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International Conference on Structural Engineering Dynamics – ICEDyn 2009
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Modelling of Damping Force of Dynamically Loaded Specimen of Polyurethane Foam in Dependence on Its Density
David Cirkl
11Technical University of Liberec, Department of Mechanical Engineering, Studentska 2, Liberec 460 01, Czech Republic
Abstract
Article deals with measurement and modelling of damping force of polyurethane foam specimen being compressed. The specimens were taken from car seats and differ by material density. For modelling of damping force during harmonical kinematical excitation the explicit formula is used. Its parameters are found by means of method based on evaluation of energy dissipated during one loading cycle and also on evaluation of position of damping force extreme.
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Copyright © 2010 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
