Effect of Hydrostatic Guideway on Reduction of Machine Tool Ram Vibration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00326322" target="_blank" >RIV/68407700:21220/18:00326322 - isvavai.cz</a>

Výsledek na webu

<a href="http://stc.fs.cvut.cz/pdf18/8527.pdf" target="_blank" >http://stc.fs.cvut.cz/pdf18/8527.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Hydrostatic Guideway on Reduction of Machine Tool Ram Vibration

Popis výsledku v původním jazyce

The guideways provide translational movement of machine parts and have a major impact on the resulting utility properties of the ma-chine tools, such as machining accuracy, surface quality and productivity. It is generally understood that hydrostatic guideways have better damping properties than linear guideways with rolling elements. However, quantitative expressions of better damping appear in the literature very sporadically. Therefore, this paper aims to compare hydrostatic and linear guideways and to assess the impact of higher damping on a ram vibrations of a large machine tool. The forced oscillations amplitude of the ram tool center point was calculat-ed by the FEM model of the deformable ram and stiffness and damping model of guideways. Results indicate that hydrostatic guide-way reduce the forced oscillation amplitude of the first eigenfrequency 15 times in case of the modeled machine tool.

Název v anglickém jazyce

Effect of Hydrostatic Guideway on Reduction of Machine Tool Ram Vibration

Popis výsledku anglicky

The guideways provide translational movement of machine parts and have a major impact on the resulting utility properties of the ma-chine tools, such as machining accuracy, surface quality and productivity. It is generally understood that hydrostatic guideways have better damping properties than linear guideways with rolling elements. However, quantitative expressions of better damping appear in the literature very sporadically. Therefore, this paper aims to compare hydrostatic and linear guideways and to assess the impact of higher damping on a ram vibrations of a large machine tool. The forced oscillations amplitude of the ram tool center point was calculat-ed by the FEM model of the deformable ram and stiffness and damping model of guideways. Results indicate that hydrostatic guide-way reduce the forced oscillation amplitude of the first eigenfrequency 15 times in case of the modeled machine tool.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Konference studentské tvůrčí činnosti

ISBN

978-80-01-06421-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

ČVUT v Praze, fakulta strojní

Místo vydání

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Místo konání akce

Praha

Datum konání akce

11. 4. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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