Robust delayed resonator with acceleration feedback - design by double root assignment and experimental validation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21730%2F24%3A00372286" target="_blank" >RIV/68407700:21730/24:00372286 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/24:00372286
Result on the web
<a href="https://doi.org/10.1016/j.jsv.2024.118261" target="_blank" >https://doi.org/10.1016/j.jsv.2024.118261</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jsv.2024.118261" target="_blank" >10.1016/j.jsv.2024.118261</a>

Result language
angličtina
Original language name
Robust delayed resonator with acceleration feedback - design by double root assignment and experimental validation
Original language description
A combination of analytical and numerical time-delay system spectrum-shaping tools are applied to the design of the robust delayed resonator with an acceleration feedback. First, the delayed resonator model is turned into a dimension-less form with the objective to generalize the derived results. The main theoretical result is then provided as a complete parameterization of the proposed resonator feedback with two delay terms to assign a pair of roots with multiplicity two on the imaginary axis. In the frequency domain, the double roots are projected to widen the stopband in the active absorber frequency response, which increases its robustness in vibration suppression. On the other hand, they have a destabilizing effect on the overall system dynamics. The stabilization is subsequently performed by an additional controller via spectral optimization. The design is thoroughly validated by both simulations and experiments where the results are compared with the classical delayed resonator with lumped delay acceleration feedback.
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
20205 - Automation and control systems

Project
<a href="/en/project/GA21-00871S" target="_blank" >GA21-00871S: Active non-collocated vibration absorption for robots and mechanical structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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