A device inspired by the mantis shrimp’s strike to produce cavitation bubbles on solid surfaces

We discuss a low-cost mechanical device designed to generate cavitation bubbles through the impact of rigid surfaces. The process is triggered by a pivoting limb, which develops speeds as high as 180 rad/s (9 m/s) while submerged in water. A mathematical model is proposed to describe the limb’s dyna...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-01, Vol.1723 (1), p.12014
Main Authors: Godínez, F A, Guzmán, J E V, Valdés, R, Chávez, O, De La Rosa, K G, Cruz, S
Format: Article
Language:English
Subjects:
Bubbles
Cavitation
Lithotripsy
Mathematical models
Mechanical devices
Physics
Potential energy
Solid surfaces
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Summary:We discuss a low-cost mechanical device designed to generate cavitation bubbles through the impact of rigid surfaces. The process is triggered by a pivoting limb, which develops speeds as high as 180 rad/s (9 m/s) while submerged in water. A mathematical model is proposed to describe the limb’s dynamics whose results are in good agreement with the experimental data. The model shows that more than 65 % of the elastic-potential energy to power the limb is dissipated by drag/friction effects. This key aspect must be considered when developing efficient devices for applications such as lithotripsy.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1723/1/012014