Sound of a nut rolling inside an elastic rubber balloon

This article studies the sound produced by nuts of different shapes swirling in an elastic rubber balloon. First, the sound is studied experimentally, both in terms of frequency and amplitude. Regarding the frequency components of the sound, we show that they can be divided into two main contributio...

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Bibliographic Details
Published in:Emergent scientist 2019, Vol.3, p.6
Main Authors: Barral, Amaury, Louis, Quentin, Brochet, Clément, André, Julie, Guillen, Anthony, Goh, Fang, Prieto, Angel, Guillet, Thibault
Format: Article
Language:English
Subjects:
Balloons
Cameras
Experiments
Friction
Rubber
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Summary:This article studies the sound produced by nuts of different shapes swirling in an elastic rubber balloon. First, the sound is studied experimentally, both in terms of frequency and amplitude. Regarding the frequency components of the sound, we show that they can be divided into two main contributions – one due to the oscillations of the elastic membrane, the other due to the hits of the nut against the balloon – and present models to describe the frequency’s dependence on the main parameters of the system. We analysed the influence of several parameters such as the balloon’s geometry, the nut’s geometry and its mass.
ISSN:2556-8779
2556-8779
DOI:10.1051/emsci/2019005