Biomedical Science and Engineering
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Biomedical Science and Engineering. 2015, 3(2), 30-34
DOI: 10.12691/bse-3-2-1
Open AccessArticle

Preliminary Calculation of Bubble Dynamics in Cracking Sound Generation

Tetsuya Kanagawa1, and Hisao Taira2

1Department of Engineering Mechanics and Energy, University of Tsukuba, Tsukuba, Japan

2Department of Education, Hokkaido University of Education, Sapporo Campus, Sapporo, Japan

Pub. Date: September 08, 2015

Cite this paper:
Tetsuya Kanagawa and Hisao Taira. Preliminary Calculation of Bubble Dynamics in Cracking Sound Generation. Biomedical Science and Engineering. 2015; 3(2):30-34. doi: 10.12691/bse-3-2-1


Bending a human joint generates a sound. This paper theoretically tackles the cracking sound generated by the manipulation of human joint such as finger. The Rayleigh-Plesset equation in the classical bubble dynamics is applied to determine the nonlinear oscillations of bubble that generates sound. Comparing the numerical solutions of the Rayleigh-Plesset equation for two types of modeling, i.e., forced- and free-oscillator assumptions for inhomogeneous terms, gives clear difference.

cracking sound joint manipulation bubble dynamics bubble oscillation

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