Collocated and non-collocated active spatial absorbers for spatial flexible structures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00375991" target="_blank" >RIV/68407700:21220/25:00375991 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1080/15397734.2024.2361140" target="_blank" >https://doi.org/10.1080/15397734.2024.2361140</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/15397734.2024.2361140" target="_blank" >10.1080/15397734.2024.2361140</a>
Alternative languages
Result language
angličtina
Original language name
Collocated and non-collocated active spatial absorbers for spatial flexible structures
Original language description
This article deals with the analysis and design of an active spatial mechanical vibration absorber and verification of its performance in collocated and non-collocated vibration absorption of a spatial flexible primary structure. The considered active absorber with six degrees of freedom has six identical natural frequencies. It is a so-called unifrequency absorber. The unifrequency property is achieved by delayed feedback, according to the concept of a delayed resonator. A proper tuning of the delayed feedback compensates the damping and variations in stiffness of mechanical parts, resulting in the behavior of an ideal absorber. The absorber was attached to a three-dimensional flexible frame with many degrees of freedom transformed to a reduced order model in modal coordinates. The use of a unifrequency absorber for two types of tasks is shown in this article. In the collocated case, the absorber is placed at the location where we want to suppress vibration. Such a placement is often not possible for various reasons. Therefore, the non-collocated absorber is also investigated which is remote from the point of desired vibration suppression. The absorber has considerable potential for use in improving the dynamic behavior of robots, complex rotor systems, and other mechanical systems suffering from unwanted fully spatial vibrations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mechanics Based Design of Structures and Machines
ISSN
1539-7734
e-ISSN
1539-7742
Volume of the periodical
53
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
29
Pages from-to
90-118
UT code for WoS article
001242041500001
EID of the result in the Scopus database
2-s2.0-85195311748