Abstract

The AUV combines mostly in ball shell, cylindrical shell, taper shells and other rotary shells by thread coupling, bolt
coupling, wedge coupling and hoop coupling. This paper makes the finite element analysis and research on the
mechanics mode of a certain AUV with the analytic method. Based on the basic equation of theory of thin shells,
analysed every separated shells, and set up it!?s mechanics mathematical model, and analysed the combied shell with
the finite element method. At last, the final result validated the mathematical model. The method presented is effective
in analysing and dynamical designing of AUV structure.

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