Topics in Modal Analysis & Testing, Volume 8: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020

Topics in Modal Analysis & Testing, Volume 8: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics, 2020, the eighth volume of nine from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Modal Analysis, including papers on: Operational Modal & Modal Analysis Applications Experimental Techniques Modal Analysis, Measurements & Parameter Estimation Modal Vectors & Modeling Basics of Modal Analysis Additive Manufacturing & Modal Testing of Printed Parts.

Table of Contents:
Preface 1 Modal Analysis on a Wind Turbine Blade Based on Wind Tunnel Experiments 2 An Investigation of Vibrational Characteristics of Lap Joints Using Experimental and Analytical Methods 3 Using Strain Gages as References to Calculate Free-Free Frequency Response Functions 4 A Principle for Obtaining Pragmatic Uncertainty Bounds on Modal Parameters 5 On Partitioning of an SHM Problem and Parallels with Transfer Learning 6 An Ontological Approach to Structural Health Monitoring 7 Passive Aeroelastic Tailored Wing Modal Test Using the Fixed Base Correction Method 8 Nonlinear Normal Mode Estimation with Near-Resonant Steady State Inputs 9 Automatic Modal Parameter Identification with Methods of Artificial Intelligence 10 A Single Step Modal Parameter Estimation Algorithm: Computing Residues from Numerator Matrix Coefficients of Rational Fractions 11 Improved Expansion Results Using Regularized Solutions 12 Expansion of Coupled Structural-Acoustic Systems 13 Expansion Methods Applied to Internal Acoustic Problems 14 Scaling an OMA Modal Model of a Wood Building Using OMAH and a Small Shaker 15 Quantitative Study on the Modal Parameters Estimated Using the PLSCF and the MITD Methods and an Automated Modal Analysis Algorithm 16 Empirical Models for the Health Monitoring of High-Rise Buildings: The Case of Palazzo Lombardia 17 Towards Population-Based Structural Health Monitoring, Part II: Heterogeneous Populations and Structures as Graphs 18 Developing a Correlation Criterion (SpaceMAC) for Repeated and Pseudo-repeated Modes 19 Subsecond Model Updating for High-Rate Structural Health Monitoring 20 Phase Quadrature Backbone Curve for Nonlinear Modal Analysis of Nonconservative Systems 21 Preliminary Results of Vibration Measurements on a Wind Turbine Test Bench 22 Feasibility for Damage Identification in Offshore Wind Jacket Structures Through Numerical Modelling of Global Dynamics 23 Use of Operational Modal Analysis to Identify Systems with Oscillatory Masses 24 OMA-Based Modal Identification and Response Estimation of a Monopile Model Subjected to Wave Load 25 A Concept for the Estimation of Displacement Fields in Flexible Wind Turbine Structures 26 Towards Population-Based Structural Health Monitoring, Part III: Graphs, Networks and Communities 27 Utilization of Experimental Data in Elastic Multibody Simulation: Case Study on the Ampair 600 Turbine Blade 28 On the Use of PVDF Sensors for Experimental Modal Analysis 29 Predicting Tool Wear Using Linear Response Surface Methodology and Gaussian Process Regression 30 Computer Aided Measurement Uncertainty Calculation by Modern DAQs for Raw Acceleration and Force Data in Modal Analysis 31 Towards Population-Based Structural Health Monitoring, Part VII: EOV Fields – Environmental Mapping 32 Investigation of Resistive Forces in Variable Recruitment Fluidic Artificial Muscle Bundles 33 Numerical and Experimental Study on the Modal Characteristics of a Rotor Test Rig 34 A Comparison of Different Boundary Condition Correction Methods 35 Deflection Shape Balancing: An Alternative to Modal Balancing 36 Real-Time Theoretical and Experimental Dynamic Mode Shapes for Structural Analysis Using Augmented Reality 37 A Bottom-Up Approach to FE Model Updating of Industrial Structures 38 Shaft Bending to Zero Nodal Diameter Disc Coupling Effects in Rotating Structures Due to Asymmetric Bearing Supports 39 Dynamic Characterization of a Pop-Up Folding Flat Explorer Robot (PUFFER) for Planetary Exploration 40 A Framework for the Design of Rotating Multiple Tuned Mass Damper 41 Operational Modal Analysis of Wind Turbine Drivetrain with Focus on Damping Extraction 42 Investigation of Viscous and Friction Damping Mechanisms in a Cantilever Beam and Hanger System 43 Detecting Nonsynchronous Heart Cells from Video – An Unsupervised Machine Learning Approach.