Proceedings of International Conference on Aerospace System Science and Engineering 2018 (eBook)

Professor Jing is the executive dean of SAA and IAST. He is the national recipient of “Hundred, Thousand, and Ten Thousand Talents Program”, the distinguished professor of the “Cheung Kong Scholars Program” supported by the Ministry of Education of China, the Young-and-Middle-Aged Expert with outstanding contribution to China aviation industry, and the recipient of the Science and Technology Award for Chinese Youth. He is currently a member of the National High-tech R&D Program Space and Aviation expert group (863 Program).

Contents 6
Remote Sensing Image Registration Based on the HEIV Model 8
1 Introduction 9
2 The Basic Method of Image Registration 10
3 Registration Method Based on the HEIV Model and Parameter Estimation 12
3.1 Registration Method Based on the HEIV Model 12
3.2 Method for Calculating Weight of Feature Points in Region of Interest 15
3.3 The Process Flow of Image Registration Based on the HEIV Model 15
4 Experimental Results and Analysis 17
4.1 Registration Experiment Results 17
4.2 Registration Effect Objectively Evaluation 19
5 Summary 21
References 22
Dynamics of Miura Folded Metamaterials 24
1 Introduction 24
2 Origami Modeling and Prototype 25
2.1 Boundary Conditions 27
2.2 Excitation 27
3 Results 27
3.1 Vibration Response of a Single-Degree-of-Freedom Miura Model with Different Crease Stiffness Under Simple Harmonic Force Excitation 28
3.2 Vibration Response of Multi-Degree-of-Freedom Miura Model with Different Stacking Numbers Under Simple Harmonic Force Excitation 29
3.3 Vibration Response of a Single-Degree-of-Freedom Miura Model with Different Crease Stiffness Under Simple Harmonic Displacement Excitation 30
3.4 Vibration Response of Multi-Degree-of-Freedom Miura Model Under Simple Harmonic Displacement Excitation 32
3.5 Impact Response of Multi-layer Stacked Miura Folded Metamaterials with Different Crease Stiffness 33
3.6 Impact Response of Multi-layer Stacked Miura Folded Metamaterials with Different Damping Coefficients 36
3.7 Impact Response of Multi-layer Stacked Miura Folded Metamaterials with Different Load Amplitudes 40
3.8 Impact Response of Multi-layer Stacked Miura Folded Metamaterial Under Pulse Loading 41
4 Conclusion 42
References 44
Error in Sound Source Localization of Phased Microphone Array Caused by Installation Position Deviation of Microphone Array 45
1 Introduction 46
2 Installation Deviation Type and Error Analysis Method 47
2.1 Installation Deviation Type 47
2.2 Methods of Error Analysis 48
3 Error Analysis Results 50
3.1 Stationary Sound Source 50
3.2 Rotating Sound Source 52
3.3 Effect of Grid Resolution on Positioning Error 55
4 Conclusion 55
References 57
A Survey on Object Tracking in Aerial Surveillance 58
1 Introduction 58
2 The Development of UAV Vision 60
2.1 History of UAV Vision 60
2.2 Current Research Institution 60
3 Sensors Used in Aerial Platform 61
4 Aerial Platform Based Object Tracking 61
4.1 Common Framework 62
4.2 Object Tracking Algorithms 64
4.3 Common Datasets 66
4.4 Evaluation Metrics 68
5 Future Directions 69
6 Conclusion 71
References 71
Application and Improvement of Gas Turbine Blades Film Cooling 74
1 Introduction 74
2 Research Status and Challenges 75
2.1 Trend of the Gas Temperature Before the Turbine and Development of Cooling Systems for Blades 75
2.2 Perspective of the Cooling System 77
2.3 Application of Film Cooling 78
2.4 Purpose and Objectives of the Study 92
3 Conclusion 93
References 94
Damage Tolerance Analysis for Repaired Composite Stringer Panels 97
1 Introduction 97
2 Damage Model 98
2.1 Interface Damage Model 99
2.2 Composite Laminate Damage Model 101
3 Skin-Stringer Analytical Model 102
3.1 Geometry Dimension 102
3.2 Finite Element Model 103
4 Conclusion 105
References 107
Digital Image Correlation Method Based on SURF in Airship Envelope Measurement 109
1 Introduction 110
2 Initial Value Estimation Method Based on SURF 111
2.1 The Principle of DIC 111
2.2 The Principle of SURF 113
2.3 The Implementation of DIC Based on SURF 113
3 Experimental Verification and Analysis 115
3.1 The Experiment of Simulate Speckle Image 115
3.2 The Experimental Process on Airship Envelope Specimens 118
4 Conclusions 123
References 124
Dynamic Collision Avoidance Strategy for Unmanned Aerial Vehicles Formation Flight 125
1 Introduction 125
2 Collision Avoidance Strategy 126
2.1 Velocity Obstacle 126
2.2 Acceleration Selection for Single UAV 128
2.3 Formation Keeping and Splitting 129
2.4 Collision Avoidance Within the Formation 132
3 Numerical Simulation 132
3.1 Simulation Conditions 133
3.2 Formation Keeping with Two Obstacles 133
3.3 Formation Splitting 133
3.4 Analysis of the Simulation 136
4 Conclusion 136
References 138
Detection of Acoustic Emission Signal Due to Impact Damage of Composite Materials Based EMD 140
1 Introduction 140
1.1 Background 140
1.2 EMD Technology 142
2 Impact Experiment 143
2.1 Drop-Weight Impact Test 143
2.2 Small-Mass Impact Test 143
3 Results 145
3.1 Drop-Weight Impact Test 145
3.2 Small-Mass Impact Test 152
4 Conclusion 155
References 155
Mathematical Modeling of Heat Transfer Processes in a Wall with a Regular Pseudo-pore Structure 157
1 Introduction 158
1.1 Cooling the Walls of the Combustion Chamber GTE 159
2 Pseudo-pores Structure 161
2.1 Pseudo-pores Structure Efficiency Estimation 162
2.2 Mathematical Modeling of Wall with Pseudo-pores 164
2.3 Manufacturing of GTE Combustion Chamber Wall with Pseudo-pores Structure 167
3 Conclusion 169
References 170
Automatic Power Line Detection for Low-Altitude Aircraft Safety Based on Deep Learning 171
1 Introduction 171
2 Background 172
2.1 Power Line Detection 172
2.2 Machine Learning and Deep Learning 174
3 Related Work 175
3.1 Power Line Detection Based on Traditional Image Processing Method 175
3.2 Power Line Detection Based on Machine Learning 177
4 Method 179
5 Experimental Work 179
5.1 Dataset 179
5.2 Training of the CNN Model 180
6 Results and Discussions 181
6.1 Results 181
6.2 Discussions 182
7 Conclusion 183
References 183
A Method for Enhancing Low-Pressure Ignition of n-Decane Based on Increasing Hydroxyl Free Radicals 186
1 Introduction 187
2 Materials and Apparatus 188
2.1 Chemicals 188
2.2 Characterization 189
3 Results and Discussions 191
3.1 Low-Pressure Ignition Limits of n-decane-based Hybrid Fuels 191
3.2 Measurements of the Reaction Pathway of MDEB/n-decane Oxidization 191
4 Conclusions 195
References 196
A Similarity Comparison Method of Flight Test Points 198
1 Introduction 198
1.1 Research Background 198
1.2 Content of This Article 200
2 Data Modelling of Flight Test Original Data 200
2.1 Current Status of Flight Test Workflow 200
2.2 Flight Test Data Characteristic Analysis 201
2.3 Selection of the Major Parameters and Auxiliary Parameters 201
3 Similarity Comparison Method of Flight Test Points 202
3.1 The Principle of the Method 202
3.2 Major Parameter Similarity Calculation Method 202
3.3 Auxiliary Parameter Similarity Calculation Method 205
3.4 Specific Operation Flow of Similarity Comparison Method 207
4 Application of Similarity Comparison Method 208
4.1 Application Background 208
4.2 The Method Application Process 209
5 Conclusion 211
References 211
Author Index 213