Nonlinear Structures & Systems, Volume 1: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020

Nonlinear Structures & Systems, Volume 1: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics, 2020, the first volume of eight 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 Nonlinear Dynamics, including papers on: Nonlinear Reduced-order Modeling Jointed Structures: Identification, Mechanics, Dynamics Experimental Nonlinear Dynamics Nonlinear Model & Modal Interactions Nonlinear Damping Nonlinear Modeling & Simulation Nonlinearity & System Identification.

Table of Contents:
Preface 1 Convergence Study on the C-Beam Using Joint Modes Based on Trial Vector Derivatives 2 Semi Hyper-Reduction for Nonlinear Surface Loads on Finite Element Structures by the Use of Stress Modes 3 Parameter Identification of a Linear Substitution Model for Nonlinear Contact and Damping Inside Lap Joints Using Distributed Optimization 4 Flexible Multibody Dynamics: Which Terms of the Equations of Motion Have to Be Considered for Which Problem? 5 Application of the Bouc-Wen Model to Bolted Joint Dynamics 6 Some Aspects of Using the Random Decrement Technique for Nonlinear Systems 7 Investigation of String Motions of Bowed String Instruments: A Finite Element Approach 8 FreeDyn: A Free, Flexible and State of the Art Multibody Simulation Package for Education, Research and Industrial Applications 9 Force Probing to Access Potential Energy 10 Modeling and Experimental Validation of a Pylon Subassembly Mockup with Multiple Nonlinearities 11 Comparison Between Control-Based Continuation and Phase-Locked Loop Methods for the Identification of Backbone Curves and Nonlinear Frequency Responses 12 Implementing the Restoring Force Surface Method to Fit Experimentally Measured Modal Coupling Effects 13 Identification of Backbone Curves and Nonlinear Frequency Responses using Control-based Continuation and Local Gaussian Process Regression 14 Model Correlation to a Nonlinear Bolted Structure Using Quasi-Static Modal Analysis 15 Numerical Continuation of Periodic Orbits for Harmonically Forced Nonlinear Systems with Iwan Joints 16 A Digital Absorber for Nonlinear Vibration Mitigation 17 Control-Based Continuation of Nonlinear Structures Using Adaptive Filtering 18 Tuning of Finite Element Model Parameters to Match Nonlinear Reduced Order Models 19 Towards an Understanding of the Transient Behavior of the Five-Parameter Iwan-Type Model 20 On the Solution of Nonlinear Algebraic Equations Following Periodic Forced Response Analysis of Nonlinear Structures Using Different Nonlinear Solvers 21 Vibration-Based Bolt Tension Estimation for Multi-bolt Joints 22 Experimental Application of Control-Based-Continuation for Characterization of Isolated Modes on Single- and Multiple-Degree-of-Freedom Systems 23 Nonlinear Function Selection and Parameter Estimation of Structures with Localised Nonlinearities, Part 1: Numerical Analysis 24 Tutorial on Nonlinear Reduced Order Modeling for Nominally Cyclic Symmetric Structures and Rotating Machinery 25 Excitation Techniques for Nonlinear Dynamic Systems: A Summary 26 Flutter of Double-Bay Panels with Finite Midbay Stiffness 27 Nonlinear System Identification of a Jointed Structure Using Full-Field Data: Part II Analysis 28 Control Parameters in Non-linear Properties of Linear Guideway in Lateral Direction 29 Inferring Unstable Equilibrium Configurations from Observed Dynamics 30 Bolt Preload Loss Due to Modal Excitation of a C-Beam Structure 31 Nonlinear Dynamic Analysis of Bolted Joints: Detailed and Equivalent Modelling 32 The Relevance of Nonlinear Normal Modes for Randomly Excited Nonlinear Mechanical Systems 33 Analysis of an Actuated Frictional Interface for Improved Dynamic Performance 34 Vibration Reduction of a Structure by Using Nonlinear Tuned Vibration Absorbers 35 Simulation-Free Reduction Basis Interpolation to Reduce Parametrized Dynamic Models of Geometrically Non-linear Structures 36 Experimental Spectral Submanifold Reduced Order Models from Machine Learning 37 Development of an Experimental Rig for Emulating Undulatory Locomotion 38 Identification and Modeling of a Variable Amplitude Fatigue Experiment Apparatus with Damaged Beam Specimen 39 Higher-Order Decompositions for Modal Identification and Model Order Reduction 40 Utilizing Modal Testing for Monitoring the Structural Health of Wind Tunnel Facility Hardware 41 An Efficient Coupled Modal Quasi-static Approach for Characterizing Non-linear Modal Properties of Prestressed Structures 42 An Assessment of the Applicability and Epistemic Uncertainties Inherent to Different Classes of Friction Models for Modeling Bolted Interfaces 43 Hyper-Reduction Approaches for Contact Modeling with Small Tangential Displacements: Applications for a Bolted Joint 44 Fatigue Damage of a Single-Edge Notched Beam Specimen Under Variable Amplitude Loading with Similar Probabilistic and Cycle Counting Statistics.

About the Author :
Gaëtan Kerschen, Department of Aerospace and Mechanical Engineering, University of Liège, Liège, Belgium. Matthew R.W. Brake, Department of Mechanical Engineering, Rice University, Houston, USA. Ludovic Renson, Merchant Venturers Building, University of Bristol, Bristol, UK.