Pressure Hull Design Methods for Unmanned Underwater Vehicles

Clicks: 181
ID: 114319
2019
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Abstract
This paper describes design methods for the plastic hull of an Unmanned Underwater Vehicle (UUV), with a particular focus on its cylindrical body and nearly spherical domes at the ends. With the proposed approach, the methodologies reported in the literature were compared, and suitable modifications and improvements were investigated and implemented to extend the classical theories and data to this case study. The investigated underwater vehicle, named FeelHippo, was designed and assembled by the Department of Industrial Engineering of the University of Florence. Its main hull is composed of an extruded PMMA (PolyMethyl MethAcrylate) cylinder and two thermoformed PMMA domes. Breakage of the hull results in destructive phenomena, namely, yielding and buckling. An experimental campaign and FEM (Finite Element Method) analysis were carried out to complete the theoretical study, and the collapse pressures were compared with the derived design values. In conclusion, the proposed innovative method is a lean and effective technique for designing underwater hull domes and predicting the collapse pressures.
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Authors Alessia Meschini;Alessandro Ridolfi;Jonathan Gelli;Marco Pagliai;Andrea Rindi;Meschini, Alessia;Ridolfi, Alessandro;Gelli, Jonathan;Pagliai, Marco;Rindi, Andrea;
Journal journal of marine science and engineering
Year 2019
DOI
10.3390/jmse7110382
URL
https://www.mdpi.com/2077-1312/7/11/382
Keywords
structural analysis autonomous underwater vehicles unmanned underwater vehicles underwater vessel design buckling hull collapse

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