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Full Description
The investigations of multiscale problems in multibody system contacts is a most interesting and timely topic which is the subject of intensive research for more than a decade. Many questions have already been answered and the mechanically sound description and simulation is increasingly being applied to practical engineering problems. The IUTAM Symposium on "Multiscale Problems in Multibody System Contacts" in Stuttgart, Germany which was held February 20-23, 2006 facilitated discussions between researchers active in the ?eld and enabled us to review the current state of the subject, and to identify the important topics which require further e?ort. Multiscale problems occur very naturally in contact mechanics. Typically thecontactforcesandstressesareveryhighandthey aretransmittedwithina veryshortperiodoftime.This leadstoquestions,e.g.howtheslowrigidbody motion and the fast motion changes can be considered simultaneously or how interface e?ects couple with wave propagation and the large-scale motion. The purpose of the symposium was to provide a basis for discussion and exchange of new concepts and ideas between scientists from all over Europe and the world. Emphasis was placed also on sharing algorithms and concepts with young researchers who only recently entered the ?eld of mechanical c- tacts.
Contents
Multi-Rate Time Integration for Large Scale Multibody System Models.- Multiscale Analysis of a Cantilever with a Contact Boundary.- Frictional Impact of Planar Deformable Bodies.- Parallel Load Balanced Particle Simulation with Hierarchical Particle Grouping Strategies.- Analogous Non-Smooth Models of Mechanical and Electrical Systems.- Numerical Modeling of Paper Machine Roll Contact with Regenerative Out-Of-Roundness Excitation.- Discrete Element Method in Simulation of Granular Materials.- A Dynamical Model for the Plane Contact with Rigid Contact Areas.- Multibody Analysis of Axially Elastic Rod Chains.- On a Continuous Transfer of History Variables for Frictional Contact Problems Based on Interpretations of Covariant Derivatives as a Parallel Translation.- First Integrals of Equations of Motion of a Heavy Rotational Symmetric Body on a Perfectly Rough Plane.- Complementary Models for Log Grinding.- The Admissible Set for a Robotic System with Unilateral Constraint.- Contact Modelsfor Very Loose Granular Materials.- A Multigrid Approach in the Numerical Problem of Tangential Contact.- Rigid and Quasi-Rigid Theories of Granular Media.- Lateral Impacts on Flexible Beams in Multibody Dynamics Simulations.- Contact Indentations Determined by a Direct Super Finite Element Approach.- Dynamic Analysis of Intermittent-Motion Mechanisms Through the Combined Use of Gauss Principle and Logical Functions.- Multibody Modeling of Pantographs for Pantograph-Catenary Interaction.- Advances in Discrete Time Transfer Matrix Method of Multibody System.- Impact Studies of Gears in Combustion Engines.- Comparison of Building Collapse Simulation Results From Finite Element and Rigid Body Models.- Computational Analysis and Experimental Investigation of Impacts in Multibody Systems.- Eccentric Flows Registered by DPIV in a Model of Silo.- Regularization of 2D Frictional Contacts for Rigid Body Dynamics.- Micromechanics of Particle Adhesion.- Experience and Simulation in Dynamic Systems with Discontinuities.- Impacts on Beam Structures: Interactions of Wave Propagation and Global Dynamics.
