Extended delayed resonators – Design and experimental verification
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00304907" target="_blank" >RIV/68407700:21220/17:00304907 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21730/17:00304907
Result on the web
<a href="http://dx.doi.org/10.1016/j.mechatronics.2016.10.019" target="_blank" >http://dx.doi.org/10.1016/j.mechatronics.2016.10.019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mechatronics.2016.10.019" target="_blank" >10.1016/j.mechatronics.2016.10.019</a>
Alternative languages
Result language
angličtina
Original language name
Extended delayed resonators – Design and experimental verification
Original language description
The key contribution of the paper is in the modification of the well-known delayed resonator concept for vibration suppression using both delayed and non-delayed acceleration feedback control laws together. We further improve the classical resonator setting with lumped delay introducing a distributed delay structure into the control law. It is known that the operable frequency ranges for the delayed resonators are relatively narrow, taking into account both the stability and implementation constraints. As the key result of this paper, in order to widen the operable frequency range, the resonator's feedback is extended by including a non-delayed part to adjust virtually the mass and thus the natural frequency of the active absorber. The proposed extension takes into consideration also the existence of feedback delay and filters to reduce the measurement noise, and retain the simplicity of active controlled resonator tuning against excitations with time varying frequencies. The properties and performance of the resulting algorithms are compared with the delay free PI (proportional and integral) feedback control law. It is shown that the delay-based resonators are easier to implement and can better deal with the measurement noise compared to PI. Spectral theory of retarded and neutral time delay systems are applied to perform a thorough analysis of the resonators. The key theoretical results are validated on a laboratory set-up with voice-coil magnetic shakers.
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
<a href="/en/project/LH12066" target="_blank" >LH12066: Spectral methods for vibration suppression and control design of mechanical systems with feedback delays</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mechatronics
ISSN
0957-4158
e-ISSN
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Volume of the periodical
41
Issue of the periodical within the volume
February
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
29-44
UT code for WoS article
000394076000003
EID of the result in the Scopus database
2-s2.0-84998707011