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Title: Vibration Damping of Beams and Plates by Mastic Deadner
Authors: MATSUHISA, Hiroshi
KANO, Hiroyuki
SATO, Susumu
Issue Date: 31-Mar-1983
Publisher: Faculty of Engineering, Kyoto University
Journal title: Memoirs of the Faculty of Engineering, Kyoto University
Volume: 45
Issue: 1
Start page: 1
End page: 10
Abstract: Mastic deadner is widely used for the vibration reduction of thin plates and beams because of its easy treatment and low cost. In this paper, the damping capacity of the mastic deadner is investigated theoretically and experimentally. The vibrations of a beam and a plate covered with the mastic deadner under an external exciting force were analyzed by making use of an eigenfunction expansion method. Experiments with the beams and the plates were carried out, and the relation between the vibration amplitude and the thickness of the mastic deadner was investigated. From the theoretical and the experimental results, the following conclusions were obtained. The vibration amplitudes at the natural frequencies are remarkably decreased by the mastic deadner. The loss factor of the plate covered with the mastic deadner is proportional to the square of the ratio of the thickness of the mastic deadner to that of the basic beam and plate. The vibration amplitude at the natural frequency is inversely proportional to the square of the thickness ratio.
URI: http://hdl.handle.net/2433/281231
Appears in Collections:Vol.45 Part 1

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