Nové technologie - výzkumné centrum / New Technologies - Research Centre

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Poslední příspěvky

Rendlová, Zdeňka
The dynamic behavior of the fast rotating system in dependence on operating parameters of bearing supports

Typical components of many industrial devices are rotating parts. In case of automotive engines, turbochargers are used in order to increase the engine efficiency. These turbochargers are understood as relatively small rotating parts working in aggressive conditions. Although they are usually...

Lukeš, Vladimír , Zemčík, Hana
Identification of material parameters using homogenization approach and SfePy software

The finite element solver SfePy and Python modules are used to identify the material parameters of the carbon fibers and the epoxy matrix which constitute a unidirectional long-fiber composite. The mathematical model of the heterogeneous structure is base on two-scale homogenization method&#...

Dyk, Štěpán
Vortex induced vibration of 1D beam-type continua

The contribution focuses on the modelling of vibration of 1D beam-type continua induced by cross flow of a fluid. The influence of fluid flow is represented by the harmonic force whose frequency depends on the Strouhal number. Based on the widely used FEM formulation, vector&#...

Karatodorov, Stefan , Mihailov, Valentin I. , Křenek, Tomáš , Grozeva, Margarita
Optical emission spectroscopy of plasma produced by laser ablation of iron sulfide

Optical emission spectroscopy studies are reported of laser ablation plasma from an iron sulphide (FeS) target in vacuum. The plasma emission is characterized with spatial and tempoal resolution. The spectral observations are used to calculate the electron plasma parameters. The electron tem...

Svoboda, Miloš , Beneš, Jan , Vobecká, Lucie , Slouka, Zdeněk
Swelling induced structural changes of a heterogeneous cation-exchange membrane analyzed by micro-computed tomography

3D reconstruction of heterogeneous ion-exchange membranes when swollen in an appropriate electrolyte by micro-computed tomography (μ-CT) can provide important information on structural changes caused by their swelling or shrinkage and used this knowledge along with their electrochemical characteristics for...