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Table of Contents
Intro
Contents
Mechanical Modeling and Simulation for the Take-Off and Landing Performance Calculation of Low-Cost UAVs
1 Introduction
2 Concept and Approaches
2.1 Mechanical Modeling for Take-off Process
2.2 Mechanical Modeling for Landing Process
3 Results and Discussion
3.1 Parameters Setup
3.2 Results of Take-off Model
3.3 Computed Results of Landing Model
3.4 Discussion
4 Conclusions
References
Research on Dynamic Deformation Reconstruction Method of Full Size Wing Rocket Sled Based on Optical Fiber Strain
1 Introduction
2 Basic Principle of Deformation Monitoring Based on FBG
2.1 Fiber Bragg Grating Sensing Principle
2.2 Research on Subsection Fitting Deformation Monitoring Method
3 Overall Design of UAV Wing Deformation Reconstruction Experiment Using Rocket Sled
4 Test Results
4.1 Experimental Design
4.2 Analysis of Experimental Results
5 Conclusion
References
Strength Design and Research of Fuselage Opening Zone of Civil Aircraft
1 Introduction
2 Study on the Stiffness Analysis of the Open Area of the Fuselage
2.1 Computational Model
2.2 Lateral Bending Stiffness
2.3 Vertical bending stiffness
3 Conclusions
References
Characterization of the Rate-Dependent Behavior of Phenyl Silicone Rubber
1 Introduction
2 The Model
3 Experiments
3.1 Materials
3.2 Quasi-static Tests
3.3 High Rate Tests
4 Results and Discussions
4.1 Results of Tension Tests
4.2 Pure Elastic Stage of the Materials
4.3 Viscous-Hyperelastic Stage of the Materials
5 Conclusions
References
Design and Realization of Robotic Automatic Drilling &
Riveting Controlling System for Single-Sided Fasteners
1 Introduction
2 System Overview
2.1 Structure of the Robotic Automatic Drilling &
Riveting System.
2.2 Design of the Control System
3 Implementation of the Control System
3.1 Communication Network of the Control System
3.2 Control Module of the End Effector
3.3 Normal Adjustment Algorithm
3.4 Drilling &
Riveting Positioning Algorithm
4 Experiment
5 Conclusion
References
Experimental Study of Temperature on Eddy Current Sensor for Clearance Measurement
1 Introduction
2 Principle and Sensor
2.1 Principle of Eddy Current Measurement
2.2 Principle of Temperature Measurement
2.3 Sensor Design and Fabrication
3 Performance and Measurements
3.1 Calibration at Room Temperature
3.2 Effect of Temperature on Inductance and Resistance
4 Results Discussion
5 Conclusion
References
Numerical Investigation of Riblets on Rod-Airfoil Interaction Noise
1 Introduction
2 Numerical Methodology
3 Results and Discussion
4 Conclusions
References
System Level Study of Light Sport Aircraft with Conventional and Unconventional Propulsion Systems
1 Introduction
2 Background and Design Requirements
2.1 Background
2.2 Design Requirements
3 Methods
3.1 Overall Aircraft Design Methods
3.2 Electric Retrofit Design Method
4 Results
4.1 MDA Results for Conventional Propulsion Systems
4.2 Electric Retrofit Results
5 Conclusions
References
Research on Robust Scheduling Method Based on Operation Interval Relaxation
1 Introduction
2 Robust Scheduling Modeling Under Uncertain Delay
2.1 Robust Objective Function Selection
2.2 Problem Description and Modeling
3 Robust Scheduling Method Based on Operation Interval Relaxation
3.1 Method Description
3.2 Method Steps
3.3 Method Termination Conditions
4 Simulation
4.1 Experimental Design
4.2 Analysis of Results
5 Conclusions
References.
Research on Out-of-Plane Shear Mechanical Properties of Damaged Composite T-joints
1 Introduction
2 Experiment
3 Numerical Simulation Method
3.1 CZM Constitutive Model
3.2 Finite Element Model
4 Results and Discussion
4.1 Model Validation
4.2 Structural Damage Failure Analysis
5 Conclusions
References
Hybrid Optimization of Arrival and Departure Flight Schedules
1 Introduction
2 Problem Description
3 Mathematical Model
3.1 Parameter Setting and Definition
3.2 Decision Variables
3.3 Objective Function
3.4 Constraints
3.5 Recurrence Formula of Optimized Takeoff/Landing Time
3.6 Interval Parameter Setting
4 Model Solving
5 Example Verification and Analysis
References
Research and Application of Simulation Technology in Airspace Capacity Assessment
1 Introduction
2 Simulation Method of Airspace Capacity Evaluation
2.1 Simulation Process
2.2 Evaluation Index Design
3 Principle
3.1 Principle of Flight Distance Calculation
3.2 Principle of Conflict Detection
3.3 Calculation Principle of ATC's Workload
4 Example Demonstration
4.1 Simulation Model Building
4.2 Analysis of Simulation Results
5 Conclusion
References
Research on Fault Diagnosis of INS/GNSS/CNS Integrated Navigation System Based on GA-BP Neural Network
1 Introduction
2 Principle of GA-BP Neural Network Algorithm
2.1 Principle and Structure of BP Neural Network
2.2 Principle and Structure of GA-BP Neural Network
2.3 Application of GA-BP Neural Network in Fault Diagnosis for INS/GNSS/CNS Integrated Navigation
3 Simulation and Analysis of Diagnosis for INS/GNSS/CNS Integrated Navigation
4 Conclusion
References
System Maintenance Method Based on the Mean Residual Life-Importance Measure
1 Introduction
2 Essential Technologies for Reliability Optimization.
4 Conclusion
References
Assessment of Crash-Resistant Helicopter Fuel Tank with Composite Compartment Simulation for Drop Test
1 Introduction
2 Experimental Drop Test
2.1 Test Article
2.2 Test Facilities
2.3 Test Results
3 Finite Element Analysis
3.1 Fuel Bladders and Compartment
3.2 Crash Scenario
3.3 Analysis Result
4 Numerical-Test Correlation
5 Conclusions
References
Numerical Investigation and Analysis of Gas Leakage Process in High-Pressure Duct of Civil Aircraft
1 Introduction
2 Numerical Model
2.1 Research Objective
3 Numerical Model
4 Simulation Results and Discussions
4.1 Simulation Results
4.2 Discussions of Influence Factors
References
Research on Typical Joint Technology of Composite Stiffened Skin-Fuselage Frame
1 Introduction
2 Pull-Out Test of Composite T-joint
2.1 Preparation of Test Specimens
2.2 Pull-Out Testing
3 Pull-Out Failure Analysis of Composite T-joint
3.1 Delamination Failure Criterion
3.2 Adhesive Cohesive Behavior
3.3 Finite Element Simulation
3.4 Comparison of Test and Simulation Results
4 Conclusions
References
Fatigue Crack Growth Performance of Refilled Friction Stir Spot Welds in Similar and Dissimilar Aluminum Alloy Joints
1 Introduction
2 Experimental Procedures
2.1 Specimen Fabrication
2.2 FCG Test
3 Results and Discussion
3.1 Crack Growth Morphology
3.2 Crack Growth Lives
3.3 Crack Growth Rate
3.4 Fracture Surface
4 Conclusions
References
Clocking of Stators and Rotors in a Three-Stage Axial Turbine
1 Introduction
2 Description of Model and Computation Procedure
2.1 Geometry
2.2 The Scheme of Clocking Configuration
3 Clocking of a Single Row
3.1 Performance Variation
3.2 Relation of Wake Fragment and Leading Edge
3.3 Entropy Generation.
Contents
Mechanical Modeling and Simulation for the Take-Off and Landing Performance Calculation of Low-Cost UAVs
1 Introduction
2 Concept and Approaches
2.1 Mechanical Modeling for Take-off Process
2.2 Mechanical Modeling for Landing Process
3 Results and Discussion
3.1 Parameters Setup
3.2 Results of Take-off Model
3.3 Computed Results of Landing Model
3.4 Discussion
4 Conclusions
References
Research on Dynamic Deformation Reconstruction Method of Full Size Wing Rocket Sled Based on Optical Fiber Strain
1 Introduction
2 Basic Principle of Deformation Monitoring Based on FBG
2.1 Fiber Bragg Grating Sensing Principle
2.2 Research on Subsection Fitting Deformation Monitoring Method
3 Overall Design of UAV Wing Deformation Reconstruction Experiment Using Rocket Sled
4 Test Results
4.1 Experimental Design
4.2 Analysis of Experimental Results
5 Conclusion
References
Strength Design and Research of Fuselage Opening Zone of Civil Aircraft
1 Introduction
2 Study on the Stiffness Analysis of the Open Area of the Fuselage
2.1 Computational Model
2.2 Lateral Bending Stiffness
2.3 Vertical bending stiffness
3 Conclusions
References
Characterization of the Rate-Dependent Behavior of Phenyl Silicone Rubber
1 Introduction
2 The Model
3 Experiments
3.1 Materials
3.2 Quasi-static Tests
3.3 High Rate Tests
4 Results and Discussions
4.1 Results of Tension Tests
4.2 Pure Elastic Stage of the Materials
4.3 Viscous-Hyperelastic Stage of the Materials
5 Conclusions
References
Design and Realization of Robotic Automatic Drilling &
Riveting Controlling System for Single-Sided Fasteners
1 Introduction
2 System Overview
2.1 Structure of the Robotic Automatic Drilling &
Riveting System.
2.2 Design of the Control System
3 Implementation of the Control System
3.1 Communication Network of the Control System
3.2 Control Module of the End Effector
3.3 Normal Adjustment Algorithm
3.4 Drilling &
Riveting Positioning Algorithm
4 Experiment
5 Conclusion
References
Experimental Study of Temperature on Eddy Current Sensor for Clearance Measurement
1 Introduction
2 Principle and Sensor
2.1 Principle of Eddy Current Measurement
2.2 Principle of Temperature Measurement
2.3 Sensor Design and Fabrication
3 Performance and Measurements
3.1 Calibration at Room Temperature
3.2 Effect of Temperature on Inductance and Resistance
4 Results Discussion
5 Conclusion
References
Numerical Investigation of Riblets on Rod-Airfoil Interaction Noise
1 Introduction
2 Numerical Methodology
3 Results and Discussion
4 Conclusions
References
System Level Study of Light Sport Aircraft with Conventional and Unconventional Propulsion Systems
1 Introduction
2 Background and Design Requirements
2.1 Background
2.2 Design Requirements
3 Methods
3.1 Overall Aircraft Design Methods
3.2 Electric Retrofit Design Method
4 Results
4.1 MDA Results for Conventional Propulsion Systems
4.2 Electric Retrofit Results
5 Conclusions
References
Research on Robust Scheduling Method Based on Operation Interval Relaxation
1 Introduction
2 Robust Scheduling Modeling Under Uncertain Delay
2.1 Robust Objective Function Selection
2.2 Problem Description and Modeling
3 Robust Scheduling Method Based on Operation Interval Relaxation
3.1 Method Description
3.2 Method Steps
3.3 Method Termination Conditions
4 Simulation
4.1 Experimental Design
4.2 Analysis of Results
5 Conclusions
References.
Research on Out-of-Plane Shear Mechanical Properties of Damaged Composite T-joints
1 Introduction
2 Experiment
3 Numerical Simulation Method
3.1 CZM Constitutive Model
3.2 Finite Element Model
4 Results and Discussion
4.1 Model Validation
4.2 Structural Damage Failure Analysis
5 Conclusions
References
Hybrid Optimization of Arrival and Departure Flight Schedules
1 Introduction
2 Problem Description
3 Mathematical Model
3.1 Parameter Setting and Definition
3.2 Decision Variables
3.3 Objective Function
3.4 Constraints
3.5 Recurrence Formula of Optimized Takeoff/Landing Time
3.6 Interval Parameter Setting
4 Model Solving
5 Example Verification and Analysis
References
Research and Application of Simulation Technology in Airspace Capacity Assessment
1 Introduction
2 Simulation Method of Airspace Capacity Evaluation
2.1 Simulation Process
2.2 Evaluation Index Design
3 Principle
3.1 Principle of Flight Distance Calculation
3.2 Principle of Conflict Detection
3.3 Calculation Principle of ATC's Workload
4 Example Demonstration
4.1 Simulation Model Building
4.2 Analysis of Simulation Results
5 Conclusion
References
Research on Fault Diagnosis of INS/GNSS/CNS Integrated Navigation System Based on GA-BP Neural Network
1 Introduction
2 Principle of GA-BP Neural Network Algorithm
2.1 Principle and Structure of BP Neural Network
2.2 Principle and Structure of GA-BP Neural Network
2.3 Application of GA-BP Neural Network in Fault Diagnosis for INS/GNSS/CNS Integrated Navigation
3 Simulation and Analysis of Diagnosis for INS/GNSS/CNS Integrated Navigation
4 Conclusion
References
System Maintenance Method Based on the Mean Residual Life-Importance Measure
1 Introduction
2 Essential Technologies for Reliability Optimization.
4 Conclusion
References
Assessment of Crash-Resistant Helicopter Fuel Tank with Composite Compartment Simulation for Drop Test
1 Introduction
2 Experimental Drop Test
2.1 Test Article
2.2 Test Facilities
2.3 Test Results
3 Finite Element Analysis
3.1 Fuel Bladders and Compartment
3.2 Crash Scenario
3.3 Analysis Result
4 Numerical-Test Correlation
5 Conclusions
References
Numerical Investigation and Analysis of Gas Leakage Process in High-Pressure Duct of Civil Aircraft
1 Introduction
2 Numerical Model
2.1 Research Objective
3 Numerical Model
4 Simulation Results and Discussions
4.1 Simulation Results
4.2 Discussions of Influence Factors
References
Research on Typical Joint Technology of Composite Stiffened Skin-Fuselage Frame
1 Introduction
2 Pull-Out Test of Composite T-joint
2.1 Preparation of Test Specimens
2.2 Pull-Out Testing
3 Pull-Out Failure Analysis of Composite T-joint
3.1 Delamination Failure Criterion
3.2 Adhesive Cohesive Behavior
3.3 Finite Element Simulation
3.4 Comparison of Test and Simulation Results
4 Conclusions
References
Fatigue Crack Growth Performance of Refilled Friction Stir Spot Welds in Similar and Dissimilar Aluminum Alloy Joints
1 Introduction
2 Experimental Procedures
2.1 Specimen Fabrication
2.2 FCG Test
3 Results and Discussion
3.1 Crack Growth Morphology
3.2 Crack Growth Lives
3.3 Crack Growth Rate
3.4 Fracture Surface
4 Conclusions
References
Clocking of Stators and Rotors in a Three-Stage Axial Turbine
1 Introduction
2 Description of Model and Computation Procedure
2.1 Geometry
2.2 The Scheme of Clocking Configuration
3 Clocking of a Single Row
3.1 Performance Variation
3.2 Relation of Wake Fragment and Leading Edge
3.3 Entropy Generation.