Calibration and Balancing of Multiple Tuned Mass Absorbers for Damping of Coupled Bending-Torsion Beam Vibrations

David Hoffmeyer, Jan Høgsberg

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

For damping of fully coupled beam vibrations a three-component tuned mass absorber is proposed, consisting of two translational and a single rotational absorber, which together target a specific vibration mode. The representation of the interaction with residual non-resonant vibration modes is consistently included by two supplemental terms in the absorber equation, calibrated by frequency matching with the full structural model for vanishing absorber damping. The absorber tuning directly includes these residual terms without approximation when the underlying modal representation is based on the vibration form with absorber masses rigidly attached to the structure. It is demonstrated that the desired damping behaviour require non-homogeneous absorber balancing, obtained by an approximate method for the relative sizing of each absorber mass.
OriginalsprogEngelsk
Artikelnummer044501
TidsskriftJournal of Vibration and Acoustics
Vol/bind142
Udgave nummer4
Antal sider8
ISSN1048-9002
DOI
StatusUdgivet - aug. 2020
Udgivet eksterntJa

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