Dynamics of Coupled Structures, Volume 1

This first volume of eight from the IMAC-XXXII 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 Structural Dynamics, including papers on:

• Linear Systems
• Substructure Modelling
• Adaptive Structures
• Experimental Techniques
• Analytical Methods
• Damage Detection
• Damping of Materials & Members
• Modal Parameter Identification
• Modal Testing Methods
• System Identification
• Active Control
• Modal Parameter Estimation

• Processing Modal Data

  Includes supplementary material: sn.pub/extras

  Klappentext

This critical collection examines a range of the dynamics of coupled structures, from reduced order models to industrial applications of substructuring to experimental studies of joints and joined structures, as presented in early findings and case studies from the Proceedings of the 32nd IMAC, A Conference and Exposition on Structural Dynamics, 2014. The collection includes papers in the following general technical research areas:

· Substructuring and the Ampair Wind Turbine Test Bed

· Experimental Dynamic Substructuring

· Reduced Order Models

· Experimental Studies of Joints and Joined Structures

· Analytical/Numerical Modeling of Joints

· Industrial Applications of Substructuring

Inhalt

Experimental-Analytical Dynamic Substructuring of Ampair Testbed: a State-Space Approach.- Experimental Dynamic Substructuring of the Ampair Wind Turbine Test Bed.- Are Rotational DoFs Essential in Substructure Decoupling?.- Validation of Blocked-force Transfer Path Analysis With Compensation for Test Bench Dynamics.- Towards Dynamic Substructuring Using Measured Impulse Response Functions.- Hybrid Modeling of Floating Raft System by FRF-based Substructuring Method With Elastic Coupling.- Consideration of Interface Damping in Shrouded Mistuned Turbine Blades.- Coupling Elements for Substructure Modelling of Lightweight Multi-Storey Buildings.- Deformation Mode Selection and Orthonormalization for an Efficient Simulation of the Rolling Contact Problem.- Towards a Parallel Time Integration Method for Nonlinear Systems.- Efficient Model Order Reduction for the Nonlinear Dynamics of Jointed Structures by the use of Trial Vector Derivatives.- A Substructuring Method for Geometrically Nonlinear Structures.- Craig-Bampton Substructuring for Geometrically Nonlinear Subcomponents.- Parameterized Reduced Order Models Constructed Using Hyper Dual Numbers.- Efficient Stochastic Finite Element Modeling Using Parameterized Reduced Order Models.- Application of a Novel Method to Identify Multi-axis Joint Properties.- Experimental Identification and Simulation of Rotor Damping.- An Approach to Identification and Simulation of the Nonlinear Dynamics of Anti-vibration Mounts.- Microslip Joint Damping Prediction Using Thin Layer Elements.- Variability and Repeatability of Jointed Structures With Frictional Interfaces.- Evaluation of North American Vibration Standards for Mass-timber Floors.- Improving Model Predictions Through Partitioned Analysis: A Combined Experimental and Numerical Analysis.- Model Reduction and Lumped Models for Jointed Structures.- A Complex Power Approach to Characterise Joints in Experimental Dynamic Substructuring.- Prediction of Dynamics of Modified Machine Tool by Experimental Substructuring.- Static Torsional Stiffness From Dynamic Measurements Using Impedance Modeling technique.- Full Field Dynamic Strain on Wind Turbine Blade Using Digital Image Correlation Techniques and Limited Sets of Measured Data from Photogrammetric Targets.- Comparison of Multiple Mass Property Estimation Techniques on SWIFT Vestas 27 Wind Turbine Nacelles and Hubs.- Overview of the Dynamic Characterization at the DOE/SNL SWiFT Wind Facility.- Artifical and Natural Excitation Testing of SWIFT Vestas 27 Wind Turbines.- Effects of Boundary Conditions on the Structural Dynamics of Wind Turbine Blades. Part 1: Flapwise Modes.- Effects of Boundary Conditions on the Structural Dynamics of Wind Turbine Blades. Part 2: Edgewise Modes.- Modal Testing and Model Validation Issues of SWiFT Turbine Tests.- Development of Simplified Models for Wind Turbine Blades With Application to NREL 5MW Offshore Research Wind Turbine.- A Wiki for Sharing Substructuring Methods, Measurements and Information.- Novel Parametric Reduced Order Model for Aeroengine Blade Dynamics.- Practical Seismic FSSI Analysis of Multiply-supported Secondary Tanks System.- DEIM for the Efficient Computation of Contact Interface Stresses.- Amplitude Dependency on Dynamic Properties of a Rubber Mount.- Model Order Reduction for Geometric Nonlinear Structures with Variable State-dependent Basis.- Stochastic Iwan-type Model of a Bolted Joint: Formulation and Identification.