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Macroscopic modeling of open cell foams
Author(s) -
Kirchhof Stephan,
Ams Alfons
Publication year - 2019
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201900238
Subject(s) - spectral density , vibration , process (computing) , stochastic process , statistical physics , stochastic modelling , natural frequency , computer science , mechanics , materials science , physics , mathematics , acoustics , telecommunications , statistics , operating system
Open cell foams are widely used in engineering which includes an application in areas, where vibration excitations can act on the structures. Therefore dynamical properties as eigenfrequencies and natural modes are of great interest. We will discuss the description of the dynamic behavior of open cell foams by stochastic macroscopic models. These are based on a computed tomography scan of the foam, which gives access to parameters and the power spectral density needed for the generation of the stochastic process. The simulation results shall be used to get an estimate of the natural frequencies.