 3 Results and Discussion 3.1 Microstructures 3.2 Mechanical Properties 4 Conclusions References Research on Development of Warning Principle and Display Analysis of Large Aircraft 1 Introduction 2 Airbus A380 2.1 Priority Definition 2.2 Alarm Classification 2.3 Alarm Principle 3 Boeing B777 Aircraft 3.1 Priority Definition 3.2 Alarm Classification 3.3 Alarm Principle 3.4 Alarm Display 4 Design of Large Aircraft Warning Principle 4.1 Comparative Analysis of Foreign Aircraft Alarms 4.2 Alarm Priority Design 4.3 Alarm Principle 4.4 Alarm Display Design 4.5 Integrated Alarm Suppression Design 5 Conclusion References A Takeoff Control Strategy for Flying-Wing UAV with Embedded Control Surface Compensation 1 Problem Description 1.1 Research Object 1.2 Conventional Takeoff Control Strategy 1.3 Combination Allocation of Control Surfaces Using Direct Allocation Method 2 Takeoff Control Strategy Using Embedded Control Surface Compensation 3 Flight Experiment Verification 4 Conclusion References Numerical Simulation Study on Three Dimensional Flow and Heat Transfer Characteristics of Aeroengine Inlet Casing Anti icing System 1 Introduction 2 Numerical Simulation Methods 3 Numerical Analysis of Calculation Results 4 Conclusions References A Low Order Equivalent Matching Method for Mixing Time-Domain and Frequency-Domain Parameter Identification 1 Introduction 2 Low Order Equivalent Matching Methods 2.1 Frequency-Domain Equivalent Matching Method 2.2 Time-Domain Equivalent Matching Method 3 One-Step Least Squares Finished Algorithm 4 Equivalent Matching Method for Mixing Time-Domain and Frequency-Domain 4.1 Equivalent Matching Method for Mixing Time-Domain and Frequency-Domain 4.2 Simulation of Time-Domain and Frequency-Domain Hybrid Parameter Identification 5 Conclusion References Investigation on the Similarity Criterion Numbers of Flow and Heat Transfer Characteristics in a High-Speed Rotor-Stator Disk Cavity of Aero-Engine 1 Introduction 2 Research Object and Dimensional Analysis 2.1 Rotor-Stator Disk Cavity Configuration and Working Principle 2.2 Governing Equations and Nondimensionalizing Method 2.3 Parameters Definition 3 Methodology and Modeling 3.1 Numerical Method and Meshing 3.2 Numerical Method Verification 3.3 Operating Conditions and Dimensionless Criterion Cases 4 Results and Discussions 4.1 Comparison of the Flow Field and Temperature Field Similarity 4.2 Effects of Dimensionless Criterion Numbers on Nusselt Number 4.3 Effects of Dimensionless Criterion Numbers on Airflow Reference Temperature 4.4 Effects of Dimensionless Criterion Numbers on Dimensionless Total Heat Flux 5 Conclusions References UAV Path Planning in Three-Dimensional Complex Environments 1 Introduction 2 Q-Learning Algorithm Analysis and Improvement 2.1 Traditional Q-Learning Algorithm 2.2 Analysis of Traditional Q-Learning Algorithms 2.3 Improving the Q-Learning Algorithm 3 Simulation Experiments 3.1 Simulation Environment Design 3.2 Simulation Comparison Experiment 3.3 Simulation in Random Obstacle Environment 4 Conclusion References Design and Experimental Analysis of Propeller Variable-Pitch Mechanism for Near-Space Aircraft 1 Introduction 2 Near-Space Aircraft Propeller Variable-Pitch Mechanism Design 2.1 Structural Design 2.2 Mechanism Kinematic Analysis 3 Static Analysis and Key Components Check of Variable Distance Mechanism 3.1 Mechanism Statics Analysis 3.2 Verification of Critical Components 4 Verification of Variable-Pitch Mechanism for Near-Space Aircraft 5 Conclusion and Outlook References Diagnosis and Analysis of Interstage Flow Field in a High Load Compressor 1 Introduction 2 Test Device 3 Testing Equipment and Methods 3.1 Testing Equipment 3.2 Interstage Testing Methods 4 Test Results and Analysis 4.1 Overall Performance of the Compressor 4.2 Interstage Flow Field Analysis 5 Conclusion References Design and Implementation of Distributed Avionics Communication and Maintenance Software 1 Introduction 2 Design of Hardware Platform for Distributed Avionics Communication and Maintenance Software 3 Design and Implementation of Distributed Avionics Communication and Maintenance Software 3.1 Resource Initialization 3.2 Data Collection and Processing 4 Test and Validation 4.1 Development and Test Environment 4.2 Design Constraints for Inter-nodes Communication 4.3 Validated Results 5 Conclusion References The Research on Missing Data Imputation Method of Aero-Engine’s ACARS Based on GAN-Attention 1 Introduction 2 Data Preparing 2.1 Data Acquisition 2.2 Missing Pattern Analysis 3 Model Frameworks 3.1 Generative Adversarial Network (GAN) 3.2 Attention Mechanism 3.3 ACARS Data Imputation Model GAN-LA 4 Experimental Results and Discussion 4.1 Experiment 1: Ablation Experiments 4.2 Experiment 2: Multi-missing Mode Performance Experiments 5 Conclusion References Research on Measurement Method of Fine-Grained Traffic in Programmable Network 1 Introduction 2 Typical Flow Measurement Algorithms 3 Single Point Flow Measurement Method 3.1 Large Flow Module 3.2 Small Flow Module 3.3 The Process of Algorithm Execution 4 Network Traffic Measurement Methods 4.1 Approximation Algorithm Based on Lagrange Relaxation 4.2 Genetic Algorithm 5 Simulation Results 5.1 Results and Analysis Base on Single Point Flow Measurement Algorithm 5.2 Results and Analysis Base on Network Level Flow Measurement Algorithm 6 Conclusion References Design and Verification of Variable Camber Wing Based on Cellular Structure 1 Introduction 2 Design of Variable Camber Wing with Cellular Structure 2.1 Cellular Structure Design 2.2 Variable Camber Wing Design Based on Cellular Structure 3 Variable Camber Wing Processing and Assembly 3.1 Processing Method 3.2 Assembly Method 4 Modal and Static Analysis of Cellular Structure 4.1 Modal Analysis 4.2 Static Analysis 5 Drive System Design 6 Variable Camber Wing Testing 7 Conclusion and Outlook References Research on Hydraulic Tube Layout in Main Landing Gear Bay of Civil Aircraft 1 Introduction 2 Tube Layout of Hydraulic System in Main Landing Gear Bay of a Certain Type of Aircraft 2.1 Requirements for the Layout of Hydraulic Tube in Main Landing Gear Bay 2.2 Layout of Tubes in Main Landing Gear Bay 3 Analysis of the Influence of Tire Burst on Tube 4 Analysis of the Effect of Engine Rotor Burst on Tube 5 Maintainability Analysis 6 Conclusion References Launching Safety of Small Folding-Wing UAV Against Wind Disturbance 1 Introduction 2 Modeling and Analysis of the Folding Wings 3 Morphing Period and Uncontrolled Launch Safety 3.1 Wing Morphing Time 3.2 Launch Safety Against Wind Disturbance and Unfolding of Vertical Tails 4 Launching Safety with PID Controller 5 Conclusion References Low-Complexity Neural Back-Stepping Control with Improved Prescribed Performance for Waverider Vehicles 1 Introduction 2 Problem Statement 2.1 Waverider Vehicles Model 2.2 Model Transformation 2.3 Definition of NNs 2.4 PPC 3 Controller Design 3.1 Velocity Subsystem Controller 3.2 Altitude Subsystem Controller 3.3 Stability Analysis 4 Simulation 5 Conclusion References Investigation of Cavity Pressure and Thickness Precision in Injection Compression Molding Transparency 1 Introduction 1.1 A Subsection Sample 2 Experiments 3 Results and Discussion 3.1 Cavity Pressure in Compression Molding 3.2 Effect of Injection Velocity on Thickness and Cavity Pressure 3.3 Effect of Compression Stroke on Thickness and Cavity Pressure 3.4 Effect of Compression Velocity on Thickness and Cavity Pressure 3.5 Effect of Mold Temperature on Thickness and Cavity Pressure 4 Conclusions References The Effect of PHM Technologies on Aerocraft Operational Integrity 1 Introduction 2 The Concept and Expression of Aerocraft Operational Integrity 2.1 The Concept of Aerocraft Operational Integrity 2.2 The Expression of Aerocraft Operational Integrity 3 The Brief Introduction of PHM Technologies 4 The Improvement Mechanisms of Aerocraft Operational Integrity Based on PHM Technologies 4.1 PHM Technologies Improve the Inherent Readiness Rate of Aerocraft 4.2 PHM Technologies Improve the Inherent Health Degree of Aerocraft 4.3 PHM Technologies Improve Aerocraft Operational Integrity Degree 5 PHM Technology-Based Aerocraft Operational Integrity Enhancement Process 5.1 Aerocraft Health Status Analysis 5.2 Aerocraft Residual Life Prediction 5.3 Aerocraft Maintenance Decision 6 Summary References Research on Solution Technology of Large-Scale Joint Elements Based on Augmented Lagrange Theory 1 Introduction 2 Augmented Lagrange Theory 2.1 Lagrange Multiplier Method 2.2 Penalty Function Method 2.3 Augmented Lagrange Theory 3 Establishment of Constraint Relation of RBE2 Element 4 Engineering Application Example 5 Conclusion References Numerical Research on the Water Entry of Structures with Surface Roughness Under Impact Loading 1 Introduction 2 Numerical Method 2.1 Modeling Ideas 2.2 Numerical Model of Water-Entry 2.3 The Friction Model of Contact Line 3 Calculation Results and Analysis 3.1 Water Entry of Cylinder with Uniform Rough Surface 3.2 Water Entry of Cylinder with Asymmetric Rough Surface 4 Conclusion References Research on Structure Bonding Technology of Honeycomb Sandwich Product with Trapezoidal Cross-Section 1 Introduction 2 Product Introduction 3 Analysis of Causes for De-bonding 3.1 Structural Reason 3.2 Material Reason 3.3 Process Reason 4 Solution 4.1 Structural Optimization 4.2 Process Optimization 5 Conclusion References The Influence of Installation Angle of Different Reaction Supersonic Turbine Guide Vane on Turbine Performance 1 Introduction 2 Characteristics of Supersonic Turbine with Different Reaction 3 Numerical Model and Calculation Method 3.1 Numerical Model 3.2 Numerical Method 4 Calculation Results and Analysis 4.1 Construction of HPT with Different Reaction 4.2 Analysis of Guide Vane Installation Angle and Throat Area 4.3 Influence of Guide Vane Installation Angle on Turbine Reaction 4.4 Influence of Guide Vane Installation Angle on Mach Number 4.5 Influence of Guide Vane Installation Angle on Efficiency 5 Conclusions References Sliding Mode Control for a Fixed-Wing UAV with Disturbance via Adaptive Dynamic Programming 1 Introduction 2 Problem Statement 2.1 Model of Attitude System 2.2 Control-Oriented Model 3 Main Result 3.1 Sliding Mode Control Law 3.2 Nearly Optimal Control Law 4 Simulation 5 Simulation References Failure Analysis and Solution of Aircraft Landing Gear Door Non-command Unlocking 1 Introduction 2 System Description 2.1 Principle of Landing Gear Door System 2.2 Operating Principle and Force Analysis of Block Ring Lock 3 Failure Analysis 4 Modelling and Simulation 5 Improvement Measures and Validation 5.1 Improvement Measures 5.2 Simulation and Experimental Validation 6 Conclusion References Research on the Similarity Relationship of Wing-Body Fusion Aircraft Based on the Scaled Model 1 Introduction 2 Research Content 3 Introduction of the Research Object 3.1 Aircraft Introduction 3.2 CFD Solution 3.3 Analysis of Aerodynamic Characteristics of Aircraft Bodies 4 Similar Scaling Criterions 5 Analysis of Natural Characteristics 5.1 Trim Results 5.2 Characteristic Root Distribution 6 Control Law Design and Full-Scale Simulation Verification 7 Conclusion References Analysis of the Flight Characteristics of the Receiver Aircraft Under the Influence of the Flow Field 1 Introduction 2 General-Purpose Aerial Refueling Program 3 Flow Field Analysis of Tube Characteristics 4 Test Method and Procedure 4.1 Aircraft Body Dynamics Model 4.2 Wake Field Model 4.3 Pilot Model 4.4 Atmospheric Disturbance Model 5 Test Method and Procedure 5.1 Simulation Requirements 5.2 Simulation Results and Analysis 6 Conclusions References Research on the Construction and Implementation Method of Intelligent Factory in Aviation Manufacturing Industry for Industry 4.0 1 Introduction 2 Current Situation and Existing Problems of Aviation Manufacturing Factories 3 Intelligent Factory Construction Framework 3.1 Top Level Design and Planning of Intelligent Factories 4 Intelligent Factory Construction Plan 4.1 Device Perception Level 4.2 Business Execution Level 4.3 Management Decision Level 5 Application Case 6 Conclusions References Research on Transient Impact Response Control of Reinforced Wall Panels Based on Fractional Order PID 1 Introduction 2 FOPID Controller 3 Modeling and Active Control System of Reinforced Wall Panels 4 FOPID Controller Design 4.1 System Identification 4.2 Controller Parameter Design 4.3 Controller Frequency Domain Characteristics 5 Verification of Active Control Ground Test for Transient Excitation Response of Reinforced Wall Panels 5.1 Single Transient Excitation Response Control Experiments 5.2 Continuous Transient Excitation Response Control t Experiments 6 Conclusion References A Fault Analysis and Pattern Recognition Method for Typical Components of Complex Systems 1 Introduction 2 Energy Source Subsystem Model 2.1 Energy Conversion Mechanism Subsystem Model 2.2 Energy Output Actuator Subsystem Model 3 Failure Mode Analysis and Injection Based on Causal Analysis Modeling 3.1 Energy Source Failure Modes and Injection Methods 3.2 Peripheral Energy Conversion Output Mechanism Failure Mode and Injection Method 3.3 System Failure Modes and Injection Methods 4 Experiment and Simulation 5 Conclusion References Structure Design and Performance Analysis of Aircraft Fuel Tank Stabilizer Device 1 Introduction 2 Structural Design of the Voltage Stabilizing Device 3 Working Principle of the Voltage Stabilizing Device 4 Performance Analysis of the Voltage Regulator Device 5 Conclusion References Assembly Error Space Dimensional Chain Construction and Assembly Process Optimization Method for Segmented Wing Structure 1 Introduction 2 Analysis of the Method for Constructing the Spatial Dimension Chain of Assembly Error 3 Experimental Verification 3.1 Introduction of Segmented Wing Structure and Analysis of Existing Assembly Process Plans 3.2 Construction of Spatial Assembly Dimension Chain 3.3 Optimization of Assembly Process Scheme 4 Conclusion and Further Research Direction References A Complex Circuit Contamination Analysis Method Based on Multi-loop Transfer Function Modeling 1 Introduction 2 Complex Circuit Contamination Model Construction 2.1 Contamination Analysis Based on Transfer Function Block Diagram 2.2 Typical Metering Function Unit 2.3 Component Model of Pump and Filter 2.4 Typical Metering Functional Unit Model 3 Testing and Simulation 3.1 Contaminant Intrusion Simulation 3.2 Effect of Filter Repeat Filtration Parameters on Filtration Performance 4 Summary References Online Damage Monitoring of Joint Structures with Gaussian Mixture Model Under Load Conditions 1 Introduction 2 Monitoring Method 2.1 Principles of Guided Wave Monitoring 2.2 Principle of Gaussian Mixture Model Monitoring 2.3 The Basic Flow of GW-GMM Damage Monitoring 3 Result and Discussion 3.1 Test Setting 3.2 Experimental Results and Analysis 4 Conclusion References Numerical Simulations on the Heat Transfer and Flow Performance of Lubricating Oil in an Air/Lubricating Oil Heat Exchanger 1 Introduction 2 Numerical Parameters Setting 2.1 Geometric Model 2.2 Boundary Conditions Setting 2.3 Mesh and Numerical Solution 3 Results and Discussions 3.1 Numerical Simulation 3.2 Results Analysis 4 Conclusions References Body Freedom Flutter of Carried Flyer on a Twin-Fuselage Aircraft 1 Introduction 2 Aeroelastic Model 2.1 Twin-Fuselage Aircraft Carrying One Flyer 2.2 Aeroelastic Equations 2.3 Benchmarks 3 Flutter Characteristics of Twin-Fuselage Aircraft 3.1 Natural Modes 3.2 Flutter Characteristics 4 Conclusions References An Enhanced Error Correction Algorithm Combined with Directed Density-Based Clustering for Satellite-Based ADS-B Signals 1 Introduction 2 Related Research 2.1 The Directed Density-Based Clustering Model for the d 2.2 An Error Syndrome Matrix for Streamlining Calculations 3 Algorithm Description 4 Simulations and Results 4.1 Bit-Error Rate of MLD 4.2 Requested Error Correction Capability 4.3 The Performance of {a, b} Algorithm 5 Conclusions References A Compound Online Local Path Planning and Situation-Aware Dynamic Obstacle Avoidance System for UAV 1 Introduction 2 Methodology 2.1 Plant Growth-Inspired Online Local Path Planning Method 2.2 Situation-Aware Dynamic Obstacle Avoidance Method Based On Artificial Potential Fields 3 Experiment 4 Conclusion References Application of Correlation Analysis in the Stress Signals of the Aero-Engine Elastic Supporter 1 Introduction 2 Elastic Support Dynamic Stress Testing Techniques 3 EMD-PCA and Correlation Analysis Method 3.1 Correlation Coefficient Noise Criteria 4 The Flow of Analysis Method of Stress Signal 5 Application Example 6 Conclusion References Research on the Influence of Robot Automatic Resin Sand Spraying Process on the Quality of Composite Material Paint Layer 1 Introduction 2 Experimental Condition 2.1 Automatic Resin Sand Spraying Robot 2.2 Experimental Materials 2.3 Test Equipment 3 Experimental Content 4 Presentation of Results 4.1 Surface Electron Microscopy After Sand Blowing 4.2 Surface Electron Microscopy After Painting 4.3 Roughness 4.4 Pulling Strength 5 Conclusions References LVC Simulation Technology for Manned Helicopter UAV Cooperative Combat System 1 Introduction 2 Manned Helicopter and UAV Cooperative Combat System Pilot Training Requirements and Difficulties 2.1 Manned Helicopter and UAV Co-operative Operations Style Features 2.2 Manned Helicopters and UAVs Working Together for Trial Training Requirements 2.3 Manned Helicopters and UAVs to Work Together in Trial Training Focus 3 Key Technology for LVC Simulation of Manned Helicopter and UAV Cooperative Combat System 3.1 LVC Distributed Architecture Building Technology 3.2 Multi-tiered Distributed Network and Middleware Technology 3.3 Human-in-the-loop Simulator System Development Technology 3.4 Integrated Joint Test Technology 3.5 Collaborative Operational Test Effectiveness Evaluation Technology 4 LVC Simulation Design and Implementation of Manned Helicopter and UAV Cooperative Combat System 4.1 LVC Framework for Manned Helicopter and UAV Cooperative Operations System 4.2 Manned Helicopter and UAV Cooperative Operations System LVC Test Validation 5 Conclusion References Research on Technologies for the Flight Test of Civil Aircraft Stall Protection Control Law 1 Introduction 2 Basic Function of SPCL 2.1 Typical Format of SPCL 2.2 Basic Function of SPCL 3 Purposes and Contains 3.1 Flight Test Purposes 3.2 Flight Test Contains 4 Key Technologies and Verification 4.1 Key Technologies 4.2 Example and Verification 5 Conclusions References Modal Simulation and Experimental Study of Monorail Rocket Sled 1 Introduction 2 Model Fundamentals 2.1 Finite Element Modal Theory 2.2 Experimental Modal Theory 3 Modal Simulation of Monorail Rocket Sled Structure 3.1 Simulation Model Establishment and Meshing 3.2 Material Property Settings 3.3 Modal Simulation Results 4 Monorail Rocket Sled Ground Modal Test 4.1 Test Protocol 4.2 Test Results 5 References Monorail Rocket Sled Ground Modal Test 6 Conclusion References Fatigue Life Analysis and Evaluation of Multi-Pipe Water Brakes 1 Introduction 2 Fatigue Analysis Based on Nominal Stress Method 3 S-N curve of Water Brake Device Material 4 Empirical Equation for S-N Curves 4.1 Empirical Equation for S-N Curves 4.2 Empirical Test for S-N Curves 4.3 Test Data Processing for S-N Curves 4.4 S-N Curve Fitting of Water Brake Device Material 5 Calculation of Fatigue Life of Water Brake Device 5.1 Determination of Fatigue Danger Points 5.2 Determination of Fatigue Load Spectra 5.3 Calculation Results for Each Hazard Location 6 Conclusion References Multiphase/Multi-unit Generator Rectifier Control Strategy for Aviation High Voltage Generation System 1 Introduction 2 Multiphase Motor Control Method 2.1 Vector Space Decomposition 2.2 n-dq Coordinate Transformation 2.3 Multiphase Motor Vector Control 3 Multi-unit Motor Control Method 3.1 Multi-unit Motor Mathematical Model 3.2 Multi-unit Motor Vector Control 4 Feedforward Decoupling Current Closed -Loop Control 5 Multiphase/Multi-unit motor modeling 5.1 Multiphase/Multi-unit motor mathematical model 5.2 Multiphase/Multi-unit Motor Modeling 6 Simulation Analysis of Control for Multiphase/Multi-Unit Generator Rectifier 7 Conclusion References Aerodynamic Simulation of a Large Aspect Ratio Loitering Munition with Morphing Wings and Tails 1 Introduction 2 Conceptual Design of the Loitering Munition 3 Numerical Simulation Method 4 Results and Discussion 4.1 Low-Speed with Long-Endurance Cruise 4.2 Variable-Speed Endurance 4.3 High-Speed Maneuvering 5 Conclusions References Nonlinear Dynamic Inverse Carrier Landing Control Based on the Minimum Parameter Learning Method of RBF Network 1 Introduction 2 Carrier Landing Model 3 Dynamic Reverse Landing Control Design 3.1 Fast-State Loop Design 3.2 Slow-State Loop Design 3.3 Very Slow-State Loop Design 3.4 Design of the Trajectory Loop 4 Composite Interference Estimation Based on the RBF Minimal Parameter Method 5 Simulation 6 Conclusion References Investigation and Wind Tunnel Test on Gust Load Alleviation for a Flying Wing 1 Introduction 2 Model and Numerical Method 2.1 Flying Wing Model 2.2 Finite Element Model 2.3 Gust Generator 2.4 Active Control Law Design 2.5 Simulations 3 Results and Discussion 3.1 Model in the Wind Tunnel 3.2 Open Loop Gust Response 3.3 Closed Loop Gust Response 4 Conclusions References Onboard Electronic Equipment Ventilation System Design and Cooling Capacity Analysis 1 Introduction 2 Cooling Methods of Onboard Electronic Equipment 3 Design Conditions for Equipment Cooling System 4 Mathematical Model of Cooling System 5 Design and Analysis of Cooling System 5.1 Design of Cooling System 5.2 Analysis on Blockage of Metering Holes 6 Conclusions References Construction and Practice of Pilot Core Competence Virtual Simulation Experiment Platform 1 Introduction 2 Overview of Pilots' Core Competencies 3 Construction of Pilot Core Competency Virtual Simulation Experiment Platform 3.1 Platform Construction Ideas 3.2 Platform Frame Structure and Layout 4 Application of Flight Virtual Simulation Experiment Platform Based on Core Competence 4.1 Experimental Design of Basic Practice Module 4.2 Experimental Design of Comprehensive Practice Module 4.3 Experimental Design of Expanding Practice Module 5 Platform Application Effect and Conclusion References Trade-Off of the Clearance at the Control Plunger Section of a Solenoid Valve 1 Introduction 2 Internal Leakage Channels of the Solenoid Valve 2.1 Analysis of Power-On Leakage 2.2 Analysis of Power-Off Leakage 2.3 Test Result and Analysis 3 Calculation of the Clearance at the Control Plunger Section 3.1 Annular Gap Flow 3.2 Calculation of the Clearance 4 Discussion 5 Conclusions References Research on Automation Process Parameters of Flame Spraying Aluminum Robot 1 Introduction 2 Computation Scheme 2.1 Brief Introduction of Test Conditions 2.2 Introduction to Measurement Methods 2.3 Calculation Formula 3 Presentation of Results 3.1 The Relationship Between Spraying Angle and Resistance 3.2 The Relationship Between Track Pitch and Resistance 3.3 The Relationship Between Wire Feed Rate and Resistance 3.4 The Relationship Between Measurement Time and Resistance 4 Conclusions References Research and Verification of Dynamic Modification Algorithm for Aeroengine Exhaust Gas Temperature 1 Introduction 2 Establishment of Heat Transfer Model of the EGT Sensor 2.1 Heat Transfer Model of the Exhaust Temperature Sensor 2.2 The Time Constant of the Exhaust Temperature Sensor 3 Wind Tunnel Test Verification 3.1 Experimental Methodology 3.2 Wind Tunnel Test Results 4 Verification of EGT Dynamic Modification Algorithm on Engine 4.1 Obtaining the Sensor Time Constant Under Engine Condition 4.2 Dynamic Modification of ETC on Bench Testing 5 Dynamic Simulation and Verification of EGT 6 Conclusion References A QAR-Based Method for Reverse Thrust Logic Analysis of Civil Transport Aircraft 1 Introduction 2 Basic Theory 2.1 Wheel-Load Hopping 2.2 Usage Process of Thrust Reverser 3 The Proposed Analysis Scheme Based on QAR Data 4 Case Study 4.1 Sample Statistics of Wheel-Load Hopping 4.2 Typical Scenarios 5 Conclusions References Study on Modeling of Spread Tow Structure of Composite Material in TexGen 1 Introduction 2 Experimental Details 2.1 Find the Geometric Definition of Representative Volume Element in the Experimental Part 2.2 Create Model of Geometric Definition of Representative Volume Element 2.3 Add Additional Nodes to the Existing Model 2.4 Generate the Domain for the Model in TexGen 3 Results and Discussion 4 Conclusions References Simulation Study on the Influence of Engine Room Wake Field on the Perceived Total Pressure of Ejection Seat Pitot 1 Introduction 2 Theoretical Basis 2.1 Governing Equation 2.2 Turbulence Model 3 Technical Approach 3.1 Model Simplification and Meshing 3.2 Model Simplification and Meshing 4 Calculation Result 4.1 Model Calibration Simulation Results 4.2 Simulation Results of the Ejection Process 5 Conclusion References Robust Attitude Control of Multibody Aircraft with Preview-Based Control Compensation 1 Introduction 2 Modelling 2.1 Multibody Model 2.2 Aerodynamic Model 2.3 State-Space System and Trim Equilibrium 3 Control Design 4 Simulation Analysis 4.1 Trim Analysis 4.2 Attitude Response 4.3 Wind Turbulence Response 5 Conclusions References Air-Solid Coupling Simulation Test on a New Designed Porous Structure Intake Distortion Generator Based on ANSYS WOEKBENCH 1 Introduction 2 Modeling 3 Simulation Test Scheme and Result Analysis 4 Reinforced Methods and Validation 5 Summary of the Simulation Test Results and Distortion Plate Application Condition 6 Conclusions References Optimization Design of Preforming Geometric Parameters for Cantilever Ring with Complex Structure 1 Introduction 2 Model and Material 2.1 Part Analysis 2.2 Design of Geometric Model 2.3 Materials Selection 2.4 Establishment of FEM 3 Results and Discussion 3.1 Analysis of Preformed Uneven Deformation 3.2 Influence of Geometric Parameters on Metal Flow 4 Parameters Optimization and Verification 4.1 Establishment of Optimization Program 4.2 Result Analysis and Optimization 4.3 Verification of Optimal Parameters 4.4 Verification of Experiment 5 Conclusion References Study on the Effect of Icing Wind Tunnel Spray System Control on Liquid Water Content 1 Introduction 2 Experimental Setup 2.1 Wind Tunnel Description 2.2 The Spray System 2.3 Measurement Instrument 2.4 Calibration Procedure 3 Experimental Results and Discussions 4 Conclusion References Unmanned Aerial Vehicle Perception and Avoidance Rule Design 1 Introduction 2 Rule Design of Unmanned Aerial Vehicle Perception and Avoidance 2.1 Basic Definitions 2.2 Perception and Avoidance Rules 3 UAV Avoidance Rules 3.1 Horizontal Avoidance Rule 3.2 Vertical Avoidance Rule 4 UAV Maneuvering Avoidance Method 4.1 Left-Roll and Right-Roll Avoidance Maneuver 4.2 Climbing Slide Avoidance Maneuver 4.3 Acceleration and Deceleration Avoidance Maneuver 4.4 L1-Based Lateral Avoidance Maneuver 4.5 Based on Longitudinal Height Determination Avoidance Maneuver 5 Conclusion References Numerical Investigation of Noise Reduction Effects of Slat Cusp Sawtooth and Slat Cusp Extension 1 Introduction 2 Model and Mesh 3 Transient Flow Simulation 4 Far Field Noise Simulation 5 Conclusion References A Pressure-Bias-Modulated Aircraft Brake Control Algorithm with Runway Adaptation 1 Introduction 2 System Modeling