Preface
Contents
About the Editors
Plenary Lectures
Non-holonomic Systems in View of Hamiltonian Principle
1 Introduction
1.1 Physical and Engineering Motivation
1.2 View of Classical Dynamics and Related Disciplines
2 Basic Considerations
2.1 Holonomic and Non-holonomic Constraints
2.2 Definition of a Holonomic and Non-holonomic System
2.3 Assembling of the Governing System in Holonomic and Non-holonomic Versions
3 Demonstration of Individual Systems
3.1 First-Order Linear Constraints
3.2 First-Order Nonlinear Constraints
3.3 Second-Order Nonlinear Constraints
3.4 Third-Order Nonlinear Constraints
4 Conclusions
References
Semi-plenary Lectures
Energy Performance of Vibrational Transportation and Process Machines
1 Introduction
2 Energy Consumption for the Vibration Effect on the Process Load
3 Modeling the Process Load Effect by the Viscous Friction Force: On the Question of the “Added Mass” of the Load
4 Energy Consumption in Bearings of Exciters
5 On the Motor Power Required for Lifting Unbalanced Loads During Machine Start
6 Evaluation of Motor Power Required to Overcome the Resonant Frequency During Machine Start
7 Comparison of the Calculated Energy Consumption with the Installed Capacity of Motors of Certain Vibrating Screens
8 Conclusion
References
Minisymposia: MS 1 Water Wave Scattering, Generation and Propagation
Scattering of Water Waves by a Circular Trench
1 Introduction
2 Mathematical Formulation
3 Method of Solution
4 Numerical Results
5 Conclusion
References
Interface Wave Diffraction by a Permeable Thin Barrier
1 Introductions
2 Formulation of the Problem
3 Solution of the Problem
4 Hypersingular Integral Equation
5 Analysis and Discussion
6 Conclusion
References
MS 2 Computational Methods on Fluid-Structure Dynamics for Multiscale Problems
Free Vibration Analysis of Dual-Material-Inflated Torus with Acoustic-Structure Interaction
1 Introduction
2 Shell Theory
3 Mathematical Formulation
4 Results and Discussion
4.1 Stress Analysis
4.2 Free Vibration Analysis
5 Conclusion
6 Funding
References
MS 3 Advances in Structural Vibrations
Analysis of the Skeleton Sled Sliding Motion Induced Vibrations with Different Runner Stiffness’s on an Inclined Ice Track
1 Introduction
2 Experiment of the Skeleton on the Ice Track and Runner Compression Test
3 3D Frequency Analysis for Skeleton Sledge
4 Mathematical Link Model of Resonant Frequencies for the Skeleton and Slider
5 Results and Discussion
6 Conclusions
References
Assessment of High-Speed Train-Induced Vibrations Using Efficient Numerical Models
1 Introduction
2 Numerical Simulation
3 Numerical Results
4 Conclusions
References
Characterization and Validation of Shock Absorbing Hyperelastic Material Using Analytical and Experimental Methods
1 Introduction
2 Time Domain Response Residual
3 Experimental Application
3.1 Development of the FE Model
3.2 FE Model Parameterization and Updating Results
4 Analysis of Full-Scale Elevator Chassis
5 Conclusions
References
MS 4 Active and Passive Structural Control Systems—Seismic Isolation
Thermoelastic Response Analysis of a Shape Memory Alloy Wire Embedded Active Hybrid Bimorph Composite
1 Introduction
2 Design and Modeling
2.1 SMA Material Characterization
2.2 Specimen Configuration
2.3 Finite Element Modeling
3 Results and Discussion
4 Conclusion
References
On the Numerical Modeling of Poroelastic Materials in Acoustic Analysis
1 Introduction
2 Evaluation of Vibroacoustic Models for Poroelastic Media for Airborne Noise in a Plate-Like Application
3 Sound Transmission of Airborne Noise Through a Simplified Model of the Vehicle Front End
4 Single Layer of Poroelastic Material: Absorber
5 Double-Layered System with Poroelastic Material: Spring-mass-system
6 Three-Layered System with Poroelastic Materials
7 Evaluation of Models for Poroelastic Media for Structure-Borne Noise in a Plate-Like Application
8 Summary
References
Frequency-Based Design of the KDamper Concept for Seismic Isolation of Bridges
1 Introduction
2 Overview of the KDamper Concept
2.1 Selection of the KDamper Parameters for Optimal Acceleration Response Under Base Excitation
2.2 Basic Properties of the KDamper
3 Design Response Spectrum, Compatible Ground Motion Spectra, Response Power Spectral Densities, and Mean Square Responses
4 Spectral Driven Optimization of the KDamper Natural Frequency
4.1 Test Case Considered
4.2 Effect of the Isolation Frequency on the Displacement and Acceleration Transfer Functions
4.3 Effect of the Isolation Frequency on the Response Power Spectral Densities
4.4 Effect of the Isolation Frequency on the Root Mean Square Responses and Mean Peak Amplitude Responses
4.5 Numerical Results—Time Histories
5 Conclusions
Appendix
References
Design and Optimization of the KDamper Concept for Seismic Protection of Bridges
1 Introduction
2 The KDamper Concept
2.1 Formulation of Transfer Functions
2.2 Basic Properties of the KDamper
3 Optimal Design Approach for the KDamper
3.1 Harmony Search Algorithm and Optimization Process
3.2 Optimal Acceleration Response Under Base Excitation
3.3 Optimal Relative Displacement Response Under Base Excitation
4 Base Acceleration Excitations
5 Implementation
5.1 Transfer Functions
5.2 Dynamic Responses
6 Conclusions
Appendix 1: Acceleration Response Optimization
Appendix 2: Relative Displacement Response Optimization
References
A Modular Concept for Quite Zone Generation in Transportation Media with Multiple Seat Configurations
1 Introduction
2 Primary Sound Field—Plane Wave Model
3 Model of Head Interference
4 Model of Driven Loudspeakers
4.1 Optimal Volume Velocity
5 Results
5.1 Computational Grid
5.2 Extent and Interaction of Quiet Zones
6 Experimental Setup
7 Conclusions
References
MS 7 Low Frequency Noise and Vibration
Implementation of a Low-Frequency Acoustic Isolation Panel Incorporating KDamper-Based Mounts
1 Introduction
2 Sound Transmission Loss of Panel
2.1 Sound Transmission Loss of a Simply Supported Plate in an Infinite Baffle
2.2 Impedance-Based Approach—Waves on a Flat Surface of Discontinuity
3 KDamper
4 STL Comparison of Vibration Isolation Concepts
5 KDamper Parametric Investigation
6 Conclusions
References
Results from Infrasound Monitoring Using Integrated Sensors Data by Means of a Network Along Multisite Point Over Japan
1 Introduction
2 Infrasound Station Sites at Shikoku, Japan
3 Description of the Instrument
4 Analysis Tools
4.1 Spectral Analysis
4.2 Irregular Array Signal Processing
5 Ambient Noise Level in the Shikoku Island
6 Examples of Observation and Discussion
6.1 Volcano Eruptions
6.2 The Earthquakes
7 Conclusions and Future Works
References
KDamper Concept for Base Isolation and Damping of High-Rise Building Structures
1 Introduction
2 Overview of Conventional Vibration Absorbers and the KDamper Concept
3 Optimal Design Approach for the KDamper
3.1 Basic Properties of the KDamper
4 The KDamper as a Base Absorption Layer
4.1 Initial Fixed Base Structure (iN)
4.2 Conventional Base Isolated Structure (BI)
4.3 Implementation of the TID Combined with a BI (BI-TID)
4.4 The KDamper as a Seismic Absorption Base (BI-KD/KDAB)
5 Selection of Acceleration Excitations
6 Assessment of the Optimal KDamper Parameters for Base Isolated Multi-story Buildings
6.1 Extension of the Optimal KDamper Design to MDoF Structural Systems
6.2 Numerical Application on a 10-Story Building
7 Conclusions
Appendix
References
MS 8 Vibration of Composite Mechanical Structures
Non-uniform Torsional Eigenmodes of FGM Beams
1 Introduction
2 Differential Equation for Non-uniform Torsion Eigenvibration and Its Solution
3 Homogenization of the Spatially Varying Material Properties
4 Numerical Experiments
5 Conclusions
References
Identification of Dynamic Parameters of the Artificial Muscles in Form of the Nylon Springs
1 Introduction
2 Manufacturing of the Nylon Springs
3 Mechanical Properties of the Nylon Spring
3.1 Static Tensile Test
3.2 Dynamic Vibration Test
3.3 Parameters of the Nylon Springs
4 Dynamic System Consisting of Two Nylon Springs
5 Numerical Model of Two Nylon Springs System
6 Conclusions
References
On the Deficiencies of Classical Theories in Predicting Torsional Frequencies of Prismatic Shafts
1 Introduction
1.1 Classical Approaches to Non-uniform Warping Torsion
1.2 The Dynamics of Prismatic Shafts Based on Classical Theories
2 A Generalized Beam Model Based on a Reference Beam Problem
2.1 The Reference Beam Problem for the Cross-Sectional Analysis
2.2 The Generalized Beam Finite Element
3 Examples and Benchmark Problems
3.1 Homogeneous Rectangular Hollow Cross Section
3.2 Homogeneous Unsymmetrical Thin-Walled Multi-cell Cross Section
3.3 Hollow Thin-Walled Box Cross Section Made of Functionally Graded material
4 Conclusion
References
Analysis of Actuator Made of FGM Using New Multiphysical Finite Elements
1 Introduction
2 FEM Equations for Coupled Electro-Thermo-mechanical Analysis
2.1 New Beam/Link FGM Finite Element Equations
3 Numerical Experiment
4 Conclusions
References
MS 9 Flow Induced Vibrations
Self-excited Vibrations of Bladed Wheel Analytical Model with Nozzle Excitation and Dry Friction Damping
1 Introduction
2 Model Description
2.1 Bladed Wheel Model
2.2 Nozzle Excitation
2.3 Van der Pol Self-excitation
2.4 Simulation Parameters
3 Evaluation and Results
3.1 Evaluation Methodology
3.2 Results of Simulations with Absolute Motion Self-excitation
3.3 Results of Simulations with Relative Motion Self-excitation
4 Conclusions
References
A Hybrid Incompressible Boundary Element-Based Reduced-Ordered Aeroelastic Model for Fast Aeroelstic Simulations for Flexible Wing and Turbomachinery Blade Cascade
1 Introduction
2 Hybrid Boundary Element Method for Flow Modeling
3 Beam Element Method for Structural Modeling
4 Coupling and Co-simulation of ROAM
5 Test Case Problems
5.1 Rectangular Wing with Increasing Angle of Attack
5.2 A Rectangular Pitching Wing
6 Conclusion
References
The Flow-Induced Vibrations of Vocal Folds Approximated by the Finite Element Method
1 Introduction
2 Mathematical Model
2.1 Elastic Structure
2.2 ALE Method
2.3 Fluid Flow
2.4 Coupling Conditions
3 Numerical Model
3.1 Elastic Structure
3.2 Fluid Flow
4 Numerical Results
4.1 Experimental Determination of the Flutter Instability Boundary
4.2 Effects of Inlet Boundary Conditions
5 Conclusion
References
How Acoustic Resonances Can Support Self-sustained Oscillations of Acoustic-Mechanical Dynamic System
1 Introduction
2 Methods
2.1 Experimental Set up
2.2 Computational Modelling of the Acoustic Resonances of the System
3 Results
3.1 Numerical Simulations of Acoustic Resonances
3.2 Results of Measurements of Phonation on the Laboratory Model
4 Conclusion
References
Discontinuous Galerkin Method for the Solution of Fluid-Structure Interaction Problems with Applications to the Vocal Folds Vibration
1 Introduction
2 Flow Problem
2.1 Compressible Navier-Stokes Problem in a Time-Dependent Domain
2.2 Discretization of the Flow Problem
3 Dynamic Elasticity
3.1 Formulation of the Elasticity Problem
3.2 Discretization of the Elasticity Problem
4 Realization of the Coupled Problem
4.1 Fluid-Structure Coupling
4.2 Determination of the ALE Mapping
4.3 Algorithm of the Coupled Problem
5 Numerical Experiments
6 Conclusion
References
MS 10 Dynamic Analysis of Structures
Nonlinear Vibrations of Polygonal-Shaped Plates: Use of Conformal Mapping Function
1 Introduction
2 Mapping Functions
3 Transformation of Governing Equations to ζ-Plane
4 Method of Solution
5 Illustration
5.1 Free Linear Vibration
5.2 Free Nonlinear Vibration
5.3 Nonlinear Static Deflection
6 Discussion and Conclusion
References
Natural Frequencies of Rotating Cantilever Plates
1 Introduction
2 Formulation
3 Results
4 Conclusion
References
Understanding the Imminence of Forest Fire Using Laser Doppler Vibrometer
1 Introduction
2 Methodology
3 Experimental Studies
3.1 Results and Discussion
4 Conclusion
References
Dynamic Analysis of a Truncated Dome Placed on an Elliptic Base
1 Introduction
2 The Basic Concept of the CDC-Method
3 Governing Differential Equations
4 Transformation of Equations to u-Variable
5 Method of Solution
6 Specific Illustration
7 Numerical Results
7.1 Free Linear Vibration of the Truncated Dome
7.2 Nonlinear Free Vibration of the Truncated Dome
7.3 Nonlinear Static Analysis of the Truncated Dome
8 Discussion and Conclusion
Appendix 1
Appendix 2
References
MS 11 Vibration Effects in Nature and Technology
Properties of Vibration Fields in a Two-Dimensional Lattice Structure Colliding with an Obstacle
1 Introduction
2 Statement of the Problem
3 Equations of Free Oscillations with Impacts
4 In-Phase Modes in an Isotropic Square Lattice
5 Experimental Stand
6 Impact-Free Movements
7 In-Phase Vibro-Impact Modes of Motion (Claps)
References
The Stationary State of the Granular Material Under the Action of Intense Vibration and Gravity
1 Introduction
2 Formulation of the Problem
3 Momentum Equation
4 The Kinetic Energy Transport Equation
5 General Analytical Solution of the Transport Equations
6 Energy Boundary Conditions on a Vibrating and on a Fixed Plane
7 Power Boundary Conditions on a Vibrating and on a Fixed Plane and the Granular Leidenfrost Effect
8 Statement of Boundary-Value Problems on a Stationary Vibro-Excited Granular Layer
9 A Granular Layer with a Free Surface
10 Examples of Calculations
11 Application to the Experiment with “Maxwell’s Demon” (Competitive Clustering)
12 Conclusion
References
To the Issue of Control Resonant Oscillations of a Vibrating Machine with Two Self-synchronizing Inertial Exciters
1 Introduction
2 Mathematical Model of Vibrating Machine
3 Simulation Results
4 Conclusion
References
On a Model of Interaction of a Vibratory Jaw Crusher’s Working Bodies with the Processed Medium
1 Introduction
2 Design Scheme and Mathematical Model
3 Analysis of the Simulation Results
4 Conclusion
References
Nonlinear Dynamics of a Jaw Crusher Taking into Account the Interaction with the Rock
1 Introduction
2 Analysis of Existing Models
3 Jaw Crusher Mathematical Model with Rock Interactions
3.1 Jaw Simulation
3.2 Accounting for Dynamic Rock Reaction
3.3 Differential Equation of a Jaw Movement
4 Results
5 Conclusions
References
Experiments on Oscillation Control of a Continuum Soft Robotic Manipulator
1 Introduction
2 Robot Description
3 Experiments with Input Pre-filtering
4 Experiments with Closed-Loop Control
5 Conclusions
References
MS 12 Recent Advances in Rotor Dynamics
Critical Speed Analysis and Resonance Margin Promoting for One Helium Turbine Rotor
1 Introduction
2 Rotor Structure and Modeling
2.1 Overall Structure of Helium Turbine Rotor
2.2 Equivalent Modeling of Blades
2.3 Finite Element Model
3 Critical Speed Analysis
3.1 Bearing Stiffness and Damping
3.2 Critical Speed and Resonance Margin
3.3 Error Analysis
4 Effects of Generator Rotor Through Diaphragm Coupling
4.1 Modeling for Generator Rotor and Diaphragm Coupling
4.2 Modal Results with Diaphragm/Flexible Coupling
4.3 Modal Results with Rigid Coupling
5 Conclusions
References
Stiffness Modelling for One Curvic Coupling Considering Contact Details
1 Introduction
2 Theoretical Stiffness Model of Curvic Couplings
2.1 Simplified Model and Deformation Factors
2.2 Tooth Deformation
2.3 Contact Deformation of Tooth Surface
2.4 Flange Deformation
3 Stiffness Characteristics Under Uniformly Distributed Load
3.1 Deformation Distribution Characteristics
3.2 Influence of Axial Force
4 Stiffness Characteristics Under Non-uniformly Distributed Load
4.1 Finite-Element Model
4.2 Non-uniform Load
4.3 Deformation Distribution Characteristics
4.4 Influence of Axial Force
5 Comparison of Three Stiffness Models
6 Conclusions
References
Implementation of ISO Guide to the Expression of Uncertainty in Measurement (ISO-GUM) to Rotational Inertia Determination of a Small Wind Turbine by Acceleration–Deceleration Method
1 Introduction
2 Acceleration–Deceleration Test
3 Uncertainty Analysis via ISO-GUM
4 Description of Experimental Setup
4.1 Instrumentation and Measurement Procedures
5 Experimental Results and Analysis
6 Conclusions and Perspectives
References
Robust Design Method for Dynamics of High-Speed Rotor System with Interface
1 Introduction
2 The Bend Stiffness Loss of the Spline Structure
2.1 The Course of Bend Stiffness
2.2 Stiffness Loss Model
2.3 The Relationship Between the Stiffness Loss and Strain Energy of the Spline
3 The Rotor System Dynamics
3.1 The Stiffness Correction on the Rotor Finite Element Model
3.2 The Influence of Stiffness Loss on the Rotor Dynamics
4 The Robust Design Method for the Rotor with the Joint
4.1 The Robust Design Method Based on the Strain Energy on the Joints
4.2 Numerical Example
5 Conclusion
References
Rotor Connection Structure Interface Damage Control and Robust Design Method for Its Mechanical Properties
1 Introduction
2 Rotor and Connection Structure Features
2.1 Rotor Structure Discontinuity
2.2 Connection Structure and Contact Interface Characteristics
3 Connection Structure and Its Mechanical Characteristic Parameter Dispersion
3.1 Mechanical Properties of the Connection Structure
3.2 Contact Interface Damage Mechanism and Evaluation Parameters
3.3 Rotor Mechanical Properties Dispersion
4 Robust Design of the Connection Structure
4.1 Connection Interface Contact Damage Control Method
4.2 Robust Design of Rotor Connection Structure
5 Conclusion
References
Rotational Excitation Dynamical Model and Micro-vibration Characteristics of Momentum Wheel
1 Introduction
2 Structural Characteristics and Dynamical Model of the Momentum Wheel
2.1 Structural Characteristics
2.2 Dynamical Model of the Momentum Wheel Structural System
3 Micro-vibration Characteristics Under Simulated Rotation
3.1 Model Establishment
3.2 Inherent Characteristic
3.3 Response Characteristics
4 Vibration Characteristics Test
4.1 Inherent Modal Characteristics with No-Speed
4.2 Waterfall Diagram of the Ascent Process
5 Conclusions and Outlook
References
Nonlinear Stability of Turbine and Generator Rotors Applying Hopf Bifurcation Theory
1 Introduction
2 The Model of a Rotor-Bearing-Foundation System for Turbines and Generators
2.1 Rotor and Foundation Model
2.2 Model of Nonlinear Bearings
3 Application of Hopf Bifurcation Theory in the Stability Assessment of Simple and Complex Rotor Systems
3.1 Supercritical and Subcritical Hopf Bifurcations in Simple Rotor-Bearing-Foundation Systems
3.2 Supercritical and Subcritical Hopf Bifurcations in Turbine and Generator Rotor Systems
4 Conclusions
Appendix
Appendix 1. Modelling of the Rotor Using the Transient Transfer Matrix Method
Appendix 2. Formulas for the Application of Hopf Bifurcation Theory
References
MS 13 Vibration Problems in Submerged Floating Tunnel
Preliminary Analysis on Vibration Problems of Submerged Floating Tunnel and Model Test Design
1 Introduction
2 Requirements of the SFT Experimental Model
2.1 Similarity Requirements
2.2 Theoretical Method of the SFT Vehicle-Tunnel Coupled Vibration
3 Design Details of the SFT Model and Sensors Arrangements
3.1 Model Design
3.2 Sensors Arrangement in the Model Test
3.3 Material Parameters and Test Working Cases
4 Test Results and Preliminary Analysis
5 Conclusions and Prospects
References
Methods for Analyzing Seismic Response of Submerged Floating Tunnel and Research Development
1 Introduction
2 Calculation Method for Hydrodynamic Pressure
3 Analysis and Simulation of Seismic Response
3.1 Analysis Method
3.2 Review of Research Status
4 Failure Mode and Aseismic Measure
5 Conclusions and Prospects
References
The Spatial Analytical Method for the Dynamic Response of Submerged Floating Tunnel with Tension Leg Under Vehicle Load
1 Introduction
2 Formulation of Equations
3 Determination of Vibratory Characteristics: Out-of-Plane Problem
4 Numerical Examples and Discussion on the Out-of-Plane Vibration
5 Conclusion and Prospect
References
Design Analysis and Validation of the Submerged Floating Tube Bridge Over the Bjørnefjord
1 Introduction
2 Global Analyses of the Bjørnefjord SFTB
2.1 Environmental Loads on the SFTB
2.2 Dynamic Analysis Methods of a Pontoon-Supported SFTB
3 Code-to-Code Validation of Analysis Tools
4 Model Test Validation of an SFTB
5 Concluding Remarks
References
Considerations on the Behavior of Submerged Floating Tunnel Module During Immersion Stage
1 Introduction
2 Construction Stage Analyses on SFT
2.1 Submerged Floating Tunnel Module (Prototype)
2.2 Ocean Environmental Loads
2.3 Transportation
2.4 Mooring
2.5 Immersion
2.6 Connection
3 Immersion Simulation of SFT Module
3.1 Simulation Models and Outputs
3.2 Set-up Initial Tension Force
3.3 Wave Amplitude and Wave Period
3.4 Current Velocity, Pontoon Payload Capacity, Ballast Water and Contraction Cable
4 Summary
Reference
Vibration Behavior Analysis of Anchor Cables in Submerged Floating Tunnel and Its Application
1 Introduction
2 The Vibration Differential Equation of Anchor Cables
3 Solution of Equation
4 Analysis of Engineering Example
4.1 The Vibration Response Under the Action of Uniform Current
4.2 The Relationship Between the Frequency and Anchor Cable Force
5 Conclusions
References
Hydrodynamic Response of Submerged Floating Tunnel in Combined Wave–Current Flows
1 Introduction
2 Literature Review
3 Physical Model Setup
4 Results
4.1 Decay Tests
4.2 Experimental Observations
4.3 Wave-Current Effects on SFT Motions
4.4 Wave–Current Effects on Tensions
5 Conclusion
References
Preliminary Study on the Behavior of the SFT Qiandao Prototype Against Explosions and Impacts
1 Introduction
2 The SFT Prototype in Qiandao Lake
3 Exceptional Impact Loads and Explosion
3.1 Explosions
3.2 Impacts
4 FE Analysis of the SFT Qiandao Prototype Against Explosions and Impacts
4.1 Geometrical and Material Model
4.2 Discretization of the FE Model
4.3 Boundary Conditions
4.4 Models for Exceptional Loads
4.5 Types of Analysis
4.6 Results of the Analyses
5 Conclusive Remarks
References
Regular Sessions: RS 1 Computational Methods in Vibration Problems and Wave Mechanics
Three-Dimensional Dynamics of Laminated Curved Composite Structures: A Spectral-Tchebychev Solution
1 Introduction
2 Model Development
2.1 Derivation of Boundary Value Problem
2.2 Transformation Approach
2.3 Spectral-Tchebychev Approach
3 Model Validation
3.1 Case Study 1: Straight Laminated Composite Structure
3.2 Case Study 2: Curved Laminated Composite Structure
4 Conclusion
References
Nonlinear Analysis of Shape Memory Alloy Curved Beams Under a Central Concentrated Load
1 Introduction
2 Problem Statement
3 Numerical Examples
3.1 Linearly Elastic Curved Beam
3.2 SMA Curved Beam
4 Conclusions
References
Simulative Study on Effects of Numerical Solution and Contact Parameters of Direct Time Integration Methods Toward Stick-Slip-Related Disk Brake Vibrations
1 Introduction
2 State of the Art
2.1 Brake Creep Groan and Stick-Slip Oscillations
2.2 Brake Noise Simulation
2.3 Direct Time Integration
2.4 Contact Modeling for Stick-Slip Simulation
3 Methodology
3.1 Simulative Approach—Axle Corner Model (ACM)
3.2 Parameter Study
3.3 Test Rig Measurements
4 Results
4.1 Results for ACM Simulations
4.2 Results for Test Rig Measurements
5 Discussion
6 Limitations of This Study
7 Conclusions
References
Nonlinear Response of RC Structures: Statistical Effects of Artificial Ground Motions
1 Introduction
2 Input Generation
3 Reference Structural Models
4 Nonlinear Behavior of Reference Structures Obtained with Standard Time-History Analyses
5 Seismic Fragility Assessment by Incremental Dynamic Analyses
6 Conclusions
References
The Coupled Tube-Mooring System SFT Hydrodynamic Characteristics Under Wave Excitations
1 Introduction
2 Numerical Simulations
2.1 Modelling
2.2 Comparison of Wave Force with Empirical Equation
3 Results and Discussion
3.1 Effect of Submerged Depth
3.2 Effect of BWR
3.3 Effect of Vertical Mooring Stiffness
3.4 Effect of IMA
3.5 Effect of Mooring System Arrangement
3.6 Effect of Pre-tension Distribution
3.7 Effect of Wave Height
3.8 Effect of Wave Period
4 Conclusion
Reference
Modelling Wave Behaviour of Elastic Helical Waveguides
1 Introduction
2 Wave Propagation in a Helical Beam
3 Wave Scattering
3.1 Beam Example
4 Wave and Finite Element Method
4.1 WFE Model
4.2 Free Wave Propagation
4.3 Forced Wave Propagation
4.4 Wave Scattering
5 Numerical Examples and Discussion
5.1 Isotropic Beam with Circular Cross-Section
5.2 Composite Beams
6 Conclusion
References
RS 3 Dynamics of Coupled Problems
Axial and Transverse Vibration of a Cantilever Beam Energy Harvester with a Tip Mass with Axial and Transverse Eccentricity
1 Introduction
2 Modal Analysis
3 Harmonic Forced Response
3.1 Orthogonality Conditions
3.2 Response to Base Excitation
4 Results and Discussion
5 Conclusions
References
Modeling and Optimization of a Flow-Induced Piezoelectric Vibration-Based Energy Harvesting Structure
1 Introduction
2 The Computational Model and Basic Parameters
2.1 The Computational Model of the Fluid System
2.2 The Modeling of the Piezoelectric Vibration-Based Energy Harvesting Beam Structure
3 The Experiment Setup
4 Results and Discussion
4.1 The Vortex Shedding Frequency Comparison
4.2 The Natural Frequency and Vibration Mode of the Beam Structure Comparison
4.3 The Power Output Analysis
5 Conclusions
References
RS 9 Nonlinear Dynamics
Brief Review on the Use of Complex Variables and Conformal Mapping for Elastic Plate Problems—Application to Buckling of Sandwich Plates
1 Introduction
2 Basic Governing Equation
3 Method of Solution
4 Applications
5 Discussion
References
Nonlinear Dynamic (Vibration) Analysis of Irregular-Shaped Sandwich Plates by the Method of Complex Variables and Conformal Mapping
1 Introduction
2 Literature Studies
3 Sandwich Plates
4 Basic Governing Equations
5 Transformation to (Z, Z*) Coordinates
6 Applications
7 Numerical Computations
References
Nonlinear Coupled Flexural-Torsional Vibrations of Flexible Beam
1 Introduction
2 Theoretical Part
2.1 Fixed and Moving Frame
2.2 Kinematic Relations
2.3 Equations of Motion
2.4 Equations Expanded up to Third-Order Terms
2.5 Galerkin Method
3 Free Oscillations Analysis
4 Conclusions
References
Modeling Nonlinear Dynamics of Post-Buckled Flexible Inverted Pendulum
1 Introduction
2 Mathematical Model
3 Simplified Generic Equation
4 Simulation Results: Intense Energy Transfer and Locked Resonance Generation
5 Conclusion
References
RS 13 Sound and Vibration
Analysis of Super High Speed Permanent Magnet Brushless Motor Noise Source and Its Attenuation
1 Introduction
1.1 Noise Regulations Around the World
1.2 The Development and Trend in the Permanent Magnet Brushless Motor Technology
2 Experiment Measurement Method
3 Measurement Results and Analysis
3.1 A-Weighted Sound Power Level
3.2 Correlate the Sound Power Level to the Fundamental Tone (H1)
3.3 Correlate the Fundamental Tone (H1) to Production Parameters
3.4 Correlate LWA to Rotor Level Impeller Surface Runout
4 Discussion
5 Conclusion
References
RS 19 Vibration Problems in Engineering Science
Dynamic Analysis of Composite Curved Beams with Intermediate Diaphragms
1 Introduction
2 Problem Statement and Numerical Implementation
3 Numerical Examples
3.1 Box-Shaped Composite Curved Beam of Rectangular Form
3.2 Box-Shaped Composite Curved Beam of Trapezoidal Form
4 Conclusions
References
Diesel Engines Vibration Analysis Monitoring
1 Introduction, Objectives, and Paper Structure
2 CBM as a Data-Driven Maintenance Process
3 Multiway Data Structures Associated to CBM Vibration Monitoring
4 Case Study
4.1 Data
4.2 Data Analysis Using HJ Biplots
5 Conclusions and Limitations
ANNEX-R Script to Illustrate HJ-Biplots Construction and Plotting##
References
A New Method for Medical Image Archival Based on Chaotic Maps
1 Introduction
2 Methodology
2.1 Chaotic Maps
2.2 Evaluation of Chaotic Mapping
3 Results
4 Conclusion
References
Active Vibration Isolation System for Drone Cameras
1 Introduction
2 Characterization of Drone Vibrations
3 Effect of Vibrations on Image Quality
4 Configuration of Vibration Isolation System
4.1 Configuration Based on the Placement of Active Elements in the Isolation System
4.2 Configuration Based on the DoFs to be Controlled
5 Dynamics of the Stewart Platform
6 Dynamics of the Conventional Passive Isolation and Camera
6.1 Model of Passive Isolation
6.2 Model of Camera
6.3 Experimental Evaluation of the Transmissibility of Passive Isolation with Camera
7 Controller Design
8 Results and Discussions
8.1 Rigid Payload
8.2 Flexible Payload
9 Concluding Remarks
References
Toward Optimal Design of Rainbow Metamaterials
1 Introduction
2 Analytical Modeling Method for the Rainbow Metamaterial
3 Experimental Validation
4 Optimization Strategy
5 Optimization Example
References
RS 20 Vibration Problems in Structural Dynamics, Wave Mechanics, Composite Materials and Fracture Mechanics
Effect of Local Gear Tooth Failures on Gear Mesh Stiffness and Vibration Response of a Single-Stage Spur Gear Pair
1 Introduction
2 Mathematical Modelling
2.1 Analytical Formulation of Gear Mesh Stiffness
2.2 Finite Element Modelling
2.3 Dynamic Model of Single-Stage Spur Gear Pair
3 Results & Discussions
3.1 Comparison of Gear Mesh Stiffness
3.2 Dynamic Response of the Gear Pair
4 Conclusion
References
Long-Wave Motion in Pre-stressed Layered Media
1 Introduction
2 Numerical Results
3 Long-Wave Low-Frequency Approximation
4 Long-Wave High-Frequency Approximation
5 Some Concluding Remarks
References
Impact of Bio-inspired Structural Irregularities on Plate Eigenfrequencies
1 Introduction
2 Materials and Methods
2.1 Solid Plate
2.2 Regular Plates
2.3 Irregular Plates
3 Results
4 Discussion
5 Conclusion
References
Conceptual Design of Hammer Handle Shock Absorbance Measuring Machine
1 Introduction
2 Basic Steps and Components of Proposed CD Method
2.1 Set of Major Components
2.2 Key Models of Conceptual Design
2.3 Cross-Diagonal Matrix
2.4 Data Modification and Application
2.5 Conceptual Design Evaluation
3 Conceptual Design of Hammer Shock Absorbance Test Machine
3.

lgrsnf/4372.pdf

scihub/10.1007/978-981-15-8049-9.pdf

seedings of the 14th International Conference on Vibration Problems : ICOVP 2019

Evangelos J. Sapountzakis,Muralimohan Banerjee,Paritosh Biswas,Esin Inan (eds.)

Sapountzakis, Evangelos J.; Banerjee, Muralimohan; Biswas, Paritosh; Inan, Esin

International Conference on Vibration Problems

Springer Nature Singapore Pte Ltd Fka Springer Science + Business Media Singapore Pte Ltd

Lecture notes in mechanical engineering, Singapore, 2020

Springer Nature, Singapore, 2020

Singapore, Singapore

1st ed. 2021, 2020

2021-10-10