Non-linear model of a ball vibration absorber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F13%3A00395040" target="_blank" >RIV/68378297:_____/13:00395040 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-94-007-6573-3" target="_blank" >http://dx.doi.org/10.1007/978-94-007-6573-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-94-007-6573-3" target="_blank" >10.1007/978-94-007-6573-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Non-linear model of a ball vibration absorber

Popis výsledku v původním jazyce

Wind excited vibrations of slender structures such as towers, masts or certain types of bridges can be reduced using passive or active vibration absorbers. If there is available only a limited vertical space to install such a device, a ball type of absorber can be recommended. In general, it is a semi-spherical horizontal dish in which a ball of a smaller diameter is rolling. Ratio of both diameters, mass of the rolling ball, quality of contact surfaces and other parameters should correspond with characteristics of the structure. The ball absorber is modelled as a holonomous system. Using Lagrange equations of the second type, governing non-linear differential system is derived. The solution procedure combines analytical and numerical processes. As themain tool for dynamic stability investigation the 2nd Lyapunov method is used. The function and effectiveness of the absorber identical with those installed at the existing TV towers was examined in the laboratory of the Institute of The

Název v anglickém jazyce

Non-linear model of a ball vibration absorber

Popis výsledku anglicky

Wind excited vibrations of slender structures such as towers, masts or certain types of bridges can be reduced using passive or active vibration absorbers. If there is available only a limited vertical space to install such a device, a ball type of absorber can be recommended. In general, it is a semi-spherical horizontal dish in which a ball of a smaller diameter is rolling. Ratio of both diameters, mass of the rolling ball, quality of contact surfaces and other parameters should correspond with characteristics of the structure. The ball absorber is modelled as a holonomous system. Using Lagrange equations of the second type, governing non-linear differential system is derived. The solution procedure combines analytical and numerical processes. As themain tool for dynamic stability investigation the 2nd Lyapunov method is used. The function and effectiveness of the absorber identical with those installed at the existing TV towers was examined in the laboratory of the Institute of The

Druh

C - Kapitola v odborné knize

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Computational Methods in Earthquake Engineering

ISBN

978-94-007-6572-6

Počet stran výsledku

16

Strana od-do

381-396

Počet stran knihy

636

Název nakladatele

Springer

Místo vydání

Dordrecht

Kód UT WoS kapitoly

—