A computational investigation of the disk-housing impacts of accelerating rotors supported by hydrodynamic bearings,

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F11%3A86079897" target="_blank" >RIV/61989100:27230/11:86079897 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A computational investigation of the disk-housing impacts of accelerating rotors supported by hydrodynamic bearings,

Popis výsledku v původním jazyce

As the radial clearance between discs and the casing of rotating machines is usually very narrow, excessive lateral vibration of accelerating rotors passing critical speeds can produce impacts between the discs and the housing. In the developed procedure, the shaft is flexible and the discs are absolutely rigid. The hydrodynamic bearings and the impacts are implemented in the mathematical model by means of non-linear force couplings. Most of the publications and computer codes from the field of rotor dynamics are referred only in the case when the rotor turns at a constant angular speed and in simple cases of disc-housing impacts. Moreover, if the discs turning at variable speed are investigated, the resulting form of the equations of motion derived bydifferent authors slightly differs and the differences depend on the method used for their derivation. Therefore particular emphasis in this article is given to the derivation of the motion equations of a continuous rotor turning with va

Název v anglickém jazyce

A computational investigation of the disk-housing impacts of accelerating rotors supported by hydrodynamic bearings,

Popis výsledku anglicky

As the radial clearance between discs and the casing of rotating machines is usually very narrow, excessive lateral vibration of accelerating rotors passing critical speeds can produce impacts between the discs and the housing. In the developed procedure, the shaft is flexible and the discs are absolutely rigid. The hydrodynamic bearings and the impacts are implemented in the mathematical model by means of non-linear force couplings. Most of the publications and computer codes from the field of rotor dynamics are referred only in the case when the rotor turns at a constant angular speed and in simple cases of disc-housing impacts. Moreover, if the discs turning at variable speed are investigated, the resulting form of the equations of motion derived bydifferent authors slightly differs and the differences depend on the method used for their derivation. Therefore particular emphasis in this article is given to the derivation of the motion equations of a continuous rotor turning with va

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F10%2F0209" target="_blank" >GAP101/10/0209: Výzkum a modelování vlivu řízení meze tečení magnetoreologické kapaliny v tenkém mazacím filmu na kmitání rotorů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Applied Mechanics

ISSN

0021-8936

e-ISSN

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Svazek periodika

78

Číslo periodika v rámci svazku

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Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

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EID výsledku v databázi Scopus

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