Topics in Modal Analysis & Testing, Volume 10: Proceedings of the 34th Imac, a Conference and Exposition on Structural Dynamics 2016, Mains Michael
Автор: Dean R. Culver, Donald J. Nefske, Earl H. Dowell, Shung H. Sung Название: Asymptotic Modal Analysis of Structural and Acoustical Systems ISBN: 1681739879 ISBN-13(EAN): 9781681739878 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 6376.00 р. Наличие на складе: Нет в наличии.
Описание: This book describes the Asymptotic Modal Analysis (AMA) method to predict the high-frequency vibroacoustic response of structural and acoustical systems. The AMA method is based on taking the asymptotic limit of Classical Modal Analysis (CMA) as the number of modes in the structural system or acoustical system becomes large in a certain frequency bandwidth. While CMA requires both the computation of individual modes and a modal summation, AMA evaluates the averaged modal response only at a center frequency of the bandwidth and does not sum the individual contributions from each mode to obtain a final result. It is similar to Statistical Energy Analysis (SEA) in this respect. However, while SEA is limited to obtaining spatial averages or mean values (as it is a statistical method), AMA is derived systematically from CMA and can provide spatial information as well as estimates of the accuracy of the solution for a particular number of modes. A principal goal is to present the state-of-the-art of AMA and suggest where further developments may be possible. A short review of the CMA method as applied to structural and acoustical systems subjected to random excitation is first presented. Then the development of AMA is presented for an individual structural system and an individual acoustic cavity system, as well as a combined structural-acoustic system. The extension of AMA for treating coupled or multi-component systems is then described, followed by its application to nonlinear systems. Finally, the AMA method is summarized and potential further developments are discussed.
Описание: The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on:* Analytical Methods* Biological Systems* Dynamic Systems* Dynamics of Multi-Physical Systems* Structural Control* Simulation
Описание: Th e collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on:* Experimental Techniques<* Smart Sensing* Rotational Eff ects* Dynamic Calibration* Systems & Sensing Technologies* Modal Transducers* Novel Excitation Methods
Описание: 1 Bayesian Treatment of Spatially-Varying Parameter Estimation Problems via Canonical BUS.- 2 Bayesian System Identification of Offshore Platforms.- 3 Bayesian Inference and RJMCMC in Structural Dynamics - on Experimental Data.- 4 Approximate Bayesian Computation by Subset Simulation for Parameter Inference of Dynamical Models.- 5 Determining Model Form Uncertainty of Reduced Order Models.- 6 Uncertainty Analysis of Mechanical Behavior of Functionally Graded Carbon Nanotube Composite Materials.- 7 Interval Uncertainty Analysis of Structure Using CANDECOMP/PARAFAC Decomposition.- 8 Uncertainty Quantification For Nonlinear Reduced-Order Elasto-Dynamics Computational Models.- 9 Estimating Noise Spectra for Data from an Instrumented Building.- 10 Uncertainties in an Application of Operational Modal Analysis.- 11 Stochastic Finite Element Model Updating by Bootstrapping.- 12 Dynamic Identification of Classically Damped Uncertain Structures.- 13 Interval Finite Element Approach for Modal Analysis of Linear Elastic Structures Under Uncertainty.- 14 Model Based Effects Screening of Stringed Instruments.- 15 Innovation Dilemmas, Design Optimization, and Info-Gaps.- 16 Approach to Evaluate and to Compare Basic Structural Design Concepts of Landing Gears in Early Stage of Development Under Uncertainty.- 14 Model Based Effects Screening of Stringed Instruments.- 15 Innovation Dilemmas, Design Optimization, and Info-Gaps.- 16 Approach to Evaluate and to Compare Basic Structural Design Concepts of Landing Gears in Early Stage of Development Under Uncertainty.- 17 Robust Sensor and Exciter Design for Linear Structures.- 18 Robust Model Calibration Using Determinist and Stochastic Performance Metrics.- 19 Designing a Mechanical Latch for Robust Performance.- 19 From Model Calibration and Validation to Reliable Extrapolations.- 20 From Model Calibration and Validation to Reliable Extrapolations.- 21 Application of PCA-SVD Validation Metric to Develop Calibrated and Validated Structural Dynamic Models.- 22 An Enhanced Metropolis-Hastings Algorithm Based on Gaussian Processes.- 23 The Challenge of Dynamic Similarity Assessment.- 24 Model Based Robust Balancing Approach for Rotating Machines.- 25 Statistical Modeling of Wavelet-Transform-Based Features in Structural Health Monitoring.- 26 A Bayesian Framework for Optimal Experimental Design in Structural Dynamics.- Towards the Diagnosis and Simulation of Discrepancies in Dynamical Models.- 28 Effects of Prediction Error Bias on Model Calibration and Response Prediction of a 10-Story Building.- 29 Finite Element Model Updating Techniques of Complex Assemblies with Linear and Nonlinear Components.- 30 Metamodeling of Model Evidence.- 31 Calibration, Validation and Cross-Validation of Nominally Identical Car Subframes.- 32 Modeling and Experimental Test Study of a Multilayer Piezoelectric Actuator.- 33 Study of Correlation Criteria for Spacecraft-Launch Vehicle Coupled Loads Analysis.- 34 Full-field Strain Prediction Applied to an Offshore Wind Turbine.- 35 A State-Input Estimation Approach for Force Identification on an Automotive Suspension Component.- 36 A Pretest Planning Method for Model Calibration for Nonlinear Systems.
Описание: 1 Damage Assessment of Steel Structures Using Multi-Autoregressive Model.- 2. Damage Detection with Symplectic Geometry Spectrum Analysis in Changing Enviroments.- 3 Compressive Sensing Strategies for Multiple Damage Detection and Localization.- 4 Structural Damage Detection Through Vibrational Feature Analysis with Missing Data.- 5 Damage Detection Optimization Using Wavelet Multiresolution Analysis and Genetic Algorithm.- 6 A Novel Acoustoelastic-based Technique for Stress Measurement in Structural Components.- 7 Non-model-based Damage Identification of Plates Using Curvature Mode Shapes.- 8 A Machine Learning Framework for Automated Functionality Monitoring of Movable Bridges.- 9 Development of an Acoustic Sensing Based Structural Health Monitoring Technique for Wind Turbine Blades.- 10 Making Structural Condition Diagnostics Robust to Environmental Variability.- 11 Damage Location by Maximum Entropy Method on a Civil Structure.- 12 Exploring Environmental and Operational Variations in SHM Data Using Heteroscedastic Gaussian Processes.- 13 Vibration Testing for Bridge Load Rating.- 14 Finite Element Model Updating of French Creek Bridge.- 15 Damage Detection of a Bridge Model After Simulated Ground Motion.- 16 Bridge Assessment Using Weigh-In-Motion and Acoustic Emision Methods.- 17 Model-based Estimation of Hydrodynamic Forces on the Bergsoysund Bridge.- 18 Operational Modal Analysis and Model Updating of Riveted Steel Bridge.- 19 Finite Element Model Updating of Portage Creek Bridge.- 20 Full-scale Measurements on the Hardanger Bridge During Strong Winds.- 21 Multi-Shaker Modal Testing and Modal Identification of Hollow-Core Floor System.- 22 Hybrid Time/Frequency Domain Identification of Real Base-Isolated Structure.- 23 The use of OMA for the Validation of the Design of the Allianz Tower in Milan.- 24 Vibration Transmission Through Non-Structural Partitions Between Building Floor Levels.- 25 Inelastic Base Shear Reconstruction from Sparse Acceleration Measurements of Buildings.- 26 Genetic Algorithm use for Internally Resonating Lattice Optimization: Case of a Beam-like Metastructure.- 27 Design of Metamaterials for Seismic Isolation.- 28 Transfer Length Probabilistic Model Updating In High Performance Concrete.- 29 Seismic Behavior of Partially Prestressed Concrete Structures.- 30 Ambient Vibration Testing of A Super Tall Building In Shanghai.- 31 Ambient Vibration Testing Of Two Highly Irregular Tall Buildings In Shanghai.- 32 Estimating Effective Viscous Damping and Restoring Force in Reinforced Concrete Buildings.- 33 Structural Assessment of a School Building in Sankhu, Nepal Damaged Due to Torsional Response During the 2015 Gorkha Earthquake.
Описание: 1 Nonlinear Vibrations of a Beam with a Breathing Edge Crack Using Multiple Trial Functions.- 2 Enforcing Linear Dynamics Through the Addition of Nonlinearity.- 3 Experimental Analysis of a Softening-Hardening Nonlinear Oscillator Using Control-Based Continuation.- 4 Experimental Nonlinear Dynamics of Laminated Quasi-isotropic Thin Composite Plates.- 5 Experimental Identification of a Structure with Internal Resonance.- 6 Shock Response of an Antenna Structure Considering Geometric Nonlinearity.- 7 Investigation on Friction-excited Vibration of Flexibly Supported Shafting System.- 8 Resonant Analysis of Systems Equipped with Nonlinear Displacement-Dependent (NDD) Dampers.- 9 Performance Comparison Between a Nonlinear Energy Sink and a Linear Tuned Vibration Absorber for Broadband Control.- 10 Numerical Assessment of a Tunable Auxiliary Mass Damper Using a Friction Damper.- 11 Experimental and Numerical Investigation of the Nonlinear Bending-Torsion Coupling of a Clamped-Clamped Beam with Centre Masses.- 12 Tracking of Backbone Curves of Nonlinear Systems Using Phase-Locked-Loops.- 13 The Importance of Phase-Locking in Nonlinear Modal Interactions.- 14 A Study of the Modal Interaction Between Three Nonlinear Normal Modes Using a Backbone Curve Approach.- 15 Investigating Nonlinear Modal Energy Transfer in a Random Load Environment.- 16 Nonlinear Modal Testing Performed by Pulsed-air Jet Excitation System.- 17 EMA-FEA Correlation and Updating for Nonlinear Behaviour of an Automotive Heat-shield.- 18 Tutorial on Nonlinear System Identification.- 19 Higher-Order Frequency Response Functions for Hysteretic Systems.- 20 Model Upgrading T0 Augment Linear Model Capabilities Into Nonlinear Regions.- 21 Obtaining Nonlinear Frequency Responses from Broadband Testing.- 22 Experimental Study of Isolated Response Curves in a Two-degree-of-freedom Nonlinear System.- 23 Nonlinear Response of a Thin Panel in a Multi-Discipline Environment: Part I - Experimental Results.- 24 Nonlinear Dynamic Response Prediction of a Thin Panel in a Multi-Discipline Environment: Part II - Numerical Predictions.- 25 Stability Analysis of Curved Panels.- 26 Optimal Representation of a Varying Temperature Field for Coupling with a Structural Reduced Order Model.- 27 Basis Identification for Nonlinear Dynamical Systems Using Sparse Coding.- 28 Interaction Between Aerothermally Compliant Structures and Boundary Layer Transition.- 29 Simultaneous Vibration Isolation and Energy Harvesting: Simulation and Experiment.- 30 Nonlinear Dynamic Interaction In A Coupled Electro-Magneto-Mechanical System: Experimental Study.- 31 Hysteresis Identification Using Nonlinear State-Space Models.- 32 Nonholonomically Constrained Dynamics of Rolling Isolation Systems.- 33 Parameter Estimation on Nonlinear Systems Using Orthogonal and Algebraic Techniques.- 34 Online State and Parameter Estimation of a Nonlinear Gear Transmission System.- 35 Model Updating of a Nonlinear System: Gun Barrel of a Battle Tank.- 36 Experimental Passive Flutter Mitigation Using a Linear Tuned Vibration Absorber.- 37 Adaptive Harmonic Balance Analysis of Dry Friction Damped Systems.- 38 Dynamics of an MDOF Rotor Stator Contact System.
Описание: The collection presents early fi ndings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on:* Structural Health Monitoring* Damage Detection* Numerical Modeling* Mechatronics* System Identifi cation* Active Controls
Описание: 1 Practical Techniques for Scaling of Optically Measured Operating Deflection Shapes.- 2 Prediction of the Coupled Impedance from Frequency Response Data.- 3 Real-Time State Detection in Highly Dynamic Systems.- 4 Stereo-DIC Measurements of Thermal Gradient Effects on the Vibratory Response of Metals.- 5 Modal Testing of a Nose Cone Using Three-Dimensional Scanning Laser Doppler Vibrometry.- 6 A Mathematical Model for Determining the Pose of a SLDV.- 7 Operational Modal Analysis with a 3D Laser Vibrometer Without External Reference.- 8 Scanning LDV Measurement Technology For Vibration Fatigue Testing.- 9 Optically Detecting Wavefronts and Wave Speeds in Water Using Refracto-Vibrometry.- 10 Stochastic Wavenumber Estimation: Damage Detection Through Simulated Guided Lamb Waves.- 11 Use Of Continuous Scanning LDV For Diagnostic.- 12 A Cost Effective DIC System for Measuring Structural Vibrations.- 13 Teaching DSP and Dynamic Measurements at the Graduate Level at Michigan Technological University.- 14 Flipping The Classroom For a Class On Experimental Vibration Analysis.- 15 Lessons Learned From Operational Modal Analysis Courses at the University of Molise.- 16 Authentic Engineering Assignments for an Undergraduate Vibration Laboratory Class.- 17 Vibration and Acoustic Analysis of Acoustic Guitar in Consideration of Transient Sound.- 18 Demarcation for the Coupling Strength in the MODENA Approach.- 19 Vibro-Acoustic Modal Model of a Traction Motor for Railway Applications.- 20 Operational Deflection Shapes of a PWM-fed Traction Motor.- 21 Acoustic Fatigue and Dynamic Behavior of Composite Panels Under Acoustic Excitation.- 22 Evaluation of Microphone Density for Finite Element Source Inversion Simulation of a Laboratory Acoustic Test.- 23 Experimental Mapping of the Acoustic Field Generated by Ultrasonic Transducers.- 24 Enhanced Spin-Down Diagnostics for Nondestructive Evaluation of High-Value Systems.- 25 Performing Direct-Field Acoustic Test Environments on a Sandia Flight System to Provide Data for Finite Element Simulation.- 26 Smooth Complex Orthogonal Decomposition Applied to Traveling Waves in Elastic Media.- 27 Subspace Algorithms in Modal Parameter Estimation for Operational Modal Analysis: Perspectives and Practices.- 28 An Application of Multivariate Empirical Mode Decomposition Towards Structural Modal Identification.- 29 Dynamic Characterization of Milling Plant Columns.- 30 Mixed Force and Displacement Control for Base-Isolation Bearings in RTHS.- 31 Leveraging Hybrid Simulation for Vibration-Based Damage Detection Studies.- 32 Real Time Hybrid Simulation with Online Model Updating on Highly Nonlinear Device.- 33 Discrete-time Compensation Technique for Real-Time Hybrid Simulation.- 34 Evaluating the Effectiveness of a Lodengraf Damping Approach for String Trimmers.- 35 Using Operating Data to Locate & Quantify Unbalance in Rotating Machinery.- 36 Gear Dynamics Characterization by Using Order-Based Modal Analysis.- 37 A Design Framework to Improve the Dynamic Characteristics of Double Planet Planetary Gearsets.- 38 Dynamics and Pareto Optimization of a Generic Synchronizer Mechanism.- 39 Modeling and Characterization of a Flexible Rotor Supported by AMB.- 40 Nonlinear Reduced Order Modeling of a Curved Axi-symmetric Perforated Plate: Comparison with Experiments.- 41 Reduced Order Models for Systems with Disparate Spatial and Temporal Scales.- 42 Using NNMs to Evaluate Reduced Order Models of Curved Beam.- 43 Simulation of Rotor Damping Assembled by Disc Shrink Fits.- 44 Developments in the Prediction of Full Field Dynamics in the Nonlinear Forced Response of Reduced Order System Models.- 45 On the Behaviour of Structures with Many Nonlinear Elements.- 46 Estimation of Instantaneous Speed for Rotating Systems: New Processing Techniques.- 47 Identification of Breathing Cracked Shaft Models from Measurements.
Описание: 1 Improved Cutting Force Measurements in Milling Using Inverse Filtering.- 2 Use of a Depth Camera as a Contactless Displacement Field Sensor.- 3 Uncertainty of Digital Image Correlation with Vibrating Deformable Targets.- 4 Physical Vibration Simulation of an Acoustic Environment with Six Shakers on an Industrial Structure.- 5 Developing Conservative Mechanical Shock Specifications.- 6 Force Limited Vibration using the Apparent Mass Method.- 7 Harmonic Force Excitation Analysis of a Small-Body Asteroid/Satellite System.- 8 A Study on the Dynamic Interaction of Shock Response Fixtures and Test Payload.- 9 Modal Analyses and Experimental Verifications of Joined-wing Configurations.- 10 Modal Testing of James Webb Space Telescope (JWST) Optical Telescope Element (OTE).- 11 Quantification of Dynamic Differences Between Boundary Conditions for Environment Specification Improvement.- 12 Modal Updating of Tail of a Military Helicopter.- 13 Modeling of High Frequency Shock Tests.- 14 A Novel Method to Correlate a Rocket Launcher Finite Element Model Using Experimental Modal Test Measurements and Identification Algorithms.- 15 Numerical Studies on the Reduced Order Modeling of Frictionless Joint Contact Interfaces.- 16 Structural Design with Joints for Maximum Dissipation.- 17 A Hybrid Piezoelectric and Electrostatic Vibration Energy Harvester.- 18 Design of Scaled-Down Composite I-beams for Dynamic Characterization in Subcomponent Testing of a Wind Turbine Blade.
Описание: Chapter 1.Fluid-structure Interaction in a Labyrinth gas Seal Coupled to a Flexible Stator.- Chapter 2.Modal Analysis of Tower Crane with Cracks by the Dynamic Stiffness Method.- Chapter 3.High-Noise High-Speed Footage Data in Experimental Modal Analysis.- Chapter 4.Morlet-Wave Damping Identification - Application to High-Speed Video.- Chapter 5.Fluid-coupled Vibration Control Inspired by Dragonfly Wings.- Chapter 6.Improving Modal Parameter Estimation by Complementary Output-Output Relations.- Chapter 7.Operational Modal Analysis in Frequency Domain using Gaussian Mixture Models.- Chapter 8.Understanding Modal Vectors.- Chapter 9.Best Practices for Using Order-Based Modal Analysis for Industrial Applications.- Chapter 10. Could the Veering Phenomenon be a Mechanical Design Instrument?.- Chapter 11. Impulse Excitation of Piezoelectric Patch Actuators for Modal Analysis.- Chapter 12. Modal Parameter Estimation in Multi-patch Operational Modal Analysis: Perspectives and Approaches.- Chapter.
Описание: 1 Verification of Experimental Component Mode Synthesis in the Sierra Analysis Framework.- 2 Multi-DoF Interface Synchronization of Real-Time-Hybrid-Tests Using a Recursive-Least-Squares Adaption Law: A Numerical Evaluation.- 3 Controls Based Hybrid Sub-structuring Approach to Transfer Path Analysis.- 4 Force Identification Based on Subspace Identification Algorithms and Homotopy Method.- 5 Response DOF Selection for Mapping Experimental Normal Modes-2016 Update.- 6 Experimental Modal Substructuring with Nonlinear Modal Iwan Models to Capture Nonlinear Subcomponent Damping.- 7 A Modal Model to Simulate Typical Structural Dynamic Nonlinearity.- 8 Optimal Replacement of Coupling DoFs in Substructure Decoupling.- 9 State-Space Substructuring With Transmission Simulator.- 10 Applying the Transmission Simulator Techniques to the Ampair 600 Wind Turbine Testbed.- 11 Effect of Interface Substitute when Applying Frequency Based Substructuring to the Ampair600 Wind Turbine Rotor Assembly.- 12 Improving Floor Vibration Performance Using Interstitial Columns.- 13 Probabilistic Model Updating of Controller Models for Groups of People in a Standing Position.- 14 Fundamental Frequency of Lightweight Cold-Formed Steel Floor Systems.- 15 Fundamental Studies of AVC with Actuator Dynamics.- 16 Mitigating Existing Floor Vibration Issues in a School Renovation.- 17 Vibration Serviceability Assessment of An In-service Pedestrian Bridge Under Human-Induced Excitations.- 18 Numerical and Experimental Studies on Scale Models of Lightweight Building Structures.- 19 A Wavelet-based Approach for Generating Individual Jumping Loads.- 20 A Numerical Round Robin for the Prediction of the Dynamics of Jointed Structures.- 21 A Method to Capture Macroslip at Bolted Interfaces.- 22 A Reduced Iwan Model That Includes Pinning for Bolted Joint Mechanics.- 23 Nonlinear Vibration Phenomena in Aero-engine Measurements.- 24 Instantaneous Frequency and Damping from Transient Ring-Down Data.- 25 Explicit Modelling of Microslip Behaviour in dry Friction Contact.- 26 Modal Testing Through Forced Sine Vibrations of a Timber Footbridge.- 27 Damping Characteristics of a Footbridge - Mysteries and Truths.- 28 A Critical Analysis of Simplified Procedures for Footbridges' Serviceability Assessment.- 29 Human-Induced Vibrations of Footbridges: The Effect of Vertical Human-Structure Interaction.- 30 Nonlinear Time-Varying Dynamic Analysis of a Multi-Mesh Spur Gear Train.- 31 Energy Dissipation of a System with Foam to Metal Interfaces.- 32 Nonlinear System Identification of Mechanical Interfaces Based on Wave Scattering.- 33 Studies of a Geometrical Nonlinear Friction Damped System Using NNMs.- 34 Scale-Dependent Modeling of Joint Behavior.- 35 Robust Occupant Detection Through Step-Induced Floor Vibration By Incorporating Structural Characteristics.- Assessment of Large Error Time-Differences for Localization in a Plate Simulation.- 37 Assessment of Large Error Time-Differences for Localization in a Plate Simulation.- 37 Gender Classification Using Underfloor Accelerometry.- 38 Human-structure Interaction and Implications.- 39 Study of Human-Structure Dynamic Interactions.- 40 Characterisation of Transient Actions Induced by Spectators on Sport Stadia.- 41 Recent Issues on Stadium Monitoring and Serviceability: a Review.- 42 Characterising Randomness in Human Actions on Civil Engineering Structures.- 43 Optimal Restraint Conditions for the SID-IIs Dummy with Different Objective Functions.- 44 A Comparison of Common Model Updating Approaches.- 45 Experimental Coupling and Decoupling of Engineering Structures Using Frequency-based Substructuring.- 46 New FRF Based Methods for Substructure Decoupling.- 47 Experimental Determination of Frictional Interface Models.- 48 Effects of Experimental Methods on the Measurements of a Nonlinear Structure.- 49 Stress Waves Propagating Through Bolted Joints.- 50 A Comparison of Reduced Order Modeling Techniques Used in Dynamic
Описание: Special Topics in Structural Dynamics, Volume 6: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics, 2017, the sixth volume of ten from the Conference brings together contributions to this important area of research and engineering.
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