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Theoretical and experimental analysis of a skyhook damper for active control of sound transmission (CROSBI ID 686255)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Alujević, Neven ; Claes, Steven ; Šimag, Martina ; Sas Paul Theoretical and experimental analysis of a skyhook damper for active control of sound transmission // PROCEEDINGS of the 23rd International Congress on Acoustics. Aachen, 2019. str. 3245-3252

Podaci o odgovornosti

Alujević, Neven ; Claes, Steven ; Šimag, Martina ; Sas Paul

engleski

Theoretical and experimental analysis of a skyhook damper for active control of sound transmission

In this paper active control of sound transmission through a double panel is considered. The active control system consists of one accelerometer mounted on the radiating panel whose time-integrated and amplified output is used as the error signal to drive a voice-coil actuator that reacts between the source and the radiating panel. Effects of one such active damper in the centre of the double panel system are considered, although, in principle, it could be repeated in the x-y plane and then used in the centralised, distributed or a decentralised manner. Theoretical and an experimental results are presented and compared. In the theoretical part, the mobility matrix model is used to investigate the stability of the feedback loop and to calculate the sound transmission ratio with and without control. It is shown that large reductions of the sound transmission ratio are possible, however only if the natural frequency of the fundamental source panel mode is higher than the natural frequency of the fundamental radiating panel mode. The experimental part of the study is carried out on the prototype active panel system and the measured result fully corroborate theoretical predictions.

Sound, Vibration, Active control of sound transmission

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Podaci o prilogu

3245-3252.

2019.

objavljeno

Podaci o matičnoj publikaciji

PROCEEDINGS of the 23rd International Congress on Acoustics

Aachen:

Podaci o skupu

23rd International Congress on Acoustics ; 4th EAA Euroregio 2019

predavanje

09.09.2019-13.09.2019

Aachen, Njemačka

Povezanost rada

Ekonomija, Strojarstvo, Temeljne tehničke znanosti