Engineering Mechanics

Proceedings Vol. 15 (2009)

ENGINEERING MECHANICS 2009

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 11 – 14, 2009, Svratka, Czech Republic

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Editors: Jiří Náprstek and Cyril Fischer

ISBN 978-80-86246-35-2 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

On modeling process of expression of the fluid saturated medium in screw compression machine

E. Rohan, R. Cimrman, J. Očenášek
pages 1103 - 1111, full text

The paper deals with modeling the process of oil expression and ﬁltration in rotating screw pressing machine. In this pilot study we consider linearized behavior of the compressed two-phase medium described by the Biot model of the poroelastic ﬂuid-saturated material. The aim of the modeling reported here is to understand inﬂuences of various model parameters on the pressure and strain distributions during short stroke compression in the expression machine, which is featured by a small angle of the rotor rotation. In particular the boundary conditions and the model structure is discussed, also the friction phenomenon and accounted for. The model is implemented using the ﬁnite element method code SfePy. Numerical illustrations of the computer simulation are given.

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All papers were reviewed by members of the scientific committee.

Engineering Mechanics

International Conference

Proceedings Vol. 15 (2009)

ENGINEERING MECHANICS 2009