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2 Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2 2002

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Modelová náhrada složitých tvarových struktur

Szweda J., Karásek T.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2002

z. 19

143-146

In this paper is shown methodology how to create a relatively small but at the same time accurate finite element model of the big models with shape difficulties. Dimensionality criterion is total number of degrees of freedom. Principle of simplification is similar to principle of macroelements. For solving was used program ANSYS, work was made with assistance of project of MSMT CEZ:J 17/98:2724019.

Bending of the layered conveyer belt

Podešva J., Karásek T.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2002

z. 19

131-134

The flat conveyer belt can be used for transport of material in capsulated form. If both edges of the belt are clasped together, the material is rounded into closed volume. Then, during transport, the material can not be dumped. The important question is what is the rounded area because this determines the amount of transported material. Also the proportions of the clasped belt (especially horizontal width) have the importance for the general configuration of the transport device. The task was solved via computer modelling using the finite element method. There are several inputs for the modelling. The testing of material properties (the stress-strain curve) and measured deformed shape of the belt under the gravitation forces. The first was used to build the model, the second to verify it. The result of the modelling is 1) the deformed shape of the clasped belt, 2) the reaction forces in the belt edges connection.