More accurate determination of a pressure function in long hydrodynamical bearings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F02%3A00006624" target="_blank" >RIV/61989100:27230/02:00006624 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
More accurate determination of a pressure function in long hydrodynamical bearings
Original language description
Fluid-film bearings are usually incorporated into computational models by means of nonlinear force couplings. Calculation of components the hydraulical force through which the layer of lubricant acts on the rotor journal and bearing shell requires to determine a pressure distribution ( a pressure function ) in the bearing gap which is described by a set of Navier-Stokes equations. Because their solution ( together with the equation of continuity ) is considerably time consuming, a new approach to calculation of the pressure function has been developed. It consists in averaging the terms in the Navier-Stokes equation corresponding to the direction of prevailing pressure gradient ( in long bearings it is in the circumferential direction ). To perform this manipulation velocity profiles obtained from solving a Reynolds' equation are applied. As the pressure function is 2p-periodic, it is approximated by a finite number of terms of a Fourier series and the Fourier coefficients are calculat
Czech name
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Czech description
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Project
<a href="/en/project/GA101%2F02%2F0011" target="_blank" >GA101/02/0011: New approach to the analysis of dynamic behaviour of nonlinear coupling elements using in rotor dynamic systems</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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