Dynamics and Aerodynamics of Cables

Name: Dynamics and Aerodynamics of Cables | ISDAC 2023
Brand: Springer
Price: 223.63 EUR
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ISDAC 2023

Vincenzo Gattulli Marco Lepidi Luca Martinelli(Herausgeber*in)

Springer (Verlag)

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Erschienen am 17. Januar 2024

XIV, 376 Seiten

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978-3-031-47152-0 (ISBN)

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Beschreibung

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Inhalt

Intro
Organization
Preface
Contents
Keynotes
Explore Essential Elements in the Generation Mechanisms of Wind-Induced Cable Vibrations: An Insight Offered by Numerical Techniques
1 Introduction
2 Role of Cable Orientation
2.1 Numerical Model
2.2 Near Wake Structure
2.3 Sectional Lift
3 Effect of Roundness Imperfection
3.1 Numerical Model
3.2 Sectional Lift
3.3 Surface Pressure
3.4 Stream Trace
4 Concluding Remarks
References
Cable Structures
Novel Position Control for Ensuring Feasible Tension Distribution of Cable-Driven Parallel Manipulators
1 Introduction
2 Cable-Driven Parallel Robot Modelling
2.1 Kinematic and Static Models
2.2 Dynamic Model
2.3 Workspace Limitation and Control Requirements
3 Control System Design
3.1 Preliminaries
3.2 Novel Proposal
3.3 Controller Tuning
4 Simulation Results
4.1 Preliminaries
4.2 Controller Tuning
4.3 Trajectory Tracking Results
5 Conclusions
References
Kinetostatic Analysis of a Novel Planar Cable-Driven Robot with a Single Cable Loop
1 Introduction
2 System Description
2.1 Workspace Gain
3 Mathematical Model
3.1 Kinetostatic Model
4 Kinematic Control
5 Simulation Results
6 Conclusions
References
Dynamic Testing of a Long-Span Suspension Cable Net
1 Introduction
2 Characteristics of the Structure
2.1 Monitoring System and Dynamic Test
3 Conclusions
References
Vibration Mitigation of Catenary Bridges
1 Introduction
1.1 Catenary Bridge Structures
2 Physical Model
2.1 Model Fabrication
2.2 Principles of the Proposed Structural Arrangement
3 Static Numerical Model
3.1 Introduction of the Numerical Approach
3.2 Static Equations of the Geometrically Non-linear Structure
4 Dynamic Numerical Model
5 Validation
6 Conclusions
References
Field Observation of Global and Local Dynamics of a Cable-Stayed Bridge
1 Introduction
1.1 The Study Case
1.2 Instrumentation
2 Data Analysis
2.1 Spectral Analysis
2.2 System Identification Using the SSI-COV Method
2.3 Cable Dynamics in Relation to Weather Conditions
3 Summary and Conclusions
References
Aerodynamics and Nonlinear Dynamics
Wake Galloping Suppression in Two Closely Spaced Cylinders with Surface Modification
1 Introduction
2 Wind Tunnel Tests
3 Results and Discussion
3.1 Wake Galloping in Two Plain Cylinders
3.2 Wake Galloping Suppression by Cylinders with Spiral Protuberances
4 Conclusions
References
Comparison of Observed and Simulated Galloping Responses of a Four-Bundled Conductor Under Wet Snow Accretion
1 Introduction
2 Overview of the Kushiro Test Line
3 Galloping Observed on January 12, 2022
3.1 Meteorological Conditions During the Development of Wet Snow Accretion
3.2 Response of the Four-Bundled Conductor Due to Galloping
4 Comparison with Simulated Galloping
5 Conclusions
References
Statistical Study of Aeolian Vibration Characteristics of Overhead Conductor
1 Introduction
2 Test Setup and Data Structure
3 Statistical Characteristics of Aeolian Vibration
3.1 Preliminary Analysis
3.2 The Optimal T and ?t
3.3 Rayleigh Distribution and Yb
4 Conclusion
References
Three-Dimensional Flow Characterizations for Yawed and Inclined Circular Cylinders for Bridge Cable Stays
1 Introduction
2 Computational Model
3 Pressure Distribution Around the Cable Model
4 Velocity Distribution Around the Cable Model
5 Pressure Distribution on the Leeward Side of the Cylinder
6 Cross-Coherence
7 Conclusions
References
Propagation of the Uncertainty in the Dynamic Behavior of OPGW Cables Under Stochastic Wind Load
1 Introduction
2 Deterministic Model
3 Uncertainty Propagation
4 Wind Model
5 Case Study
6 Results and Discussion
7 Conclusion
References
Investigation of Ice Accretion Conditions in Observed Galloping Events of Four-Bundled Conductor
1 Background and Objective
2 Observation Method
3 Observation Result
3.1 Overview of Observed Ice Accretion Events
3.2 Ice Accretion and Galloping Characteristics in Typical Three Events
4 Conclusion
References
The Influence of Ice Accretion Thickness on the Aerodynamic Behaviour of Stay Cables of Bridges
1 Introduction
2 Experimental Conditions
3 Results
4 Conclusions
References
Non-linear Dynamic Response of a Small-sag Cable Model of a Guy Line of a Guyed Tower to Stochastic Wind Excitation
1 Introduction
2 Static Behaviour of a Small-sag Cable
3 Nonlinear Equations of Motion for a Small-sag Cable
4 Vibrations of a Guy Line Due to a Base Motion Excitation
5 Stochastic Model
6 Application of the Equivalent Linearization Technique
7 Numerical Results
8 Conclusions
References
Review Study on Nonlinear Modeling Issues Associated with the Dynamics of In-Plane Cable Networks
1 Introduction
2 Theoretical Background
2.1 Nonlinear Cable Network Dynamics
2.2 Stochastic Approximation
2.3 Layered SA Algorithm
3 Simulation Results
3.1 BSL Network-Deterministic Linear Analysis
3.2 ELM Analysis of the BSL Network with Non-linear Cross-Tie
4 BSL Network-Stochastic Approximation
5 BSL Network-Random Eigenvector Analysis
6 Conclusions
References
Monitoring and Testing
Force Measurements on Flexible Sagged Cable Undergoing Forced Vibration at a Single Point
1 Introduction
2 Experimental Setup
3 Results and Discussion
3.1 Types of Response
3.2 Effects of Time Rate Change of Excitation Frequency
3.3 Effects of Steady Excitation Frequency
4 Conclusions
References
Wave Propagation-Based Assessment of Damage in Laboratory Samples of a Cable
1 Introduction
2 Transverse Wave Propagation in Bridge Cables
3 Laboratory Setup and Tests
4 Results and Discussion
4.1 Modal Properties
4.2 Transverse Wave Velocities
5 Conclusions
References
Full-Size Testing of Stay Cable Damping for the Assessment of Viscous Damper Efficiency
1 Introduction
2 Damping Tests at Guadiana Bridge (Spain-Portugal)
2.1 Inspection and Stay Cable Replacement at Guadiana International Bridge
2.2 Damping Tests
3 Assessment of Viscous Damper Efficiency
3.1 Viscous Damper Design
3.2 Damping Assessment
4 Results: Damper Efficiency at Guadiana International Bridge
5 Conclusions
References
Vibration Excitation and Damping of Suspension Bridge Hanger Cables
1 Introduction
2 1915 Çanakkale Suspension Bridge Hanger Vibrations
2.1 Wind Tunnel Tests
2.2 Wind Tunnel Test Results
3 Hanger Cable Dynamics
4 Stockbridge Dampers
5 Example: Hanger 111 of the 1915 Çanakkale Bridge
6 Failure of the Stockbridge Dampers
7 Conclusions
References
Cable-Stayed Bridge Model Updating Through Analytical Formulation, Finite Element Model and Experimental Measurements
1 Introduction
2 Bridge Description and Experimental Tests
3 Analytical Cable Model and Tension Identification
4 Bridge Models
4.1 Computational Model
4.2 Modal Identification and Model Updating
5 Conclusions
References
Identification and Control
Bayesian Identification of the Axial Forces, the Bending Stiffnesses, and the Connecting Point in Crossed Cables
1 Introduction
2 In-Plane Analytical Model
2.1 Problem Formulation
2.2 Solution of the Eigenvalue Problem
3 Non-linear Bayesian Regression
4 Application
4.1 Small-Scale-Lab Setup
4.2 Full-Scale-Haccourt Bridge
5 Conclusions
References
Comparison of Fatigue Lifetime Estimation of a Conductor Based on a Standard Vibration Device and Other Structural Health Monitoring System Sensors
1 Fatigue of Conductors
2 S-N Curves and CIGRÉ's Safe Border Line (CSBL)
2.1 Poffenberger and Swart Equation
3 Stockbridge Dampers
4 VIBREC500 Vibration Recorder
5 Laboratory Setup
5.1 Instrumentation
6 Best Stockbridge Position Along the Cable
6.1 Tests Description
7 Lifetime Estimation
8 Conclusions
References
On the Assessment and Mitigation of Vortex-Induced-Vibrations of Overhead Electrical Conductors
1 Introduction
2 Formulation of the Problem
2.1 Equations of Motion
2.2 Natural Frequencies and Mode Shapes
2.3 Energy Balance Equation
3 Application Example
4 Conclusions
References
A Numerical Investigation on the Dynamic Response of Short Slack Cables
1 Introduction
2 Numerical Model
2.1 Moment-Curvature Law
2.2 Model Calibration
3 Quasi-static Analyses
3.1 Cable Slackness
3.2 Loading Conditions
3.3 Numerical Results
4 Dynamic Analyses
5 Conclusions
References
Comparing Different Techniques of Determining Cable Forces from Vibration Measurements on a Cable-Stayed Arch Bridge
1 Introduction
2 Assessment of Cable Forces
2.1 Taut-String Method
2.2 Modal Analysis
2.3 Additional Point Mass
3 Field Measurements
3.1 Brug Over de Beneden Merwede
3.2 Measurement Set-Up
3.3 Measurement Procedure
4 Data Evaluation
5 Results
5.1 Frequencies
5.2 Vibration Length and Cable Force
5.3 Evaluation of the Results
6 Conclusion
References
Models
On the Seismic Response of Anchoring Elements for Submerged Floating Tunnels
1 Introduction
2 Local Dynamics of the Anchoring Element
2.1 Preliminaries
2.2 Equations of Motion
3 Application Example
3.1 Modeling of the Seismic Motion
3.2 Global Response of the SFT
3.3 Local Response of the Cable
4 Conclusions
5 Coefficients of the Equation of Motion
References
3D Finite Element Modelling of Conductor-Clamp Assemblies Under Cyclic Bending: Sensitivity Analysis of Wire Contact Coefficient of Friction
1 Introduction
2 Numerical Modelling and Analysis Approach
2.1 Conductor-Clamp Finite Element Model
2.2 Factorial Design Approach
3 Coefficient of Friction Analysis
3.1 Relation Between ?ß and Yb
3.2 Coefficient of Friction Influence on Local Loading Distribution
3.3 Coefficient of Friction Interrelations with Loading Parameters
3.4 Coefficient of Friction Influence on Local Loading Variation
4 Conclusion
References
Numerical Characterization of Overhead Conductor Local Loading Conditions at Wire Contact Points in the Vicinity of Suspension Clamps
1 Introduction
2 Numerical Design of Experiments
2.1 Conductor-Clamp Configuration
2.2 DOE Factors and Levels
2.3 Conductor-Clamp Finite Element Model
3 DOE Response Analysis
3.1 Local Loading Distribution
3.2 Factor Interrelations
4 Conclusion
References
General Modelling of Cable Vibrations Using Data Extracted from Physical Simulation
1 Introduction
2 Methodology
3 Linear Regression
4 Cylinder Flow Vibrations Using Linear Regression
5 Conclusion
References
Parametric Dynamic Modeling of Cable-Driven Parallel Manipulators
1 Introduction
2 Parametric Modeling
2.1 Kinematics
2.2 Equations of Motion
2.3 Nondimensional Form
2.4 Approximate Solution of the Equations of Motion
3 Direct Approach to the Dynamic Problem
3.1 Numerical Simulations on a Case-Study CDPM
4 Conclusions
References
Catenary Solutions for Inextensible Cables: A Perturbation-Based High-Order Approximation
1 Introduction
2 Static Equilibrium Problem
2.1 Governing Equations and Catenary Solutions
3 Perturbation Strategy for Fully-Analytical Solutions
4 Concluding Remarks
References
Author Index

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