Three dimensional delayed resonator of Stewart platform type for entire absorption of fully spatial vibration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00369292" target="_blank" >RIV/68407700:21220/24:00369292 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jsv.2023.118154" target="_blank" >https://doi.org/10.1016/j.jsv.2023.118154</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jsv.2023.118154" target="_blank" >10.1016/j.jsv.2023.118154</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Three dimensional delayed resonator of Stewart platform type for entire absorption of fully spatial vibration

Popis výsledku v původním jazyce

The paper deals with a novel design and investigation of a compact six degrees of freedom active vibration absorber with six identical eigenfrequencies. The objective is to entirely suppress vibration of a machine structure with six motion components, three translational and three rotational. The geometry of the spatial unifrequency absorber is based on a Stewart platform structure equipped with six active legs. Variants of this structure are analyzed. The six identical eigenfrequencies are finally reached by exerting active forces by actuators in the absorber legs, which actually produce active negative torsional stiffness. Achieving the unifrequency absorber with the help of a correction feedback brings variability to an optimization of the absorber design solution. In the next step, an active delayed resonator feedback is implemented to compensate the damping and to correct stiffness imperfections of the legs. The overall concept and design procedure are validated on a simulation case study including spectral analysis of arising infinite-dimensional system.

Název v anglickém jazyce

Three dimensional delayed resonator of Stewart platform type for entire absorption of fully spatial vibration

Popis výsledku anglicky

The paper deals with a novel design and investigation of a compact six degrees of freedom active vibration absorber with six identical eigenfrequencies. The objective is to entirely suppress vibration of a machine structure with six motion components, three translational and three rotational. The geometry of the spatial unifrequency absorber is based on a Stewart platform structure equipped with six active legs. Variants of this structure are analyzed. The six identical eigenfrequencies are finally reached by exerting active forces by actuators in the absorber legs, which actually produce active negative torsional stiffness. Achieving the unifrequency absorber with the help of a correction feedback brings variability to an optimization of the absorber design solution. In the next step, an active delayed resonator feedback is implemented to compensate the damping and to correct stiffness imperfections of the legs. The overall concept and design procedure are validated on a simulation case study including spectral analysis of arising infinite-dimensional system.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA21-00871S" target="_blank" >GA21-00871S: Aktivní nekolokované hlcení vibrací pro roboty a mechanické konstrukce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Sound and Vibration

ISSN

0022-460X

e-ISSN

1095-8568

Svazek periodika

571

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

1-22

Kód UT WoS článku

001110803300001

EID výsledku v databázi Scopus

2-s2.0-85176100457