Computational and Experimental Simulations in Engineering

Name: Computational and Experimental Simulations in Engineering | Proceedings of ICCES 2024-Volume 1
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Proceedings of ICCES 2024-Volume 1

Kun Zhou(Editor)

Springer (Publisher)

1st Edition

Published on 20. August 2024

XIII, 1060 pages

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Content

Intro
Contents
Computing Vibration Eigenmodes in Piezoelectric Ceramic Resonators Discretized by the Energy-Orthogonal Fifteen-Nodes Pentahedral Finite Element
1 Introduction
1.1 Finite Element Formulation
2 Dispersion Analysis
2.1 Characteristic Equations
2.2 Dispersion Equations
2.3 Energy at the Unit Cell
2.4 Numerical Research
3 Vibration Eigenmodes
3.1 Numerical Research
Appendix
References
Shape Effects of 3D MHD Mass-Based Hybrid Nanofluids
1 Introduction
2 Mathematical Model
3 Results Analysis
4 Conclusions
References
Influence of Roughness on Flow Characteristics and Resistance in Cone-Straight Nozzle
1 Introduction
2 Effect of Roughness on Flow in the Nozzle
2.1 Geometry Model
2.2 Mesh
2.3 Model Validation
2.4 Boundary Conditions
2.5 Results and Discussions
3 Flow Characteristics in Riblet
3.1 Simulations
3.2 Drag Reduction Mechanism of Riblet
4 Conclusions
5 Declaration of Interest Statement
References
Characterization and Optimization Methods for Energy Consumption in Low-Permeability Reservoir Fracturing Reconstruction
1 Introduction
2 Research Methodology and Process
2.1 Energy Consumption Characterization Method
2.2 Energy Efficiency Optimization Simulation Method
2.3 Pressure Drop Calculation Model
3 Establishment of 3D Model of Work Area
3.1 Effect of Engineering Conditions on Fracture Parameters and Productivity
3.2 Prediction Equation for Post-Press Productivity and Crack Morphology
4 Application Analysis of Energy Efficiency Evaluation of Fracturing Transformation System
4.1 Conclusion
References
Structure Parameters Optimization and Feasibility Tests of the Organ-Pipe Nozzle to Improve Near-Wellbore Reservoir Permeability
1 Introduction
2 Methods of Structure Optimization and Feasibility Test to Improve the Permeability of Organ-Pipe Nozzle
2.1 Structure Optimization of Hydraulic Cavitation Generator
2.2 Mixture Model for Multiphase Flow
2.3 Cavitation Model
2.4 RNG k - e Turbulence Model
2.5 Physical Model
3 Permeability-Improving Feasibility Test System and Method
4 Results and Analysis
4.1 Numerical Calculation Results and Analysis
5 Design of Organ-Pipe Nozzle
6 Feasibility Test Results and Analysis
7 Conclusions
References
Performance Study of Variational Quantum Linear Solver for Linear Elastic Problems
1 Introduction
2 Methodology
2.1 Linear Elastic Problem
2.2 Finite Element Discretization
2.3 Variational Quantum Linear Solver (VQLS)
3 Numerical Examples
3.1 Example 1
3.2 Example 2
4 Conclusions and Discussions
References
Effect of Downhole Electrode Length on Active Magnetic Ranging Technique for Relief Wells
1 Introduction
2 Active Magnetic Ranging Principle
3 Experiments and Numerical Analysis Under Active Magnetic Ranging Conditions
4 Impact and Insertion Capability Analysis for Electrode Length
5 Conclusions
References
Calculation and Analysis of Drag and Torque for Drill String Considering the Effect of Cuttings in Extended-Reach Drilling
1 Introduction
2 Modified Drag and Torque Model
2.1 Pipe-Cuttings Contact Stress
2.2 Drag and Torque Model
3 Mathematical Expression of the Pipe-Cuttings Contact Stress
4 Case Study
5 Conclusions
References
WeChat User Geolocation Method Based on Probe Deployment Optimization and the User Order
1 Introduction
2 Related Work
3 Proposed Method
3.1 Data Collection
3.2 Definition of Terms and Symbols
3.3 Overview of the Proposed Method
3.4 Target User Discovery
3.5 Target User Geolocation
4 Experiment
4.1 Experimental Settings
4.2 Determining Probe Path Planning Parameters
4.3 Comparative Analysis of Target Discovery Efficiency
4.4 Comparative Analysis of Geolocation Efficiency and Accuracy
5 Conclusion
References
Social User Geolocation Method Based on POI Location Feature Enhancement in Context
1 Introduction
2 Related Work
2.1 Text-Based Methods
2.2 Network-Based Methods
2.3 Hybrid Methods
3 Symbol Definition and Problem Description
4 Proposed Method
4.1 Identification of POI in User Generated Text
4.2 Filtering of Geographic Location Words and Construction of POI-Location Library
4.3 User Feature Location Enhancement Algorithm Combining POI Library and Context
4.4 Evaluation Algorithm of Social User Geolocation Effect
5 Experiment and Analysis
5.1 Experimental Data
5.2 Experimental Settings
5.3 Experimental Results of Different Types of Text on the Spatial Distribution of POI Word Vectors
5.4 The Impact of Combining a POI Library with Contextual Semantic Information
5.5 Comparative Experiment Results of Location Inference
6 Conclusions and Future Work
References
Finite Element Modelling and Life Prediction of Solder Joints of Board Level Devices Under Power Cyclic Load
1 Introduction
2 Mathematical Model
2.1 Geometric Model and Size Information
2.2 Power Cycle Load and Boundary Conditions
2.3 Constitutive Model and Thermo-Mechanical Coupling Model
2.4 Life Prediction Model
3 Results and Discussion
3.1 Temperature-Strain Analysis of Board-Level Power Cycling Load
3.2 Life Prediction of Board-Level Solder Joints Under Power Cycling
4 Conclusion
References
Study on the Influence of Turning Parameters on the Failure Probability of Life-Limited Parts
1 Introduction
2 Turning Simulation Method and Validation
2.1 Turning Simulation Method
2.2 Validation of Turning Simulation Method
3 Probabilistic Failure Risk Analysis Method Considering Turning Residual Stress
3.1 Test Model
3.2 Initial Anomaly Distribution and Random Sampling
3.3 Crack Propagation Analysis
3.4 Failure Risk Analysis
4 Results and Discussion
4.1 Influence of Cutting Speed on Residual Stress and Failure Probability
4.2 Influence of Feed Rate on Residual Stress and Failure Probability
5 Conclusion
References
An Image Segmentation Algorithm for Extracting Melt Pool Parameters in Wire Arc Additive Manufacturing
1 Introduction
2 Methodology
2.1 Otsu Image Segmentation Based on Genetic Algorithm Optimization
2.2 SASR-BiSeNet Model
3 Experiments and Results
3.1 Image Data Acquisition
3.2 GA-Otsu Separation
3.3 ES-BiseNet Training and Segmentation
3.4 Experimental Measurement
4 Conclusions
References
The Dual Reciprocal B-Spline Wavelet Boundary Element Method for Non-homogeneous Potential Problems
1 Introduction
2 The B-Spline Wavelet on the Interval
2.1 Scaling Functions
2.2 Function Approximation
3 Problem Description
3.1 2D Non-homogeneous Potential Problem's Governing Function
4 Handling Domain Integrals and Discretizing Integral Equations
4.1 Approximation the Domain-Integrals Using DRM
5 Numerical Example
5.1 Results for Different B
6 Conclusions
References
Numerical Analysis of Dynamics of Unbonded Flexible Riser Carrying Slug Flows
1 Introduction
2 Methodology
2.1 Axis-Symmetric Model
2.2 Nonlinear Bending Model
2.3 VFIFE Model
2.4 Riser-Seabed Interaction
3 Results and Discussion
3.1 Model Validation
3.2 Sensitivity Analysis
3.3 Global Dynamic Analysis
4 Conclusions
References
Trapped Annular Pressure Caused by Thermal Expansion Between Double Packers in Ultra-Deep Wells
1 Introduction
2 Trapped Annular Pressure Between Double Packers
2.1 Mechanism of Trapped Annular Pressure
2.2 Calculation Model of Trapper Annular Pressure
2.3 Model Solution
3 Example Application
3.1 Basic Information
3.2 Annular Pressure Analysis
4 Conclusions
References
Geological Line Selection in Karst and Dangerous Rock Falling Area of Daba Mountain District Railway - A Case Study on the Scheme of Both Sides of Qianhe River in Xi'an-Chongqing High-Speed Railway
1 Project Overview
1.1 Topography and Landforms
1.2 Stratum Lithology
1.3 Geological Structure
1.4 Hydrogeological Conditions
2 Project Study
2.1 Plan Composition
2.2 Comparison of Engineering Conditions in the Scheme
2.3 Analysis of Dangerous Rocks and Rockfalls at Key Bridge Sites
2.4 Analysis of Advantages and Disadvantages of the Plan
3 Conclusion
References
Cyclic Entropy Generation Rate to Signify the Fatigue Failure in Elevated-Temperature Crack Propagation of GH4169 Superalloy
1 Introduction
2 Theory and Formulation
2.1 Basic Theory of Thermodynamic Entropy
2.2 Formulation of Entropy Generation Rate
2.3 Crack Propagation Rate at Elevated Temperature
3 Numerical Simulation Method
3.1 Simulation Model
3.2 Simulation Settings
3.3 Material Properties
4 Results and Discussion
5 Cyclic Entropy Generation Rate to Signify Fatigue Failure
6 Conclusion
References
Experimental Analysis on Thermal Performance of Radially Rotating Heat Pipes at Different Filling Ratios
1 Introduction
2 Experimental Setup and Procedure
2.1 Radially Rotating Heat Pipes
2.2 Experimental Setup
2.3 Experimental Procedure
3 Results and Discussions
3.1 Thermal Resistance Analysis
3.2 Geyser Boiling Phenomenon at High Filling Ratio
4 Conclusions
References
A General Appraisal Metrics Framework for Optimal Design in the Architecture, Engineering, and Construction Industry: Considering Constantly Updating Expectation
1 Introduction
1.1 The Effort Curves
1.2 Creating Excellence Buildings
2 Updating Expectation
2.1 Architectural Principles and Techniques
2.2 Initiatives
3 Framework Development
3.1 Existing Evaluation Tools and Frameworks
3.2 Stages and Layers
3.3 Appraisal Metrics
4 Conclusion
References
Drilling Platform Position Optimization Method Based on SSA Algorithm
1 Introduction
2 Problem Formulation
2.1 Objective Function
2.2 Constraint Conditions
3 Principle of SSA (Sparrow Search Algorithm)
4 Test Data
4.1 Model Verification
4.2 SSA Testing
5 Conclusions
References
Research on Optimization of Drilling Parameters for Heterogeneous Formation Based on Genetic Algorithm
1 Introduction
2 Multi-objective Problem Description
3 Multi-objective Optimization Method of Drilling Parameters Based on Genetic Algorithm
3.1 Objective Function
3.2 Constraint Condition
3.3 Simulation Testing
3.4 Constraint Condition
4 Conclusions
References
Simulation of Underwater Explosion Shock Wave Propagation in Heterogeneous Fluid Field
1 Introduction
2 Mathematical and Physical Model
3 Model Validation
4 Results and Discussions
5 Conclusion
References
Method of Automatic Sizing and Selection of Tapered Electrical Submersible Pump System Based on Multiple Operating Cases
1 Introduction
2 Multi-case-Based Sizing and Selection Method for Tapered ESPs
2.1 Overview of the Method
2.2 Calculation of Intake and Discharge Condition
2.3 Calculation of Nodal Points Conditions
2.4 Pump Model Selection and Stages Number Sizing
2.5 Verification of Pumps' Operating Condition
3 Design Example
3.1 Calculation of Intake and Discharge Conditions
3.2 Calculation of Data at Nodal Points and in the Pumps
3.3 Pump Model Selection and Stages Number Sizing
3.4 Verification of Pumps' Operating Condition
4 Conclusions and Discussion
References
A Multimedia Display Technology for Terminal of Shipborne Radar Based on Programmable Pipeline
1 Introduction
2 Data Processing
3 Method of Texture Mapping
4 The Scheme of Implementation
4.1 The Module of PPI
4.2 The Control of Afterglow
4.3 The Control of Bow
4.4 The Control of Eccentricity
4.5 The Control of Gain and Wave Gate
4.6 The Multilayer's Control
5 Conclusion
References
A Study was Conducted to Investigate the Effects of Varying Reaction Intensities of Constrained Charges
1 Introduction
2 Experimental
2.1 Expermental Setup
2.2 Experimental Samples
2.3 Experimental Testing System
3 Experimental Results
4 Discussion
5 Conclusions
References
Study on the Dynamic Mechanical Properties of DNAN-Based Aluminized Melt-Cast Explosives
1 Introduction
2 Experiments on Dynamic Mechanical Properties of Explosives
3 Constitutive Model
4 Conclusion
References
Study on the Monitoring Method of Laminated Composites Molding Process Based on MWCNTs Coated Fiber Sensor
1 Introduction
2 Experimental
2.1 Preparation of Materials
2.2 Fabrication and Characterization of MWCNT@GF Sensor
2.3 Composite Processing and Manufacturing Processes
3 Results and Discussions
3.1 Sensing Performance Test of MWCNT@GF Sensor
3.2 Structural Health Monitoring of Composite Manufacturing Processes
4 Conclusion
References
Assessment of Load-Bearing Capacity and Buildability Failures in 3D Printed Concrete Structures
1 Introduction
2 Parameters Modelling for 3DPC
3 Experimental Design
3.1 Mixing and Preparation of Specimen
3.2 Proposed Method to Evaluate the Buildability of Printed Structure
3.3 Time Dependent Materials Properties Testing
4 Results and Discussion
4.1 Proposed Method for Buildability Testing
4.2 Time Dependent Properties Outcomes
5 Simulation Modelling of 3DPC
6 Conclusions and Recommendations
References
Research on Bending Load Localization Method for Composite Laminates Based on Flexible Sensors
1 Introduction
2 Load Positioning Principle
2.1 Deflection Function Analysis of Beams
2.2 Theoretical Derivation of the Loading Position
3 Experimental Verification
3.1 Preparation of Composite Material Specimens and Experimental Device
3.2 Bending Sensor Calibration
3.3 Experimental Results and Analysis
4 Conclusion
References
Numerical Simulation Study on the Influence of Flushing Fluid Performance Engineering Parameters on Cementing Quality
1 Introduction
2 Model Description
2.1 Governing Equation
2.2 Numerical Modeling
3 Results and Discussion
3.1 Influence of Flushing Fluid Density
3.2 Influence of the Consistency Coefficient of the Flushing Fluid
3.3 Effect of Yield Strength of Flushing Fluid
3.4 Influence of the Fluidity Index of Flushing Fluids
3.5 Influence of Flushing Fluid Flushing Speed Under the Same Condition of Flushing Time
3.6 Influence of Flushing Fluid Flow Rate Under the Condition of the Same Flushing Fluid Injection Volume
4 Conclusion
References
Research on the Distribution Law of Fault Slip Based on Finite Element Simulation
1 Introduction
2 Numerical Model Formulation and Implementation
2.1 Model Building
2.2 Formation Parameter Settings
2.3 Formation Parameter Settings
3 Result and Discussion
3.1 Impact of Fault Presence
3.2 Fault Slippage Situation
3.3 Fault Stress Distribution
4 Conclusion
References
Assessment and Analysis of Mechanical Parameter Variations in Longmaxi Shale Formation Under the Influence of Slickwater Action
1 Introduction
2 Rock Mineral Analysis
3 Experimental Methods
3.1 Shale Frictional Characteristics Testing
3.2 Mechanical Properties Testing of Shale
3.3 Testing Shale Fracture Toughness
4 Results and Discussion
4.1 Shale Frictional Characteristics Test Results
4.2 Shale Mechanical Properties Test Results
4.3 Shale Fracture Toughness Test Results
5 Discussion
References
Efficient Cutting of Submarine Pipelines by Linear-Shaped Charge
1 Introduction
2 Numerical Theory and Validation
2.1 Structured-Arbitrary Lagrange Euler (S-ALE) Method
2.2 Material Models
2.3 Numerical Validation
3 Numerical Simulation of Underwater Explosion
3.1 S-ALE Model
3.2 Damage Effect of Jet Penetration and Shock Wave
3.3 Damage Effect of Bubble Load
4 Conclusions
References
Dynamic Characteristics of Cyclic Impacts on Gas Shale Under Confining Pressure
1 Introduction
2 Materials and Method
2.1 Sample Preparation
2.2 SHPB Device and Testing Scheme
3 Results
3.1 Mechanical Behaviors of Shale
3.2 Failure Mode
3.3 Energy Consumption
4 Discussion
5 Conclusions
References
Preparation and Characterization of 3D Printed dECM/GelMA/NC/SA Tissue Engineered Hybrid Scaffold
1 Introduction
2 Materials and Methods
2.1 Preparation of dECM and Evaluation of Acellular Efficiency
2.2 Preparation of dECM/GelMA/NC/SA Scaffold
2.3 Mechanical Properties of dECM/GelMA/NC/SA Scaffold
2.4 The Microstructure of dECM/GelMA/NC/SA Scaffold
2.5 Biocompatibility of dECM/GelMA/NC/SA Scaffolds
2.6 Statistical Analysis
3 Results and Discussion
3.1 Macrostructure and Microstructure of Tissues Before and After Decellularization
3.2 Histochemical Staining
3.3 Structure of dECM/GelMA/NC/SA Scaffold
3.4 Mechanical Properties of dECM/GelMA/NC/SA Scaffolds
3.5 Biocompatibility of dECM/GelMA/NC/SA Scaffolds
4 Conclusion
References
Landmarks Screening Method Based on Elliptical Trajectories Constraint
1 Introduction
2 Method Framework and Main Steps
3 Experiments
4 Conclusion
References
Analytical Solution of Seismic Scattering on Sea Slope Induced by P1 Wave
1 Introduction
2 Theoretical Model and Wave Field
2.1 Theoretical Model
2.2 The Analysis of Free Wave Field
2.3 The Analysis of Scattering Wave Field
3 Boundary Conditions and Solutions
3.1 The Boundary Conditions
3.2 The Solution of Problem
3.3 Simulation of Underground Motion
4 Numerical Result Analyses
5 Concluding Remarks
Appendix 1
References
A FEM-CZM Based Coupled Thermal-Hydro-Mechanical Model for Deep Offshore Hydraulic Fracturing
1 Introduction
2 THM Coupling Mathematical Model
2.1 Governing Equation
2.2 Damage Model of the Fracture Zone
2.3 Seepage and Energy Balance Equations for the Fracture Zone
3 Model Validation
4 THM Simulation of Hydraulic Fracturing in Buried Hill Reservoirs
4.1 Overview of the Test Area and Modeling
4.2 Boundary and Initial Conditions
5 Results and Discussion
5.1 Effect of Temperature Difference
5.2 Effect of Fracturing Fluid Viscosity
5.3 Effect of Fracture Leak-Off Coefficient
6 Conclusion
References
Recoil Response Analysis of Emergency Disconnection of Deepwater Drilling Riser Using Vector Form Intrinsic Finite Element (VFIFE) Method
1 Introduction
2 Mechanical Model
2.1 Deepwater Drilling Riser
2.2 Drilling Mud Discharge
2.3 Direct-Acting Tensioner
3 Numerical Solution Method
4 Model Analysis
4.1 Case Study
4.2 Sensitivity Analysis
5 Conclusions
References
Reliability Parameter Estimation Method for Aviation Piston Engine High-Pressure Pump Based on Modified Grey-Three-Parameter Weibull Distribution Model
1 Introduction
2 Proposed Modified Grey-Three-Parameter Weibull Method
2.1 Statistical Properties of Three-Parameter Weibull Distribution
2.2 GM(1,1) Grey Model
2.3 Modified Grey-Three-Parameter Weibull Distribution Modeling
2.4 Validation of Prediction Results
3 Case Study
3.1 Aviation Piston Engine High-Pressure Pump Failure Raw Data
3.2 Reliability Parameter Estimation
3.3 Comparison with Other Distributions and Methods
3.4 Comparison of Results for Different Sample Sizes
4 Conclusion
References
Designing Non-periodic 3D Woven Composite Preforms Using LSTM Deep Learning Networks
1 Introduction
2 3D Woven Preform Fabrication
3 Design Method
3.1 Principal Stress Vectors
3.2 Tow Path Vectors
3.3 Hungarian Algorithm
3.4 Long Short-Term Memory (LSTM) Network
4 Results
5 Conclusion
References
A Experimental Study on Bubble Migration Laws in Wellbore During Bullheading Killing
1 Introduction
2 Experimental Scheme
2.1 Experimental Apparatus
2.2 Experimental Procedure and Data Processing Methods
2.3 Properties of Experimental Media
2.4 Rationality of Experimental Design
3 Bubble Migration Characteristics in Bullheading Killing Method
3.1 Radial Distribution of Bubbles of Different Sizes
3.2 Patterns of Bullheading for Bubbles of Different Sizes
4 Model of Bubble Velocity During Bullheading
4.1 Model Selection for Bubble Rise Velocity
4.2 Empirical Formula for Distribution Coefficients During Bullheading
5 Conclusions
References
Against Credential Thief - A Modular Honeytoken Based Framework
1 Introduction
1.1 Challenges
1.2 Our Approach
1.3 Our Contributions
2 Related Works
3 Methodology
3.1 Utilization of Honeytoken
3.2 Generate Fake Username
3.3 Protection Method
4 Framework
4.1 Perception
4.2 Generation
4.3 Insertion
4.4 Synchronization
4.5 Detection
4.6 Attack Scenario
5 Generation Experiment
5.1 Word2vec Model
5.2 Text Generation
5.3 Keyword Extraction
6 Experimental Results
6.1 Result Analysis
7 Conclusion
References
Research on the Influence of Stress Field Variations on Reservoir Stimulation Under Complex Structural Conditions in the Yingxiongling Shale Oil Reservoir
1 Introduction
2 Regional Geologic Features and Stress Field Characteristics
3 Effects of Complex Stress Fields on Artificial Cracks
4 Study on the Countermeasures for Reservoirs Stimulation
5 Conclusion
References
Research on Homography Estimation Method Based on Deep Learning
1 Introduction
2 Homography Concept and Traditional Implementation
2.1 Homography Concept and Principles
2.2 Traditional Feature-Based Methods
3 Deep Learning-Based Homography Estimation Methods
3.1 Supervised Approaches
3.2 Unsupervised Approaches
3.3 Comparing Supervised vs. Unsupervised Homography Estimation
4 Applications of Deep Learning-Based Homography Estimation
4.1 Image Stitching and Reconstruction
4.2 Visual Navigation and Environmental Perception
4.3 Image Processing and Enhancement
5 Challenges and Prospects
6 Conclusion
References
Prediction Method for Rock Drillability Level in Complex Formations Based on Local Weighted Regression Linear
1 Introduction
2 Theory Background
2.1 Linear Regression
2.2 Local Weighted Linear Regression
3 Methodlogy
3.1 Data Descreption
3.2 Data Normalization and Model Assement
4 Results and Discussion
4.1 Basic Input Parameters
4.2 Results
4.3 Discussion
5 Conclusion
References
Seismic Failure Analysis of Electrical Connection Structure of Grid-Side Bushing of ± 800 kV Converter Transformer
1 Introduction
2 Finite Element Model
2.1 Structural Characteristics
2.2 Finite Element Model
3 Contact State Analysis of Electrical Connection Structure
3.1 Contact Stress Analysis of ECS Under Normal Operating Condition
3.2 Definition of Contact Stress Levels
4 Seismic Response Analysis of Electrical Connection Structure
4.1 Selection of the Ground Motion
4.2 Contact Stress Analysis of ECS Under Earthquake Action
5 Conclusions
References
Simulation and Optimization of Heat Dissipation Performance of a Commercial Vehicle Brake Disc
1 Introduction
2 Method
2.1 Fluid Simulation Method of the Brake Disc
2.2 Bench Test of the Brake Disc
2.3 Verification of Fluid Simulation Methods
3 Optimization of Brake Disc Heat Dissipation Performance
3.1 Comparison of Heat Dissipation Performance Between Two Brake Discs
3.2 Optimization of Ventilated Channel Structure
4 Conclusion
References
Analysis of the Causes of Packer Failure in Production Operations Based on the Three-Dimensional Envelope Curve of the Packer
1 Introduction
2 Establishment of Packer Finite Element Simulation Model
2.1 Packer Finite Element Simulation Model Parameters
2.2 Packer Finite Element Simulation Model Meshing and Boundary Conditions
2.3 Analysis of Packer Finite Element Mechanics Simulation Results
3 Packer Performance Envelope Curve
3.1 Packer Performance Envelope Curve Definition
3.2 Packer Failure Mode
3.3 Factors Affecting Packer Performance Envelope Curve
4 Conclusion
References
Classification and Analysis of Fracturing Interference in Yiongxiong Ling Shale Oil Stacked Completions
1 Introduction
2 Overview of the Construction of Platform 1H in Yingxiongling
3 Interference Characteristics
3.1 Pressure Disturbance Characteristics
3.2 Tracer Interference Characterization
4 Interference Pattern Analysis
4.1 Type of Interference
4.2 Basis for Determining the Type of Interference
4.3 Critical Result
5 Analysis of the Interference Mechanism of Yingxiongling and Its Influence Rules
References
An Isogeometric Topology Optimization Method for Free-Form Shell Structures Using T-splines
1 Introduction
2 Isogeometric Analysis of Shell Structures Based on T-splines
2.1 T-splines Overview
2.2 Isogeometric Analysis Method Based on T-splines
2.3 Isogeometric Analysis Method for Thin Shell Structure
2.4 Numerical Examples of Isogeometric Analysis for the Turbine Blade
3 Isogeometric Topology Optimization Based on T-splines
3.1 Problem Statement
3.2 Sensitivity Analysis
4 Numerical Examples of Isogeometric Topology Optimization
5 Conclusion
References
Three-Dimensional Numerical Simulation of Interaction Between Hydraulic Fractures and Natural Fractures in Deep Coal Reservoir
1 Introduction
2 Numerical Simulation Methods
2.1 Mechanical Model
2.2 Flow Model
2.3 Liquid-Solid Coupling
3 Model Establishment
4 Result and Analysis
4.1 NF Size
4.2 Injection Displacement
4.3 Approaching Angle
4.4 Multistage Fractures
5 Conclusion
References
A CFD Study of Surface Burning Fire Scenario for Evaluating Compliance of the Aircraft Cargo Compartment's Fire Suppression System
1 Introduction
2 Surface Burning Fire Scenario Setup
3 CFD Modeling Methodology
4 Result
4.1 Smoke Soot Propagation
4.2 Vertical Configuration Flame Shape
4.3 Horizontal Configuration Flame Shape
5 Discussion
5.1 Top Temperature Threshold Response Time
5.2 Top Temperature Development
5.3 Ceiling Temperature Distribution
6 Conclusions
References
Focused Ion Beam and Digital Image Correlation (FIB-DIC) Assisted Numerical Residual Stress Field Reconstruction in Laser-Welded Ti-6Al-4V
1 Introduction
2 Material and Method
2.1 Materials and Samples
2.2 Residual Stress Reconstruction
2.3 In-Plane Stress Mapping with FIB-DIC
3 Results
3.1 Incompatible Zone Width Measurements
3.2 Residual Stress Measurements Within the Incompatible Zone
3.3 Reconstructed Residual Stress Field
4 Discussion
5 Conclusions
References
Study on Ballistic Limit of GFRP Laminates with Different Thickness
1 Introduction
2 Experiment
2.1 GFRP Laminates and Fragments
2.2 Ballistic Test
3 Method
3.1 Model Setup
3.2 Material
4 Result and Discussion
4.1 Penetration Process
4.2 Residual Velocity and Ballistic Limit
4.3 Relation Between Ballistic Limit and Thickness
5 Conclusion
References
Optimal Design of Vibration and Thermal Reliability of Printed Circuit Board Mounting Components for Space Electronic Equipment
1 Introduction
2 Structural Model
3 Thermal Design and Analysis
3.1 Thermal Design
3.2 Thermal Analysis
4 Mechanical Analysis
4.1 Random Vibration Stress Analysis
4.2 Fatigue Life Analysis
5 Optimal Design
6 Conclusion
References
Design of Intelligent Flood Control System for Shenzhen Intercity Railway
1 Introduction
2 Status of Flood Control Measures
2.1 Infrastructure Requirements and Flood Control Supplies
2.2 Digital Flood Monitoring System
3 Flood Control Demand Analysis of Intercity Railway
4 Intelligent Flood Control System Design
5 Summary
References
Equivalent Elastic-Plastic Model of BCC Lattice Structures
1 Introduction
2 Method
3 Results and Discussion
4 Conclusion
References
Real-Time Prediction of Bottomhole Equivalent Circulating Density (ECD) Based on Machine Learning Algorithms in Offshore Deepwater Drilling
1 Introduction
1.1 Machine Learning Methods for Predicting Drilling ECD
2 Prediction Model and Results Analysis
2.1 Initial Data Preprocessing and Feature Parameter Selection
2.2 GRNN Basic Structure and Theoretical Foundations
2.3 Parameters Setting and Optimization of Hyperparameter for Training Models
3 Conclusions
References
Research on the Evaluation of Flow Assurance Techniques for Offshore Heavy Oil Testing
1 Introduction
2 Modeling of Wellbore Temperature Field for Offshore Heavy Oil Testing Wells
2.1 The Assumptions of the Model
2.2 Wellbore Temperature Field Model
2.3 Calculation of Heat Transfer Coefficient
3 Calculation Example and Result Analysis
3.1 Basic Data
3.2 The Effect of Heating Power on the Wellbore Temperature Distribution
3.3 The Influence of Heating Depth on the Wellbore Temperature Distribution
3.4 The Impact of Insulation Tube Coefficient on Wellbore Temperature Distribution
3.5 The Influence of Insulation Tube Depth on Wellbore Temperature Distribution
3.6 Comparison of Wellbore Temperature Distribution Under Different Flow Assurance Processes
4 Conclusion
References
Research on Energy-Saving Optimization of Different Formation Configurations Based on Four Catamarans
1 Introduction
2 Numerical Model
2.1 Geometric Modelling
2.2 Comparison of Simulation-Test Results
3 Analysis of Hydrodynamic Performance in Different Formation Configurations
4 Conclusion
References
Research on Wellbore Temperature and Pressure Prediction of Oil-Based Drilling Fluid System in Deep Water Drilling Under the Condition of Coexistence of Overflow and Lost Circulation
1 Introduction
2 Theoretical Model of Coexistence of Gas Invasion and Lost Circulation in Deep-Water Drilling
2.1 Mass Conservation Equation
2.2 Momentum Conservation Equation
2.3 Energy Conservation Equation
3 Model Solution and Verification
3.1 Model Solving Procedure
3.2 Model Validation
4 Results and Discussions
5 Conclusion
References
Study on Multi-string Wellhead Growth Prediction in High Temperature Wells and Analysis of On-Site Example
1 Introduction
2 Thermal Debonding Mechanism of Casing-Cement Sheath
3 Calculation Model of Single-Layer Casing Growth
3.1 Cemented Section Casing
3.2 Debonding Section Casing
4 Prediction Method for Wellhead Growth Height
5 Sensitivity Analysis of Influencing Factors
5.1 Production Speed
5.2 Production Time
5.3 Thermal Conductivity of Tubing
5.4 Casing-Cement Bonding Load
6 On-Site Case
7 Conclusion
References
Field Measurement and Retrieval Research of Multi-physics Micro-measurement Devices During the Drilling Process in Oil and Gas Wells
1 Introduction
2 Multi-Physics Micro-measurement Device
3 Field Measurement and Retrieval Test
3.1 Introduction to Test Wells
3.2 Test Process
3.3 Result
3.4 Problems and Suggestions
4 Conclusion
References
Variation Characteristics of In-Situ Stress and Its Influence on Casing Deformation Under Different Fracturing Technology
1 Introduction
2 General Situation of Fracturing and Casing Deformation in the Fengnan 4 Well Area
2.1 Fracturing Situation of the Fengnan 4 Well Area
2.2 Casing Deformation Characteristics
3 Establishment of Numerical Model of Platform Well Fracturing Technology
3.1 Cohesive Element Crack Propagation Theory
3.2 Model Establishment and Parameter Conditions
4 Results and Discussion
4.1 Variation Law of In-Situ Stress Around Well Under Different Fracturing Technology Conditions
4.2 Variation of Casing Stress and Displacement Under Different Fracturing Technology Conditions
5 Conclusion
References
Numerical Simulation on Cavity Forming Mechanism of Mud-Burst in Clay-Altered Rock
1 Introduction
2 Mud-Burst Disaster in Clay-Altered Rock
2.1 Background of Diversion Tunnels in the Yingliangbao Hydropower Station
2.2 The Engineering Characteristics of Clay-Altered Rock
2.3 Mud-Burst Disaster in Clay-Altered Rock Tunnel
3 Numerical Model Formed by Geological Survey
3.1 Geological Outcrop and Drilling Data
3.2 The Shape and Location of Cavity
3.3 Numerical Model
4 Influence of Cavity Formed by Mud-Burst
4.1 Cavity Filling Rate
4.2 Influence of Cavity Filling Rate
5 Conclusion
References
Dynamic Model and Analysis on Slipping of Rolling Ball Bearing Under Variable Speed
1 Introduction
2 Theoretical Dynamic Model
2.1 Interaction Between Rolling Ball and Races
2.2 Interaction Between Rolling Ball and Cage
2.3 Flowing Resistance of Rolling Ball
2.4 Differential Equation of Motion
3 Results and Discussions
3.1 Result Validation
3.2 Analysis of Results for Different Radial Loads
3.3 Analysis of Different Accelerations
3.4 Different Radial Clearances
4 Conclusion
References
Simulation Study of Large-Slope Well Leakage in Carbonate Fracture-Cave Reservoirs
1 Introduction
2 Gravity Displacement Mechanism of Fractured Formation
2.1 Gravity Displacement Conditions for Fractured Formation
2.2 Gravity Replacement Window
2.3 Analysis of Influencing Factors
3 Simulation Analysis of Fracture-Caved Reservoir Leakage
3.1 Simulation of Gas-Liquid Gravity Displacement in Large-Slope Wells
3.2 Simulation of Drilling Leakage Rates in Large-Slope Wells
3.3 Simulation of Different Cracks' Leakage Rates
3.4 Simulation of Faults and Caves' Leakage Rates
3.5 The Influence of Drilling Fluid Circulation Rate on Leakage Rate
4 Conclusion
References
Simulation Study on Emergency Evacuation of Pedestrians Affected by Water Invasion on Subway Platform
1 Introduction
2 Basic Overview
2.1 Principle of VOF Model
2.2 Social Force Model
2.3 Evacuation Time for Pedestrians Wading Through the Subway Station Concourse Level
3 Model Construction
3.1 Consideration of Dynamic Water Invasion Model Construction
3.2 Consideration of Passenger Flow Model Construction Under Dynamic Water Invasion Impact
4 Case Study
4.1 Dynamic Simulation Analysis of Water Invasion
4.2 Passenger Flow Safety Evacuation Simulation Analysis
5 Conclusion
References
Research on a Data-Driven and Lightweight Structure Monitoring and Early Warning System for Integrated Subway Hubs
1 Introduction
2 Research Framework
3 Multi-source Data Analysis and Processing
3.1 Model Data Based on BIM Technology
3.2 Structural Monitoring Data Based on IoT Technology
3.3 Predictive Data Based on the Optimized WOA-LSTM Algorithm
4 Construction of a Lightweight Integrated Structural Safety Monitoring and Early Warning System
4.1 Overall System Structure
4.2 System Module Content
5 Case Study
5.1 Overview of the Project
5.2 Monitoring Plan for Excavation Support Structure and Operating Line in Deep Foundation Pit
5.3 Results of Deep Excavation Monitoring Based on Lightweight BIM Platform
6 Conclusion
References
Electro-thermo-hydrodynamics of Polymer Viscoelastic Fluids with Heat Transfer and Dynamic Properties
1 Introduction
2 Problem Statement
2.1 Dimensionless Governing Equations
2.2 Boundary Conditions and Numerical Implementation
2.3 Code Validation and Numerical Methods
3 Results and Discussion
4 Conclusion
References
Nonlinear Coupled Constitutive Relations for Multi-species Gas Flow with Translational, Rotational and Vibrational Modes
1 Introduction
2 Methodology
2.1 Governing Equation and Nonlinear Coupled Constitutive Relations for Multi-species Gas
2.2 Thermochemical Nonequilibrium Model
2.3 Numerical Method
3 Results and Discussion
3.1 Hypersonic Flow Around an Experimental Sphere
3.2 Hypersonic Flow Past a HTV-Type Flying Vehicle
4 Conclusion
References
Research on Fire Evacuation Strategies for Ultra-deep Metro Hubs
1 Introduction
2 Theoretical Overview
2.1 Research Framework
2.2 Overview of Ultra-deep Metro Hubs
2.3 Impact of Fire on Evacuation
3 Case Study
3.1 Introduction to Ultra-deep Metro Hub
3.2 Parameter Settings
3.3 Fire Numerical and Evacuation Models
4 Conclusions and Suggestions
References
Color Image Steganalysis Algorithm Based on Quaternion Convolutional Neural Network
1 Introduction
2 Related Works
2.1 SCRM
2.2 JRM
2.3 WISERNet
3 Proposed Network
3.1 Image Dimensionality Module
3.2 Feature Extraction Module
3.3 Feature Conversion Module
4 Experimental Result
4.1 Network Depth Determination
4.2 Feature Conversion Module Determination
4.3 Detection Results
5 Conclusion
References
Research on Lower Limb Injuries During Parachute Landing Based on a Whole-Body Finite Element Model
1 Introduction
2 Method and Verification
2.1 Finite Element Model
2.2 Feasibility Verification of GHBMC Model
3 Application and Discussion
4 Conclusion
References
A New NARX Neural Network Model for Real-Time Pore Pressure Prediction Based on Surface Logging Data
1 Introduction
2 Theory of the Pore Pressure Prediction Model Based on Depth Sequence
2.1 Theory of the Nonlinear Auto-Regressive (NARX) Model with Exogenous Inputs Algorithm
2.2 Pore Pressure Prediction Model Based on Depth Sequence
2.3 Model Uncertainty Evaluation Methods
3 Model Parameter Optimization
4 Model Application Result
5 Conclusion
References
Damage Mechanism and Optimization of Coalbed Methane Fracturing Fluid Reservoir in Guizhou Province
1 Introduction
2 Experimental Materials and Methods
2.1 Experimental Materials
2.2 Experimental Methods
3 Results and Discussion
3.1 Damage Analysis and Mechanism Research of Fracturing Fluid System
3.2 Optimization and Evaluation Analysis of Fracturing Fluid System
4 Conclusions
References
Fabrication and Characterization of dECM/PVA/GelMA Tissue-Engineered Small-Diameter Blood Vessels
1 Introduction
2 Materials and Methods
2.1 Preparation of dECM Derived from Porcine Cardiovasculature
2.2 Qualitative Testing of Decellularization Efficiency
2.3 Quantitative Testing of Decellularization Efficiency
2.4 Preparation of dECM/PVA/GelMA Pregel Solution
2.5 Microscopic Morphology of dECM/PVA/GelMA Hydrogel Tubes (SEM)
2.6 Mechanical Properties of dECM/PVA/GelMA Hydrogel Tubes
2.7 Cell Adhesion
2.8 Cell Viability and Death Staining Test
2.9 Statistical Analysis
3 Results and Discussion
3.1 Preparation of dECM and Qualitative Testing of Decellularization Efficiency
3.2 Quantitative Testing of Decellularization Efficiency
3.3 Macro-micrographs of dECM/PVA/GelMA Hydrogel Tubes
3.4 Mechanical Properties of dECM/PVA/GelMA Hydrogel Tubes
3.5 Cell Adhesion and Cell Viability and Death Staining Test
4 Conclusion
References
The Investigation of Fracture Toughness Evaluation Methods of Oil Well Cements
1 Introduction
2 Materials and Methods
2.1 Materials
2.2 Methods
2.3 Size Effect
3 Results
3.1 Fracture Toughness of Different Sizes
3.2 Fracture Toughness of Different Methods
3.3 Fracture Toughness of Different Recipes
3.4 SEM
4 Concluding Remarks
References
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