[en] Motivated by the current demands in high-performance structural analysis, and by a desire to better model systems with localized nonlinearities, analysts have developed a number of different approaches for modelling and simulating the dynamics of a bolted-joint structure. However, the types of conditions that make one approach more effective than the others remains poorly understood due to the fact that these approaches are developed from fundamentally and phenomenologically different concepts. To better grasp their similarities and differences, this research presents a numerical round robin that assesses how well three different approaches predict and simulate a mechanical joint. These approaches are applied to analyze a system comprised of two linear beam structures with a bolted joint interface, and their strengths and shortcomings are assessed in order to determine the optimal conditions for their use.
Disciplines :
Mechanical engineering
Author, co-author :
Gross, J.; Institute of Nonlinear Mechanics, University of Stuttgart, Stuttgart, Germany
Armand, J.; Vibration University Technology Centre, Imperial College London, London, United Kingdom
Lacayo, R.M.; Component Science and Mechanics, Sandia National Laboratories, Albuquerque, United States
Reuss, P.; Institute of Nonlinear Mechanics, University of Stuttgart, Stuttgart, Germany
Salles, Loïc ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Vibration University Technology Centre, Imperial College London, London, United Kingdom
Schwingshackl, C.W.; Vibration University Technology Centre, Imperial College London, London, United Kingdom
Brake, M.R.W.; Component Science and Mechanics, Sandia National Laboratories, Albuquerque, United States
Kuether, R.J.; Component Science and Mechanics, Sandia National Laboratories, Albuquerque, United States
Language :
English
Title :
A numerical round robin for the prediction of the dynamics of jointed structures
Publication date :
2016
Event name :
34th IMAC, A Conference and Exposition on Structural Dynamics 2016
Event place :
Orlando, Usa
Event date :
25-01-2016 => 28-01-2016
Audience :
International
Main work title :
Dynamics of Coupled Structures - Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016
Editor :
Rixen, Daniel ; Université de Liège - ULiège > Département d'aérospatiale, mécanique et matériaux (ASMA) > LTAS - Dynamique des structures
This work was funded by Sandia National Laboratories. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.Special thanks is given to Professor Matthew Allen at the University of Wisconsin-Madison for his insights on the use of Iwan models in numerical simulation, and for his guidance in the analysis of the dynamic response results to compare their modal damping behaviours. Thanks is given to Dr. Timothy Truster from the University of Tennessee for his suggestions on the directed course of this research during the latter half of the Institute.Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporations, for the U.S. Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94AL85000.
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