Two-Dimensional delayed resonator for entire vibration absorption

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00347337" target="_blank" >RIV/68407700:21220/21:00347337 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21730/21:00347337
Result on the web
<a href="https://doi.org/10.1016/j.jsv.2021.116010" target="_blank" >https://doi.org/10.1016/j.jsv.2021.116010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jsv.2021.116010" target="_blank" >10.1016/j.jsv.2021.116010</a>

Result language
angličtina
Original language name
Two-Dimensional delayed resonator for entire vibration absorption
Original language description
A one dimensional active vibration absorber with time delayed feedback known as delayed resonator proved to be well applicable for entire vibration absorption of mechanical structure at known excitation frequency. As the main and so far unique result, the delayed resonator concept is transferred from one dimensional to two dimensional vibration absorption. In the first step, an ideal two dimensional vibration absorber with three spring joints is designed with the three eigenfrequencies identical with the excitation frequency to be absorbed. Unlike in one dimensional case, the design imposes constraints on parameters of the two-dimensional absorber. In the second step, an active delayed position feedback is proposed at the three connecting joints with springs and dampers to turn a physical active absorber to the ideal uni-frequency absorber proposed in the first step. In particular, the task for the delayed feedback is to compensate the damping and virtually adjust the stiffness of the three active connecting elements. The proposed concept is analysed via frequency response of arising MIMO system as well as via spectral features of arising infinite-dimensional time delay system. The overall concept and design procedure are validated on a simulation case study.
Czech name
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Czech description
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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

Project
<a href="/en/project/GA17-20943S" target="_blank" >GA17-20943S: Active multidimensional vibration absorbers for complex mechanical structures based on delayed resonator method</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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