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Performance of Numerically Optimized Tuned Mass Damper with Inerter (TMDI)

  • In recent years, the Tuned Mass Damper with inerter (TMDI) has received significant attention. The inerter is defined to exert a force that is in proportion to the relative acceleration of the two inerter terminals. Here, two TMDI topologies are investigated. The conventional topology is given by the inerter being in parallel to the spring and viscous damper of the TMDI. The other topology is the serial arrangement of spring, inerter and viscous damper being in parallel to the stiffness of the mass spring oscillator of the TMDI. While the first topology intends to increase the inertial force of the TMDI, the second topology aims at producing an additional degree of freedom. The considered TMDI concepts are simulated for harmonic and random excitations, with parameters set according to those described in the literature and with numerically optimized parameters which minimize the primary structure displacement response. The classical TMD is used as a benchmark. The findings are twofold. The conventional TMDI with typical inertance ratio of 1% and the very small value of 0.02% performs significantly worse than the classical TMD with the same mass ratio. In contrast, the TMDI with an additional degree of freedom can improve the mitigation of the primary structure if the inertance ratio is set very small and if the TMDI parameters are numerically optimized.

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Metadaten
Author:Felix WeberORCiD, Fredrik Borchsenius, Johann Distl, Christian Braun
DOI:https://doi.org/10.3390/app12126204
Parent Title (English):Applied Sciences
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of first Publication:2022
Release Date:2022/07/14
Tag:TMD; TMDI; damping; inerter; optimization; vibration
Volume:12
Issue:12
Article Number:6204
First Page:1
Last Page:15
Institutes:Fakultät Maschinenbau
Begutachtungsstatus:peer-reviewed
OpenAccess Publikationsweg:Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International