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33 313 (0,099s) •

Result

Correct and incorrect contact of screw machine rotors and leakage flow modelling

This contribution deals with the analysis of the correct and incorrect contact of the teeth of machine rotors created with screw surfaces. Both surfaces touch each other at the curve by the correct contact. The curve

BK - Mechanika tekutin

  • 2005
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  • D
Result

Mathematical modelling and numerical simulation of a wheelset with a hollow shaft travelling through a curved track

This paper summarizes the forces that develop in the contact patch between the wheel and rail in a railway vehicle. The ways that these forces govern the bahaviour of a vehicle running on a straight and curved track are explained. T...

BI - Akustika a kmity

  • 2005
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  • D
Result

Studies of wheel-rail contact conditions in curves of small radius.

Article deals with the theoretical possibilities of the influence of the wheel-rail contact conditions using computational simulations and summaries reached results by using special railhead profiles in curves of small radii in real...

JO - Pozemní dopravní systémy a zařízení

  • 2009
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  • D
Result

Contribution to modelling of screw surfaces contact

screw surfaces with parallel axes, which has a correct contact in the curve of axeschanges into a skew position and the curve contact changes into contact in the point and the originally relative rolling ...

BK - Mechanika tekutin

  • 2008
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  • D
Result

An approach for the creep-curve assessment using a new rail tribometer

in the contact. A methodology for assessing creep curve parameters was proposed, utilizing both analytical and numerical models of the contact. The experiments were performedThe friction properties of the wheel-rail co...

Mechanical engineering

  • 2024
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  • Jimp
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  • Link
Result

Twin-Disc Experimental Device for Study of Adhesion in Wheel-Rail Contact

In order to understand friction processes in wheel-rail contact a new experimental device has been developed. Twin-disc approach has been used to determine adhesion curves in wheel-rail contact under various conditions. Thi...

JR - Ostatní strojírenství

  • 2014
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  • Jx
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  • Link
Result

Deformation of Screw Machine Housing under Force Field and its Consequences

of rotor changes into spatial arrangement and the curve contact between tooth surfaces changes intocontact at point. The contact strain, in the case of spatial arrangement of axes, increases significantly with regart to

JQ - Strojní zařízení a nástroje

  • 2006
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  • Jx
Result

Contact graphs of curves (extended abstract)

BA - Obecná matematika

  • 1996
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  • X
Result

Osculating curves and their vizualisation, small trip to the history

Osculating circle is generally known in geometry. Especially in older literature, other types of osculating curves are processed. In this article we recall important definitions about osculating circles and curves and show some of t...

Applied mathematics

  • 2018
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  • O
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  • Link
Result

The influence of tilt on Berkovich indentation of a steel sample using FEM analysis and nanoindentation

an impact on the indentation curves and contact area. The X5CrNiCuNb 16-4 steel nanoindentation was modelled by FEM and the indentation curves were obtained. The Berkovich influence on the indentation curves. The ...

Materials engineering

  • 2022
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  • D
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  • Link
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