Numerical Study of Forced Vibration Suppression by Parametric Anti-Resonance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F16%3A00463214" target="_blank" >RIV/61388998:_____/16:00463214 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1515/aoa-2016-0051" target="_blank" >http://dx.doi.org/10.1515/aoa-2016-0051</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/aoa-2016-0051" target="_blank" >10.1515/aoa-2016-0051</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Study of Forced Vibration Suppression by Parametric Anti-Resonance

Popis výsledku v původním jazyce

The parametric anti-resonance phenomenon as an active damping tool for suppression of externally excited resonant vibration is numerically studied herein. It is well known fact that the anti-resonance phenomenon, i.e.the stiffness periodic variation by subtractive, combination resonance frequency, brings stabilization and cancelling into self-excited vibrations. But this paper aims at a new possibility of its application, namely a damping of externally excited resonant vibration. For extimation of its effect we come both from a characteristic exponent of the analytical solution and numerial solution of forced vibration of 2DOF linear system with additional parametric excitation. The amplitude suppression owing to the parametric anti-resonance is studied on several parameters of the system: a depth of parametric excitation, mass ratio, damping coefficient and small frequency deviations from the parametric anti-resonance.

Název v anglickém jazyce

Numerical Study of Forced Vibration Suppression by Parametric Anti-Resonance

Popis výsledku anglicky

The parametric anti-resonance phenomenon as an active damping tool for suppression of externally excited resonant vibration is numerically studied herein. It is well known fact that the anti-resonance phenomenon, i.e.the stiffness periodic variation by subtractive, combination resonance frequency, brings stabilization and cancelling into self-excited vibrations. But this paper aims at a new possibility of its application, namely a damping of externally excited resonant vibration. For extimation of its effect we come both from a characteristic exponent of the analytical solution and numerial solution of forced vibration of 2DOF linear system with additional parametric excitation. The amplitude suppression owing to the parametric anti-resonance is studied on several parameters of the system: a depth of parametric excitation, mass ratio, damping coefficient and small frequency deviations from the parametric anti-resonance.

Druh

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

CEP obor

BI - Akustika a kmity

OECD FORD obor

—

Projekt

<a href="/cs/project/GA16-04546S" target="_blank" >GA16-04546S: Aeroelastické vazby a dynamické chování rotačně periodických těles</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Archives of Acoustics

ISSN

0137-5075

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

7

Strana od-do

527-533

Kód UT WoS článku

000383219300012

EID výsledku v databázi Scopus

2-s2.0-84997050516