Experimental study of the novel tuned mass damper with inerter which enables changes of inertance

In this paper we present the experimental verification of the novel tuned mass damper which enables changes of inertance. Characteristic feature of the proposed device is the presence of special type of inerter. This inerter incorporates a continuously variable transmission that enables stepless cha...

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Bibliographic Details
Published in:Journal of sound and vibration 2017-09, Vol.404, p.47-57
Main Authors: Brzeski, P., Lazarek, M., Perlikowski, P.
Format: Article
Language:English
Subjects:
Computer simulation
Continuously variable
Damping
Experimental investigation
Experiments
Frequencies
Inerter
Kinematics
Mathematical models
Prototype
Simulation
Transmissions (automotive)
Tuned mass damper
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Summary:In this paper we present the experimental verification of the novel tuned mass damper which enables changes of inertance. Characteristic feature of the proposed device is the presence of special type of inerter. This inerter incorporates a continuously variable transmission that enables stepless changes of inertance. Thus, it enables to adjust the parameters of the damping device to the current forcing characteristic. In the paper we present and describe the experimental rig that consists of the massive main oscillator forced kinematically and the prototype of the investigated damper. We perform a series of dedicated experiments to characterize the device and asses its damping efficiency. Moreover, we perform numerical simulations using the simple mathematical model of investigated system. Comparing the numerical results and the experimental data we legitimize the model and demonstrate the capabilities of the investigated tuned mass damper. Presented results prove that the concept of the novel type of tuned mass damper can be realized and enable to confirm its main advantages. Investigated prototype device offers excellent damping efficiency in a wide range of forcing frequencies.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2017.05.034