Modelling of Damping Force of Dynamically Loaded Specimen of Polyurethane Foam in Dependence on Its Density

Cirkl, David

doi:https://doi.org/10.3233/SAV-2010-0533

Shock and Vibration

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International Conference on Structural Engineering Dynamics – ICEDyn 2009

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Volume 17 | Article ID 937837 | https://doi.org/10.3233/SAV-2010-0533

Modelling of Damping Force of Dynamically Loaded Specimen of Polyurethane Foam in Dependence on Its Density

David Cirkl¹

Received17 Jun 2010

Accepted17 Jun 2010

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.

Copyright

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.

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