Imposed Rubber Elements for Bladed Wheel Vibration Suppression

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00458638" target="_blank" >RIV/61388998:_____/15:00458638 - 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

Imposed Rubber Elements for Bladed Wheel Vibration Suppression

Popis výsledku v původním jazyce

The proposed contribution deals with a novel research focusing on bladed wheel vibration suppression by inserted elements of temperature resistive rubberlike materials. The FKM rubber was selected as a perspective material since it is known by its resistances against high temperatures and against aggressive chemicals. As a study case, the five-blade bundle linked by wedge-form rubber elements imposed in the head interspaces of the neighbouring blades was chosen. Thermo-mechanical effect on the dynamics of the bundle was investigated numerically and experimentally and a good agreement was achieved in modal characteristics of both approaches. The results of the study show that although the material damping markedly decreases at higher temperatures around 150 degrees C with respect to a room temperature, the damping capacity of the FKM elements remains still relatively high with comparison to the interblade structural damping as a result of dry friction.

Název v anglickém jazyce

Imposed Rubber Elements for Bladed Wheel Vibration Suppression

Popis výsledku anglicky

The proposed contribution deals with a novel research focusing on bladed wheel vibration suppression by inserted elements of temperature resistive rubberlike materials. The FKM rubber was selected as a perspective material since it is known by its resistances against high temperatures and against aggressive chemicals. As a study case, the five-blade bundle linked by wedge-form rubber elements imposed in the head interspaces of the neighbouring blades was chosen. Thermo-mechanical effect on the dynamics of the bundle was investigated numerically and experimentally and a good agreement was achieved in modal characteristics of both approaches. The results of the study show that although the material damping markedly decreases at higher temperatures around 150 degrees C with respect to a room temperature, the damping capacity of the FKM elements remains still relatively high with comparison to the interblade structural damping as a result of dry friction.

Druh

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

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F09%2F1166" target="_blank" >GA101/09/1166: Výzkum dynamických vlastností a optimalizace složitých rotujících soustav s nelineárními vazbami a materiály o vysokém útlumu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Vibration Engineering & Technologies

ISSN

2321-3558

e-ISSN

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Svazek periodika

3

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

9

Strana od-do

733-741

Kód UT WoS článku

000367595300006

EID výsledku v databázi Scopus

2-s2.0-84953262434