Computational and Experimental Simulations in Engineering

Name: Computational and Experimental Simulations in Engineering | Proceedings of ICCES 2023-Volume 1
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Proceedings of ICCES 2023-Volume 1

Shaofan Li(Editor)

Springer (Publisher)

1st Edition

Published on 4. December 2023

XVI, 1394 pages

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Content

Intro
Preface
Contents
1 Calibration of Railway Ballast Modeling Using Level Set Discrete Element Method
1.1 Introduction
1.2 Ballast Shape Reconstruction
1.3 Level Set Discrete Element Method
1.3.1 Surface Nodal Discretization
1.3.2 Level Set Schemes
1.3.3 Simulation Details
1.4 Results and Discussion
1.4.1 Natural Depositing Test
1.4.2 Rotating Drum Test
1.5 Conclusions
References
2 Discussion on Firefighter Action Measures for Firefighters in Urban Complex Based on PyroSim
2.1 The Establishment of Urban Complex Model
2.1.1 Model Selection
2.1.2 Fire Model Settings
2.2 Analysis of Fire Simulation Influence Factor Results
2.3 Numerical Simulation Analysis of Fire Extinguishing Action Based on Influence Factor
2.3.1 Influence of Water Gun on Four-Story Fire
2.3.2 Influence of Falling Fire Shutter on Fire on the Fourth Floor
2.4 Conclusion
References
3 Study on Decision-Making Method of Single Product Maintenance Considering Maintenance Deterioration Effect
3.1 Introduction
3.2 Reason Analysis and Description of Egraded Maintenance Effect
3.3 Maintenance Degradation Effect Model
3.3.1 Model Establishment
3.3.2 Parameters of Maintenance Effect Coefficient
3.3.3 Model Solution
3.4 Maintenance Decision Considering Maintenance Degradation Effect
3.4.1 Maintenance Decision Model
3.4.2 Optimal Solution of Maintenance Decision Model
3.4.3 Example Analysis
3.5 Conclusion
References
4 Multi-physical Analysis of Ablation Based on Peridynamics
4.1 Introduction
4.2 Multicomponent Ablation Equations
4.2.1 Element Flux Balance
4.2.2 Chemical Reaction Kinetics
4.3 Multi-physical Calculation Method Based on Peridynamics
4.3.1 Peridynamic Formulation for Heat Conduction
4.3.2 Boundary Condition
4.3.3 Multi-Physical Analysis
4.4 Numerical Example of Ablation
4.4.1 PD Computational Model
4.4.2 C/C Results and Discussions
4.4.3 C/SiC Results and Discussions
4.5 Conclusion
References
5 Coupling Analysis of Fluid-Structure Interaction in Metal Airbag Deployment Based on Corpuscular Particle Method
5.1 Introduction
5.2 Review of Corpuscular Particle Method and Control Volume Method
5.3 Numerical Examples
5.3.1 Deployment of a Fabric Airbag
5.3.2 Deployment of a Steel Airbag
5.3.3 Deployment of an Alloyed Airbag
5.4 Conclusion
References
6 Research and Application of Key Drilling Technologies in Nappe Tectonics of Xinjiang Region
6.1 Introduction
6.2 Technical Difficulties of Drilling Engineering in South Keping Area
6.2.1 Engineering Geological Characteristics of South Keping Area
6.2.2 Analysis of Technical Difficulties in Drilling Engineering
6.3 Optimized Design Technology for Nappe Tectonics Drilling Engineering
6.3.1 Prediction and Analysis of Formation Pressure Based on Well Seismic Information
6.3.2 Optimization Design of Wellbore Structure for South Keping Area
6.3.3 Design of Casing String for Gypsum Salt Formation of Nappe Structure
6.4 ROP Improving Technology for High Steep and Hard Formation
6.4.1 Deviation Control Technology in Drilling High Steep and Hard Formation
6.4.2 Development of Personalized Drill Bit for Limestone and Dolomite
6.5 Fracture Formation Leakage Prevention and Plugging While Drilling
6.5.1 Multi-element Collaborative Leak Prevention and Plugging System
6.5.2 Elastic Hole-Mesh Leak Prevention and Plugging System
6.6 Gypsum Salt Formation Safe Drilling Technology
6.7 Field Application and Analysis
6.8 Conclusions and Recommendations
References
7 Application Research on Pipe Pile Foundation of Highway Bridge in Dongting Lake Region
7.1 Introduction
7.2 Project Overview
7.2.1 Topography and Geology
7.2.2 Typical Geotechnical Parameters
7.3 Construction Process and Bearing Capacity Test
7.3.1 Tests Overview
7.3.2 Pile Sinking Test
7.3.3 Vertical Bearing Capacity Test
7.4 Bridge PHC Pipe Pile Scheme
7.4.1 Structural Form
7.4.2 Dimensional Parameters
7.5 PHC Pipe Pile Construction Technology
7.5.1 Pile Hammer Selection
7.5.2 Lifting and Stacking of Pipe Piles
7.5.3 Construction Requirements for Hammer Driving Pile
7.5.4 Hammer Retraction Standard
7.5.5 Quality Inspection
7.6 Conclusion
References
8 Full-Scale Isogeometric Topology Optimization of Porous Thin-Shell Structures
8.1 Introduction
8.2 Kirchhoff-Love Shell Model Based on IGA
8.2.1 NURBS Basis Functions
8.2.2 Kirchhoff-Love Shell Model
8.3 Full-Scale Isogeometric Topology Optimization
8.3.1 Local Volume Constraint
8.3.2 Full-Scale ITO Model
8.3.3 Sensitivity Analysis
8.4 Numerical Examples
8.4.1 A Thin Plate Structure
8.4.2 A Cylinder Shell Structure
8.5 Conclusions
References
9 Analysis of Shallow Slide in Slope Based on Phase Space Reconstruction of Soil Moisture Content
9.1 Introduction
9.2 Method
9.2.1 Phase Space Reconstruction of One-Dimensional Time Series
9.2.2 Phase Space Parameters and Chaotic Identification
9.2.3 Estimation of Phase Space Reconstruction
9.2.4 Parameters and Analysis of Slope
9.3 Research Object and Data
9.3.1 Basic Information of the Slope
9.3.2 Soil Moisture Content
9.4 Results and Discussion
9.4.1 Hysteresis Time
9.4.2 Chaotic Nature and Embedding Dimension
9.4.3 Phase Space Reconstruction and Prediction
9.4.4 Shear Strength Parameters of Soil
9.4.5 Slope Stability Analysis
9.5 Conclusion
References
10 Study on the Monitoring and Analysis Method of the Working Efficiency of Torsional Impactors
10.1 Introduction
10.2 Torque Impactor Monitoring System
10.2.1 Near-Bit Measuring Sub
10.2.2 Torque Impactor Monitoring System Components and Functions
10.3 Field Trials and Analysis of Effects
10.3.1 Field Trials
10.3.2 Analysis of the Effects of the Torque Impactor Test
10.4 Torque Impactor Working Condition Monitoring and Working Efficiency Analysis
10.4.1 Torsional Impactor Impact Frequency Monitoring
10.4.2 Influence of Bit Weight on Performance of Torque Impactor
10.4.3 Influence of Drilling Fluid Displacement on Torsional Impactor Operating Efficiency
10.4.4 Signal Characteristics of Different Strata
10.5 Conclusion
References
11 Gaussian Process Based Photometric Stereo
11.1 Introduction
11.2 Related Works
11.3 Methodology
11.3.1 Foundations
11.3.2 The Task-Specific Training Dataset
11.3.3 Gaussian Process Based Inverse Reflectance Model
11.4 Experiment Study
11.4.1 Synthetic Experiments Based on MERL Dataset
11.4.2 Real Experiments Based on DiLiGenT Dataset
11.4.3 Qualitative Experiment
11.5 Conclusions
References
12 Numerical Modelling of Electromagnetic Frequency Measurements on Frozen Soils
12.1 Introduction
12.2 Step 1: Calculation of the Effective Electrical Properties of Samples with Different Cryotextures
12.3 Step 2: Day-Surface and Logging Electromagnetic Measurements Simulation for Frozen Soils
12.4 Conclusions
References
13 Finite Element Modeling of Discontinuous Suspended Ceiling System with Boundary Constraints
13.1 Introduction
13.2 Numerical Modeling of the Suspended Ceilings System
13.2.1 Configuration of SC System
13.2.2 Specimen Tested on Shaking Table
13.2.3 Modeling Technique
13.3 Validation of Numerical Model
13.3.1 Acceleration Responses
13.3.2 Displacement Responses
13.3.3 Damage States
13.4 Conclusions
References
14 Numerical Modeling and Parametric Studies of RC Shear Wall with Replaceable Corner Components
14.1 Introduction
14.2 Description of RC Shear Wall with Replaceable Corner Components
14.3 Development and Validation of Numerical Model
14.3.1 Numerical Modeling
14.3.2 Validation of Numerical Model
14.4 Parametric Analysis and Discussions
14.4.1 Lateral Force-Top Displacement Relationship
14.4.2 Energy Dissipation Capacity
14.4.3 Residual Deformation
14.4.4 Failure Process
14.5 Conclusions
References
15 Seismic Vulnerability Analysis of Symbiosis of New-Built Structure and Historic Heritage Architecture Based on Incremental Dynamic Analysis
15.1 Introduction
15.2 Engineering Background
15.3 Ida
15.3.1 Seismic Waves
15.3.2 Finite Element Analysis
15.3.3 Damage Analysis and IDA Curves
15.4 Seismic Vulnerability Analysis
15.4.1 Parameter Fitting
15.4.2 Damage Probability Calculation
15.4.3 Seismic Vulnerability Curves
15.5 Conclusion
References
16 Optimization of Volumetric Fracturing Parameters for Deep Horizontal Wells Based on Integrated Geological-Engineering Workflow in Tuha Oilfield
16.1 Introduction
16.2 Overview of Taibei Block
16.3 Research Methodology and Process
16.4 Establishment of 3D Model of Work Area
16.4.1 Three-Dimensional Geological Model and Ground Stress Model
16.4.2 Fracture Propagation Simulation and Productivity Simulation
16.5 Optimization and Analysis of Fracturing Stimulation Parameters
16.5.1 Fracturing Parameter Optimization
16.5.2 Optimized Well Production Simulation
16.6 Conclusion
References
17 Effects of Loading Direction and Strain Rate on Mechanical Properties and Failure Modes of Teak
17.1 Introduction
17.2 Experiment
17.2.1 Experimental Materials and Specimen Preparation
17.2.2 Quasi-Static Experiments
17.2.3 Dynamic Experiments
17.3 Results and Discussion
17.3.1 Orthotropy
17.3.2 Strain Rate Effect
17.3.3 Failure Mode Analysis
17.4 Conclusions
References
18 Experimental and Finite Element Study of RC Beams Shear Strengthened with Prestressed NSM CFRP
18.1 Introduction
18.2 Experimental Program and Results
18.2.1 Specimen Parameter and Strengthening Design
18.2.2 Strengthening and Loading Steps
18.2.3 Experimental Results
18.3 Finite Element Analysis
18.3.1 Model Geometry and Material Properties
18.3.2 Simulation of Interaction Between CFRP and Concrete
18.3.3 Simulation Results
18.4 Conclusion
References
19 Construction of an Urban Road Collapse Risk Assessment Model and Its Case Study in Guangzhou
19.1 Introduction
19.2 Construction of RCRA
19.2.1 Risk Assessment Indexes
19.2.2 Weight of Assessment Indexes
19.2.3 Levels of Risk Assessment
19.3 Proposed Methodology Based on AHP-VFS
19.3.1 Assessment of ROP-UD
19.3.2 Assessment of ROP-RC
19.3.3 Assessment of RC-RC
19.3.4 Assessment of RCRA
19.4 Application and Case Study of RCRA
19.4.1 Application of RCRA-DUD
19.4.2 Application of RCRA-UUD
19.5 Conclusion
References
20 Intelligent Reentry Guidance with Dynamic No-Fly Zones Based on Deep Reinforcement Learning
20.1 Introduction
20.2 Problem Model
20.2.1 Dynamics Equations in Reentry Process
20.2.2 Constraints in Reentry Process
20.2.3 Guidance Scheme
20.3 TD3 Algorithm
20.3.1 Deep Reinforcement Learning
20.3.2 TD3 Algorithm
20.4 Intelligent Guidance Law Based on TD3
20.4.1 Framework for Intelligent Guidance
20.4.2 Markov Decision Process
20.4.3 Steps of the Algorithm
20.4.4 Structures of Neural Networks
20.5 Verification and Simulation
20.5.1 Parameters Settings
20.5.2 Training Result of Policy Network
20.5.3 Verifications on Random Trajectories
20.6 Conclusions
References
21 Efficient School Bullying Detection Based on HPO-TDN
21.1 Introduction
21.2 HPO-TDN Model
21.2.1 HPO-TDN Overall Model Architecture
21.2.2 TDN Model
21.2.3 Bayesian Hyperparametric Optimization and TPE Algorithm
21.3 Experiments
21.3.1 Environment Setup and Dataset Construction
21.3.2 Data Sampling
21.3.3 Model Analysis
21.3.4 Model Hyperparameters
21.3.5 Experimental Results
21.4 Conclusion
References
22 Long-Term Forecast of Heatdays and Heatwaves Incidents in Temperate Continental Climate Zone of China
22.1 Introduction
22.2 Area and Method
22.2.1 Data and Study Area
22.2.2 Downscaling Methods
22.2.3 Definition of HD and HW and Evaluation of Model Performance
22.3 Result
22.3.1 Distribution of HD and HW
22.3.2 Forecasting Performance of Tmax and Tmin
22.3.3 Forecasting Performance of HD
22.3.4 Forecasting Performance of HW
22.4 Discussion
22.4.1 Error Analysis
22.4.2 Forecast Performance Analysis
22.5 Conclusion
References
23 Evaluation of Regional Drought in Yunnan-Guizhou Plateau of China
23.1 Introduction
23.2 Material and Methods
23.2.1 Study Area
23.2.2 Data Source
23.2.3 Methods
23.3 Results
23.3.1 Spatial Characteristics of Annual and Seasonal Rainfall
23.3.2 Return Period of Seasonal Droughts
23.4 Discussion
23.5 Conclusion
References
24 Gradually Anchored Prestressed NSM CFRP Strengthened Beams: A Finite Element Method
24.1 Introduction
24.2 Pull-Out Experiment
24.2.1 Shear Stress-Slip Relationship
24.2.2 Finite Element Method
24.3 Simulation of Strengthened Beam
24.3.1 Gradient Prestress
24.3.2 Data Analysis
24.3.3 Effect of Gradient Length
24.4 Conclusion
References
25 Study on Free Heat Dissipation Characteristics of Rear Journal Cavity of High Pressure Compressor
25.1 Introduction
25.2 Experimental System
25.3 Numerical Simulation
25.4 Result Analysis
25.5 Summary
References
26 Windage Characteristics Investigate of Centrifugal Impeller Rear Cavity
26.1 Introduction
26.2 Experimental and Numerical Simulation Methods
26.2.1 Experiment Apparatus
26.2.2 Measurement System
26.2.3 Operation Conditions
26.2.4 CFD Settings
26.3 Results and Discussion
26.3.1 Effect of Operation Conditions
26.3.2 Effect of Geometric Parameters
26.4 Conclusions
References
27 Grain Size Distribution Analysis of Landslide Dams Caused by Dynamic Accumulation of Weathered Rock Landslides Using Discrete Element Modelling
27.1 Introduction
27.2 Numerical Models
27.2.1 Model Material
27.2.2 Particle Identification
27.2.3 Model Building
27.3 Research on Material Particle Distribution Results
27.3.1 Accumulation Morphology of Weakly Weathered Group
27.3.2 Accumulation Morphology of Strong Weathering Group
27.3.3 Study on the Grain Size Distribution
27.4 Conclusion
References
28 A Crushable Experimental Device for Simulating Soft Impact on Structures
28.1 Introduction
28.2 Soft Impact Tests Review
28.3 The Crushable Impactor
28.4 Lateral Compression Tests
28.5 Lateral Impact Tests
28.6 Conclusions
References
29 Study on Building Fire and Evacuation Based on Numerical Simulation
29.1 Introduction
29.2 Fire Simulation and Scene Setting
29.2.1 Introduction of Simulation Object
29.2.2 Fire Scenario Design
29.2.3 Simulation Result Analysis
29.3 Research on Evacuation
29.3.1 Model Building
29.3.2 Evacuation Standard
29.3.3 Simulation Result Analysis
29.4 Conclusion
References
30 Structural Integrity Analyses on the Anti-high Overload of a Solid Rocket Motor
30.1 Introduction
30.2 Methodology
30.2.1 Intermediate Strain Rate Loading
30.2.2 Constitutive Model
30.3 Computing Model
30.3.1 Calculation Model
30.4 Results and Discussion
30.5 Conclusions
References
31 Solitons, Breathers and Lumps for a Generalized (3 + 1)-Dimensional Kadomtsev-Petviashvili-Benjamin-Bona-Mahony Equation in a Fluid
31.1 Introduction
31.2 Bilinear Forms for Eq. (31.1)
31.3 Soliton Solutions for Eq. (31.1)
31.4 Breather Solutions for Eq. (31.1)
31.5 Lump Solutions for Eq. (31.1)
31.6 Conclusions
References
32 N-soliton Solutions and Nonlinear Dynamics for a Generalized Broer-Kaup System
32.1 Introduction
32.2 Bilinear Forms for System (32.2)
32.3 Soliton Solutions for System (32.2)
32.4 Conclusions
References
33 Numerical Studies on the Heat Insulation and Smoke Control Effect of Water Mist Screen Under Longitudinal Ventilation in Bifurcated Tunnel
33.1 Introduction
33.2 Numerical Simulation
33.2.1 Numerical Model
33.2.2 Simulation Conditions
33.2.3 Grid Independence Analysis
33.3 Results and Discussions
33.3.1 The Heat Insulation and Smoke Control Effect of the Main Tunnel
33.3.2 The Heat Insulation and Smoke Control Effect of the Branch Tunnel
33.4 Conclusions
References
34 A SEC Reserve Evaluation Method for Tight Gas Reservoirs
34.1 Introduction
34.2 Workflow for SEC Evaluation of Tight Gas Reservoirs
34.3 Results and Application
34.3.1 Production Decline Law and EUR Evaluation
34.3.2 SEC Reserve Evaluation of S Tight Gas Reservoir
34.3.3 Sensitivity Analysis of SEC Reserves
34.3.4 Effect of Economic Parameters on Depletion Rate
34.4 Conclusion
References
35 Advantages of Auxetic Circular Plates for Indentation and Impact Resistance: A Hypothetical Numerical Study
35.1 Introduction
35.2 Finite Element Modeling
35.2.1 Indentation Model
35.2.2 Impact Model
35.3 Results and Discussion
35.3.1 Indentation Behaviors
35.3.2 Impact Behaviors
35.4 Conclusion
References
36 Protection Mechanism of Underwater Double-Hull Coated with Polyurea and UHMW-PE Subjected to Shock Waves and Bubble Loads
36.1 Introduction
36.2 Numerical Theory
36.3 Numerical Model and Analysis
36.3.1 Numerical Model
36.3.2 Validity Validation
36.3.3 Traditional Steel Structure
36.3.4 Single Optimization
36.3.5 Composite Optimization
36.3.6 Results Discussion
36.4 Conclusions
References
37 Experimental Study of Sidewall Interference Control on Large Thickness Airfoil
37.1 Introduction
37.2 Experimental Setup
37.2.1 Wind Tunnel and Models
37.2.2 Vortex Generator Configurations
37.2.3 Fluorescent Filament Flow Visualization
37.3 Results and Discussions
37.3.1 Aerodynamic Performance
37.3.2 Pressure Distributions
37.3.3 Flow Visualization Results
37.4 Conclusion
References
38 Numerical Investigation of Sidewall Interference Control on Large Thickness Wind Turbine Airfoil
38.1 Introduction
38.2 Calculated and Experimental Setup
38.2.1 Calculated Model
38.2.2 Vortex Generators
38.2.3 Fluorescent Filament Flow Visualization
38.3 Results and Discussions
38.3.1 Calculation Verification
38.3.2 VG-Based Sidewall Interference Control
38.4 Conclusion
References
39 Study on the Influence of the Curvature Radius of the Branch on Fire Temperature Characteristics in Bifurcated Curve Tunnel
39.1 Introduction
39.2 Numerical Simulation Method
39.2.1 Physical Model
39.2.2 Boundary Conditions and Simulation Details
39.2.3 Grid Sensitivity and Validation
39.3 Results and Discussion
39.3.1 Ceiling Maximum Temperature Rise in the Bifurcated Curve Tunnel
39.3.2 Ceiling Longitudinal Temperature Distribution in the Bifurcated Curve Tunnel
39.4 Conclusions
References
40 Cooperative Localization of Ground Targets Based on Improved Adaptive Grid Interactive Multiple Model Algorithm
40.1 Introduction
40.2 AGIMM Algorithm
40.2.1 IMM Algorithm
40.2.2 AGIMM Algorithm
40.3 IEKF Algorithm
40.4 Filter Design Based on AGIMM-IEKF
40.4.1 State Equation
40.4.2 Measurement Equation
40.4.3 Filter Design
40.5 Simulation Analysis
40.5.1 Simulation Scenario and Parameter Setting
40.5.2 Simulation Result
40.6 Conclusion
References
41 A Novel Phase Demodulation Method and Simulation for Fiber-Optic Distributed Acoustic Sensor
41.1 Introduction
41.2 Working Principle
41.3 Simulation Results
41.4 Conclusion
References
42 Competitor Matching Method for Penetration Control Based on Deep Learning
42.1 Introduction
42.2 Generation of Interceptor Ballistic Library
42.2.1 Interceptor Ballistic Library Construction Method
42.2.2 Initial Guidance Stage Ballistic
42.2.3 Midcourse/Terminal Guidance Stage Ballistic
42.3 LSTM-Based Interceptor Intent Recognition Model
42.3.1 Long Short-Term Memory Neural Network
42.3.2 Track Prediction Model
42.3.3 Intent Recognition Process
42.4 Experiment
42.4.1 Intercept Trajectory Library
42.4.2 Offline Training of Trajectory Prediction Model
42.4.3 Interceptor Intent Recognition Simulation
42.5 Conclusions and Discussions
References
43 Research on Reliability of Wavefront Generator for High-Speed Railway Tunnel
43.1 Introduction
43.2 The Composition and Principle of the Wavefront Generator
43.3 Pressure Consistency in the Tunnel Cross-Section
43.3.1 Effect of Propagation Distance
43.3.2 Effect of the Initial Pressure of Chamber
43.3.3 Effect of the Operating Voltage of Valve
43.3.4 Effect of the Number of Vavle Openings
43.4 Influence of Generator Parameters on Results
43.4.1 Effect of the Initial Pressure of Chamber
43.4.2 Effect of the Operating Voltage of Valve
43.4.3 Effect of the Number of Valve Openings
43.5 Conclusion
References
44 Multi-Dimensional Business Data Fusion Modeling Based on Dynamic Bayesian Network
44.1 Introduction
44.2 Related Work
44.3 Preliminary and Problem Statement
44.3.1 Bayesian Networks
44.3.2 Dynamic Bayesian Networks
44.3.3 Problem Statement
44.4 Methodology
44.4.1 Learning Mechanism of DBN
44.4.2 SQL Query
44.5 Performance Evaluations
44.5.1 Experimental Setup
44.5.2 Query Evaluation Parameters
44.6 Conclusion
References
45 Critical Deposition Velocity of Hydrate Particles in Undulating Section of Gas Pipeline
45.1 Introduction
45.2 Forces Analysis of Hydrate Particles
45.2.1 Drive Force
45.2.2 Obstructive Force
45.2.3 Coagulation Between Hydrate Particles
45.3 Construction of Critical Velocity Model for Hydrate Particles
45.3.1 Hydrate Particle Removal Mechanism
45.3.2 Critical Velocity Equation of Hydrate Particles
45.4 Results and Discussion
45.5 Conclusion
References
46 Resolving Anonymous Nodes Based on "Watermelon Patterns" Towards Constructing Router-Level Topology in Mesh Network
46.1 Introduction
46.2 Graph-Based Induction Method
46.3 Method
46.4 Experiments
46.5 Conclusion
References
47 Prediction and Analysis of Drilling Temperature and Pressure Field in Deep Water Gas Hydrate Formation
47.1 Introduction
47.2 Model Establishment
47.2.1 Temperature Field Model
47.2.2 Continuity Model
47.2.3 Momentum Conservation Model
47.2.4 Hydrate Phase Equilibrium and Decomposition Rate Model
47.2.5 Auxiliary Equation
47.3 Project Background and Model Parameters
47.4 Results and Discussion
47.4.1 Decomposition Position of Hydrate Cuttings
47.4.2 Effect of Hydrate Cuttings Decomposition on Annulus Temperature
47.4.3 Effect of Hydrate Cuttings Decomposition on Annulus Pressure
47.4.4 Effect of Hydrate Cuttings Decomposition on Annulus Gas Content
47.5 Conclusion
References
48 Numerical Simulation of Water-Flooding Reservoirs Considering Permeability Time Variation Base on Mimetic Finite Difference Method
48.1 Introduction
48.2 Time-Varying Characterization of Permeability
48.3 Methodology and Solution
48.3.1 Mathematical Model
48.3.2 Mimetic Finite Difference Method
48.4 Applied Computational Tests
48.5 Conclusion
References
49 Wavelet Pooling in Convolutional Neural Networks for Breast Cancer Detection with Ultrasound Images
49.1 Introduction
49.2 Methodology
49.2.1 Convolutional Neural Networks (CNNs)
49.2.2 Wavelet Transformation (WT)
49.2.3 The MobileNetV2 Plus Model
49.3 Experiment Setups
49.3.1 The Model Specification
49.3.2 Data Preparation
49.3.3 Evaluation Metrics
49.4 Numerical Experiments and Results
49.5 Conclusions
References
50 Adaptive Particle Swarm Optimization Applied in Conjunction with Support Vector Machine
50.1 Introduction
50.2 Mathematical Components
50.2.1 Support Vector Machine (SVM)
50.2.2 An Adaptive Particle Swam Optimization (APSO)
50.3 Data Preparation
50.3.1 Data Source
50.3.2 Description of Attributes
50.3.3 Normalization
50.3.4 Evaluation Metrics
50.4 Experiments and Results
50.4.1 Experimental Procedure
50.4.2 Experimental Results
50.5 Conclusions
References
51 Numerical Investigation on ß = 3/2 in the Generalized Multiquadric Neural Networks for Classification Challenge
51.1 Introduction
51.2 Methodology
51.2.1 Classification with RBFNN
51.2.2 Numerical Algorithm
51.3 Data Preparation
51.3.1 Data Source
51.3.2 Description of Attributes
51.3.3 Normalization
51.3.4 Evaluation Metrics
51.4 Numerical Experiments and Results
51.4.1 Experiment 1: On the Hepatitis C Viru
51.4.2 Experiment 2: On the Breast Cancer
51.5 Conclusions
References
52 A Comparison Study on Particle Swarm Optimization (PSO) Algorithms for Data Feature Selection
52.1 Introduction
52.2 Methodology
52.2.1 PSO with no Weight: (Noted as 'PSO-V1')
52.2.2 PSO with the Ordinary Weight: (Noted as 'PSO-V2')
52.2.3 PSO with an Adaptive Weight: (Noted as 'PSO-V3')
52.2.4 PSO with an Adaptive Weight: (Noted as 'PSO-V4')
52.2.5 PSO with an Adaptive Weight: (Noted as 'PSO-V5')
52.3 Data Preparation
52.3.1 Data Source and Description
52.3.2 Normalization
52.3.3 Evaluation Metrics
52.4 Numerical Experiments and Results
52.4.1 Experiment 1: On the Arrhythmia Dataset
52.4.2 Experiment 2: On the DBWorld e-mails Dataset
52.5 Conclusions
References
53 Medical Image Segmentation Based on Clustering Feature Information Enhancement
53.1 Introduction
53.2 Related Works
53.3 Method
53.3.1 Prototype Network
53.3.2 Method Overview
53.3.3 Clustering Feature Information Enhancement
53.4 Experiment
53.4.1 Dataset and Experimental Setting
53.4.2 Comparisons with State-Of-The-Arts
53.4.3 Ablation Studies
53.5 Conclusion
References
54 Pore Scale Dynamic 3D Imaging of Water-Alternating-Gas Flooding and CO2-foam Flooding in a Double Layer Core
54.1 Introduction
54.2 Materials and Methods
54.3 Results and Discussion
54.3.1 Capillary Trapping Characteristics of CO2 and Oil
54.3.2 Quantitative Analysis
54.4 Results and Discussion
References
55 Study on Temperature Field of Deep-Water Heavy Oil Wellbore by Electric Heating
55.1 Introduction
55.2 Model for Calculating the Temperature of Offshore Heavy Oil Wellbore by Electric Heating
55.2.1 Model Assumptions
55.2.2 Development of a Wellbore Heat Transfer Model
55.2.3 Calculation of Heat Transfer Coefficient
55.3 Examples of Calculations and Analysis of Results
55.3.1 Basic Data
55.3.2 Influence of Heating Power on Wellbore Temperature Field
55.3.3 Influence of Heating Depth on Wellbore Temperature Field
55.4 Conclusion
References
56 Numerical Investigation on Flow and Heat Transfer of a Rotor-Stator Cavity with Labyrinth Seal
56.1 Introduction
56.2 Control Equations and Numerical Simulation Schemes
56.2.1 Control Equations
56.2.2 Boundary Conditions
56.2.3 Grid Division
56.3 Analysis of Simulation Results
56.3.1 Analysis of the Flow Characteristics of the Labyrinth Seal Disk Cavity
56.3.2 Analysis of Heat Transfer Characteristics of the Labyrinth Seal Disk Cavity
56.3.3 Effect of Labyrinth Seal Structure Parameter Changes on the Flow Characteristics of the Disk Cavity
56.3.4 Effect of the Labyrinth Seal Structure Parameter Changes on the Heat Transfer Characteristics of the Disk Cavity
56.4 Flow Rate Calculation Result Fitting
56.5 Conclusion
References
57 Quality Evaluation for Synchronous Grouting of Shield Tunnels Based on the GPR Detection
57.1 Introduction
57.2 Project Overview
57.3 Grouting Parameters and Quality Evaluation Method
57.3.1 Grouting Parameters
57.3.2 Loaded-To-Frame GPR Detection System
57.3.3 Monitoring for Ground Settlement
57.4 Grouting Quality Evaluation
57.4.1 Quality Evaluation Based on the Detection Results
57.4.2 Monitoring Results of Ground Settlement
57.5 Conclusions
References
58 Responses of Existing Tunnel Caused by Undercrossing Super-Large Diameter Shield Tunnel
58.1 Introduction
58.2 Project Overview
58.3 Numerical Model
58.3.1 Three-Dimensional Finite Element Model
58.3.2 Numerical Model Parameters
58.3.3 Verification of Numerical Model
58.4 Effect of Spacing Between Existing and New Tunnels
58.4.1 Numerical Model of Parametric Analysis
58.4.2 Deformation of the Existing Tunnel
58.5 Deformation Control of the Existing Tunnel Based on the GPR Detection for Backfill Grouting
58.6 Conclusion
References
59 Study on Service Performance Assessment of Large River-Crossing Shield Tunnel Based on Index Correlation
59.1 Introduction
59.2 Methodology
59.2.1 Association Rule Theory
59.2.2 ANP Theory
59.2.3 Indexes Correlation Analysis Method
59.2.4 Assessment Model Based on Correlation of Indexes
59.3 Engineering Application
59.3.1 Background
59.3.2 Index System
59.3.3 Data Processing
59.3.4 Analysis Based on Association Rule
59.3.5 Service Performance Assessment Based on ANP
59.4 Conclusion and Discussion
References
60 Research on Optimizing the Water Injection Allocation of the Combined Well Pattern of Vertical and Horizontal Wells Based on Maximum Sweep Efficiency
60.1 Introduction
60.2 Model and Solution
60.2.1 Mathematical Model
60.2.2 Pressure Distribution and Production Pressure Difference Calculation
60.2.3 Calculation of Sweep Efficiency and Design Method of Optimal Injection Allocation
60.3 Method Validation and Adaptability Analysis
60.4 Field Application
60.5 Conclusions
References
61 Research on Underwater Contact Explosion Performance of Macroscopic Negative Poisson's Ratio Grillage Structure
61.1 Introduction
61.2 Comparative Study of Underwater Blast Resistance of Macroscopic Negative Poisson's Ratio Plate Frame Structure and Reinforced Plate Structure
61.2.1 Arbitrary Eulerian Lagrangian Method and Material Model
61.2.2 Calculation of Deformation and Damage of Reinforced Plate Structure with Macroscopic Negative Poisson's Ratio Plate Frame Structure Under Underwater Contact Explosion
61.3 Analysis of the Effect of Parameter Variation on the Underwater Blast Resistance of Macroscopic Negative Poisson's Ratio Plate Frame Structures
61.3.1 Macroscopic Negative Poisson's Ratio Plate Frame Structure Parameter Variation
61.3.2 Effect of Parameter Variation on the Blast Resistance of Macroscopic Negative Poisson's Ratio Plate Frame Structures
61.4 Macroscopic Negative Poisson's Ratio Caused by Parameter Changes in the Relationship Between the Structural Mass of the Plate Frame and the Blast Resistance Performance
61.4.1 Effect of Each Parameter Variation on the Size of Plastic Zone of the Structure
61.4.2 Effect of Each Parameter Variation on the Size of Breakage of the Structure
61.5 Conclusion
References
62 Study of Effects of Grouting Defects on the Seismic Performance of Precast Concrete Shear Walls with Different Structural Characteristics
62.1 Introduction
62.2 Finite Element Model
62.2.1 Material Constitutive
62.2.2 Node Settings
62.2.3 Grouting Defect Simulation
62.2.4 Method Validation
62.3 Parametric Analysis
62.3.1 Sleeve Spacing
62.3.2 Width of Concealed Column
62.4 Conclusion
References
63 Numerical Simulation of Water Entry of Cylinder Based on Improved Smoothed Particle Hydrodynamics Method
63.1 Improved Framework for Weakly Compressible SPH
63.1.1 Euler Equations
63.1.2 Density Filtration Scheme
63.1.3 Rigid Body Motion
63.2 Verification and Numerical Results
63.2.1 Half-Density Cylinder Entry Water
63.2.2 Analysis of Fluid Field Morphology
63.2.3 Effect of Initial Velocity
63.3 Conclusion
References
64 DPFL-AES: Differential Privacy Federated Learning Based on Adam Early Stopping
64.1 Introduction
64.2 Preliminaries
64.2.1 Federated Learning
64.2.2 Threat Model
64.2.3 Differential Privacy
64.3 Our Methods
64.3.1 Adaptive Differential Privacy
64.3.2 Adaptive Early Stopping Mechanism
64.3.3 DPFL-AES and Main Results
64.4 Privacy Analysis
64.5 Experimental Results and Comparison
64.5.1 Experimental Results
64.6 Conclusion
References
65 Effect of Crosswind Angle on the Surface Pressure Distribution of Intercity Trains on Viaducts Under Wind-Driven Rain Environment
65.1 Introduction
65.2 Numerical Model of Train in Wind-Driven Rain Environment
65.2.1 Geometry of the Train and Bridge
65.2.2 Computational Domain and Boundary Conditions
65.2.3 Mesh Strategy
65.3 Results and Discussion
65.3.1 Raindrop Density Around Train
65.3.2 Pressure on Train Surface
65.4 Conclusion
References
66 Neural Adaptive Finite-Time Sliding Mode Controller for Air-Breathing Hypersonic Vehicle
66.1 Introduction
66.2 Problem Formulation and Preliminaries
66.2.1 Hypersonic Vehicle Model
66.2.2 Problem Preliminaries
66.3 Controller Design and Stability Analysis
66.4 LSTM-Based DRNN
66.4.1 LSTM-Based DRNN Description
66.4.2 LSTM Design Example
66.5 Simulation Results
66.6 Conclusion
References
67 Modeling and Investigation of Water Electrolysis in a Solid Oxide Electrolysis Cell with Composite Electrode
67.1 Introduction
67.2 Methodology
67.2.1 Physical Process and Percolation Model
67.2.2 Mathematical Model
67.3 Model Solution and Validation
67.4 Results and Discussion
67.4.1 Effect of Internal Composition of Composite Cathode
67.4.2 Effect of Particle Radius
67.5 Conclusions
References
68 Intelligent Fault Diagnosis Method of Inertial Sensors for Space Gravitational Wave Detection
68.1 Introduction
68.2 Space Inertial Sensor
68.2.1 Structural Composition
68.2.2 Principle of Pose Measurement
68.3 Proposed Method
68.3.1 Feature Matrix
68.3.2 Crvae
68.3.3 CRVAE Diagnosis
68.4 Simulation Analysis
68.5 Conclusions
References
69 Wind-Vehicle-Bridge Dynamic Response Analysis of Flexible Arch Bridge with Super-Long Span Steel Truss Beam
69.1 Introduction
69.2 Modeling of Vehicle-Bridge System
69.2.1 Dynamic Model of Bridge
69.2.2 Dynamic Model of Train
69.2.3 Train-Bridge Rigid-Flexible Coupling
69.3 Wind Loads of Vehicle and Bridge
69.4 Dynamic Response Analysis of Wind-Vehicle-Bridge System
69.4.1 Dynamic Response Analysis of Axle Under Windless Condition
69.4.2 Dynamic Response Analysis of Vehicle-Bridge Under Wind Field Conditions
69.5 Conclusions
References
70 Numerical Analysis on Casing Deformation During Hydraulic Fracturing of Deep and Tight Volcanic Reservoir
70.1 Introduction
70.2 Problems of Typical Reservoir
70.3 Finite Element Models
70.4 Results
70.4.1 Good Cement Quality
70.4.2 Poor Cement Quality
70.5 Discussion and Conclusions
Appendix
References
71 Experimental Study of Hydraulic Fracturing in Unconsolidated Sandstone
71.1 Introduction
71.2 Experimental Equipment and Procedures
71.2.1 Experimental Equipment
71.2.2 Specimen Preparation
71.2.3 Experimental Design
71.3 Results and Discussion
71.3.1 Effects of Permeability of Samples
71.3.2 Effects of Polymers Concentration in Fracturing Fluid
71.3.3 Effects of Injection Rate
71.3.4 Effects of Damage
71.3.5 Effects of Mud Layers
71.4 Conclusions
References
72 Experimental Analysis of Tubed Vortex Reducers in a Rotating Cavity with Radial Inflow
72.1 Introduction
72.2 Experimental Apparatus and Methods
72.2.1 Test Rig
72.2.2 Test Section and Tubed Vortex Reducer
72.2.3 Data Acquisition System
72.3 Results and Discussion
72.3.1 Characteristic of Pressure Loss on Cavity with TVR
72.3.2 Comparison of Performance of Different Configuration
72.3.3 Non-dimensional Flow Resistance Reduction Performance
72.4 Conclusion
References
73 Research on Anti-explosion Performance of Polyurea Elastomer Based on RKDG-FEM Coupling Algorithm
73.1 Introduction
73.2 Numerical Theory
73.3 Numerical Model
73.3.1 Equation of State
73.3.2 Material Model
73.3.3 Finite Element Model
73.4 Discussion and Analysis of Results
73.4.1 Shock Wave Characteristics
73.4.2 Structural Response Analysis
73.5 Conclusion
References
74 A Novel Transient Pressure Analysis Model for Horizontal Well in Gas Reservoir with Finite Water Bodies
74.1 Introduction
74.2 Model Building
74.2.1 Physical Model
74.2.2 Mathematical Modeling and Solving
74.3 Typical Pressure Curves
74.3.1 Model Verification
74.3.2 Analysis of Typical Curve and Impact of Water-Body Multiplier
74.4 Conclusion
Appendix
References
75 Research on Microservice Identification Technology Based on API Correlation
75.1 Introduction
75.2 Related Work
75.3 Methods
75.3.1 Problem Definition
75.3.2 Calculating the Semantic Similarity of API Topics
75.3.3 Calculating the Similarity of API Response Messages
75.3.4 Identifying Candidate Microservices in API Similarity Graphs
75.3.5 Construction of the API Similarity Graph
75.3.6 Microservice Scoring and Identification
75.4 Experimental Results
75.4.1 Comparison with Existing Methods
75.4.2 Hyperparameter Studies
75.5 Conclusion
References
76 Simulation and Evaluation of Passenger Flow Control in Urban Rail Transit Stations Based on System Dynamics
76.1 Introduction
76.2 SD Model of Passenger Flow in Urban Rail Transit Stations
76.2.1 Overview of SD Modeling
76.2.2 Research Framework
76.2.3 Urban Rail Transit Station Passenger Flow Organization and Control
76.2.4 SD Model for Passenger Flow Regulation in Urban Rail Transit Stations
76.3 Case Study
76.3.1 SD Model Data Input
76.3.2 Base Scheme Operation
76.3.3 Single Passenger Flow Regulation and Its Sensitivity Analysis
76.3.4 Control Measures Scheme Analysis and Selection
76.4 Conclusion
References
77 Calculation Method for Plastic Dynamic Response of Hull Grillage in Underwater Explosion
77.1 Introduction
77.2 Establishment of Dynamic Mechanical Model
77.3 Verification of Effectiveness of the Method
77.4 Conclusion
References
78 Study on the Dynamic Response of Stiffened Plates Under Underwater Explosion
78.1 Introduction
78.2 The CEL Method
78.3 Numerical Validation
78.4 Calculation Model and Material Definition
78.5 Results and Discussions
78.5.1 The Response of the Well Stiffened Plate
78.5.2 Damage Characteristics of Different Plates
78.5.3 Damage Characteristics of Stiffened Plates at Different Explosion Distances
78.6 Conclusion
References
79 An Efficient Retarded Acid System for Deep and High Temperature Carbonate Reservoirs
79.1 Introduction
79.2 Material and Methods
79.2.1 Experiment Preparation
79.2.2 Main Experimental Apparatus
79.2.3 Experimental Method
79.3 Result and Discussion
79.3.1 Acid Rheology Test Result
79.3.2 Acid Rock Reaction Kinetics Test Result
79.3.3 Acid Dissolution Rate and Corrosion Inhibition Performance Test Result
79.3.4 Conductivity Test and Flowback Rate Test Result
79.4 Conclusion
References
80 UAV-Satellite Cross-View Image Matching Based on Siamese Network
80.1 Introduction
80.2 Related Work
80.2.1 Cross-View Geo-Localization
80.2.2 Feature Extraction
80.3 Image Matching Based on Siamese Neural Network
80.3.1 Structure of Feature Extraction Network
80.3.2 Loss Function
80.4 Experiment
80.4.1 Dataset
80.4.2 Process and Results
80.5 Conclusion
References
81 Study on Attenuation Effect of Shock Wave Using Water Curtain
81.1 Introduction
81.2 Experimental Setup
81.2.1 The Experimental Apparatus
81.2.2 Test Cases
81.3 Pressure Similarity Analysis of Shock Wave in Shock Tube and Blast Wave
81.3.1 Shock Wave Characteristics in Tube
81.3.2 Nozzle Shock Wave Characteristics
81.4 Results and Discussion
81.4.1 The Interaction Between Shock Wave and Water Curtain
81.4.2 Attenuation Effect of Water Curtain on Shock Wave
81.5 Conclusion
References
82 Study on Evolution of Droplet Breakup Under Shock Wave
82.1 Introduction
82.2 Shock Tube Theory
82.3 Numerical Simulation
82.3.1 Simulation Model
82.3.2 Governing Equation
82.3.3 Simulation Result
82.4 Experiment Research
82.4.1 Experimental Setup
82.4.2 Results and Discussion
82.5 Viscosity and Density of Glycerol Aqueous Solution
82.6 Shock Wave Mach Number Measurement Results
82.7 The Morphology of the Droplet
82.8 Droplet Deformation and Breakup Time
82.9 Conclusion
References
83 Online Fast Sliding Mode Controller for Air-Breathing Hypersonic Vehicle with Inlet Constraint
83.1 Introduction
83.2 Mathematical Model of AHV
83.3 Online Fast Terminal Sliding Mode Controller Design
83.3.1 The Controller of Velocity Subsystem and Height Subsystem
83.3.2 Design of OIDS
83.4 Simulation
83.4.1 Simulations for AHV Using Online Fast Sliding Model Control Algorithm
83.4.2 Simulations for AHV Using Online Index Database System
83.5 Conclusion
References
84 Bidirectional Weighted Co-Association-Based Clustering Ensemble Algorithm for High-Speed Train Delay Prediction
84.1 Introduction
84.2 Related Work
84.3 Models
84.3.1 Inter-Cluster Weighting
84.3.2 Reliability Weighting
84.3.3 Co-Association Matrix Based on Bidirectional Weighting
84.3.4 CE-BWC Algorithm
84.4 Experiments and Results
84.4.1 Experimental Setting
84.4.2 Experimental Results and Analysis
84.4.3 Parameter Sensitivity Analysis
84.5 Conclusion
References
85 Study on Damage Identification of Reinforced Concrete Members Based on BP Neural Network
85.1 Introduction
85.2 The Damage Index and Safety State Assessment of Concrete Structures
85.2.1 Damage Index and Damage Parameters
85.2.2 Damage Models of Concrete Structures
85.2.3 The Assessment of Safety State for Concrete Structure
85.3 Damage Identification of RC Structures Based on BP Neural Network
85.3.1 The Construction of BP Neural Network
85.3.2 The Calculation of Input and Output Vectors in BP Neural Network
85.3.3 Training and Validation
85.4 Experimental Verification
85.4.1 Test-Piece Parameter
85.4.2 Loading Device and Loading System
85.4.3 Measuring Device and Measuring Method
85.4.4 Test Results and Analysis
85.5 Conclusion
References
86 Effect of the Rotational Central Shaft on the Flow and Heat Transfer of Rotating Cavity with Axial Throughflow
86.1 Introduction
86.2 Calculation Model and Numerical Method
86.2.1 Geometric Model and Mesh Generation
86.2.2 Solver and Numerical Method
86.3 Results and Discussion
86.3.1 Flow Field
86.3.2 Throughflow Pressure Drop and Windage Torque
86.3.3 Heat Transfer
86.4 Conclusion
References
87 Seismic Response Analysis of Full Containment LNG Storage Tank Using Coupled Eulerian-Lagrangian and Smoothed Particle Hydrodynamics Methods
87.1 Introduction
87.2 Finite Element Method
87.2.1 Tank model
87.2.2 Coupled Eulerian-Lagrangian Approach
87.2.3 Smoothed Particle Hydrodynamics Approach
87.2.4 Tank Model Grid Independence Test
87.3 Verification of Finite Element Method
87.4 Numerical Study Results and Analysis
87.5 Conclusions
References
88 A Blockchain-Based Platform of Housing Provident Fund Cross-Regional Financing and Supervision
88.1 Introduction
88.2 System Design Overview
88.2.1 Business Process
88.3 System Architecture
88.4 System Function
88.4.1 User Management
88.4.2 Order Management
88.4.3 Fund Pool Management
88.4.4 Supervision Function
88.4.5 Platform Functions
88.4.6 Certificate Storage Service Function
88.5 Highlights and Innovation
88.6 Conclusion and Future Work
References
89 Prospects of Solid Fluidization for Natural Gas Hydrate Development in South China Sea via SWOT Analysis
89.1 Strength of Solid Fluidization
89.2 Weakness of Solid Fluidization
89.3 Opportunity of Solid Fluidization
89.4 Threaten of Solid Fluidization
89.5 Conclusions
References
90 Fire Engineering Analysis for Complex Geometry Building Based on BIM Integrated Simulation Platform
90.1 Introduction
90.2 Application of BIM in Project Approval and Management
90.2.1 Policy Requirements
90.2.2 Fire Engineering Design Approval
90.3 Fire Safety Analysis
90.3.1 Design Challenges
90.3.2 Fire Engineering Design
90.3.3 Model Transfer
90.3.4 Simulation and Analysis
90.4 BIM Model Based Visualization Platform
90.4.1 Platform Framework
90.4.2 Display of Building Shape and Analysis Results
90.5 Conclusions
References
91 An Index System Construction Method Based on CCSS Data Analysis
91.1 Introduction
91.2 Research
91.2.1 Theoretical Basis
91.2.2 Data Source of CCSS
91.3 Construction of Index System
91.3.1 Preliminary Cutting of CCSS and Variable Hypotheses
91.3.2 CFA of Preliminary Hypotheses
91.3.3 Variable Parceling
91.4 Results
91.4.1 Reliability and Convergent Validity Analyses
91.4.2 Discriminant Validity Analyses
91.5 Conclusion
References
92 Twitter User Geolocation Based on GCN
92.1 Introduction
92.2 Related Work
92.3 Proposed Method
92.3.1 Data Pre-processing
92.3.2 User Location Segmentation
92.3.3 Construction of Heterogeneous Graph
92.3.4 Model
92.4 Experiment
92.4.1 Datasets
92.4.2 Evaluation Metrics
92.4.3 Baseline Model
92.4.4 Results
92.5 Conclusion
92.6 Funding Statement:
References
93 Research on Aerial Target Recognition Method Based on PSO-BP Neural Network
93.1 Introduction
93.1.1 Basic Principle and Algorithm Model
93.1.2 Target Recognition Model Based on BP Neural Network
93.1.3 Principle of Particle Swarm Optimization Algorithm
93.1.4 PSO-BP Neural Network Model
93.1.5 Simulation Example Analysis
93.1.6 Target Classification and Recognition Model Construction and Parameter Setting
93.1.7 Result Analysis
93.2 Conclusion
References
94 Research Progress on CO2 Corrosion Resistance of Cement in CCUS Environment
94.1 Introduction
94.2 Influencing Factors of Cement Corrosion
94.3 Methods of Corrosion Control
94.3.1 Methods for Corrosion Control of Portland Modified Cement
94.3.2 Special Cement Anti-Corrosion Method
94.4 Conclusion
References
95 Copula-Based Multi-structure Damage Co-diagnosis and Prognosis for the Fleet Maintenance Digital Twin
95.1 Introduction
95.2 Copula-Based Multi-structure Damage Co-diagnosis and Prognosis
95.2.1 Traditional Individual-Oriented Particle Filter for Fatigue Crack Growth
95.2.2 Copula Function to Model the Joint Distribution
95.2.3 Complete Procedure for the Copula-Based Joint Diagnosis and Prognosis
95.3 Validation on a Hypothesized Fleet
95.4 Conclusion
References
96 A Gripper Force Sensing Device for Collaborative Manipulator Based on Force Sensitive Resistor
96.1 Introduction
96.2 Device Design
96.2.1 Mechanical Mechanism Design
96.2.2 Electrical Design
96.3 Force Sensing Data Processing
96.3.1 Data Pre-processing
96.3.2 Data Fitting-Logarithmic Fitting
96.3.3 Data Fitting-Polynomial Fitting
96.3.4 Fitting Results
96.4 Analysis of Experimental Results
96.5 Conclusion
References
97 Study on the Optimization of EUR Evaluation Method for Gas Wells in Mizhi Gas Field
97.1 Introduction
97.2 Overview of Mizhi Gas Field and Production Characteristics of Gas Wells
97.3 Single Well EUR Evaluation Method
97.3.1 Material Balance Method
97.3.2 Empirical Production Decline Method
97.3.3 Yield Instability Method
97.4 Applicability and Optimization of Evaluation Methods
97.5 Conclusion
References
98 Productivity Characteristics of Hydraulic Fracturing Tight Gas Wells and Main Controlling Factors of High Production Wells
98.1 Introduction
98.2 Productivity Characteristics of the Single Well in the M Gas Field
98.3 Gas Well Productivity Evaluation Method
98.3.1 Fracturing Vertical Wells
98.3.2 Fracturing Horizontal Wells
98.4 Research on the Main Controlling Factors of Productivity
98.5 Conclusion
References

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