**Authors:**

**Type:**

**Pages:**

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**Received:**

**Accepted:**

**Published:**

**Subject area:**

GRNTI 45.01 Общие вопросы электротехники

GRNTI 55.42 Двигателестроение

GRNTI 55.45 Судостроение

GRNTI 73.34 Водный транспорт

GRNTI 44.31 Теплоэнергетика. Теплотехника

**Language:**

**Keywords:**

**Abstract (English):**

The paper presents a formulation and an algorithm of designing calculation of a pressure hull made from polymer composite materials for underwater equipment, based on the requirements of strength and static stability formalized as the main criterion of quality of the pressure hull - the weight-to-displacement ratio W/D , and the example of calculation of the rational structure of the new composite hull - the hull in the shape of a round closed torus. In the designing calculation, the variability of the hull thickness which is the result of torus designing by the method of winding, is taken into account. The restrictions on the strength are defined as a Mises - Hill criterion, while on the static stability - by the upper critical pressure. The toroidal pressure hull made from polymer composite materials using longitudinal-transverse winding has been taken as an example for calculation.

**Keywords:**

underwater vehicle, designing, toroidal pressure hull, filament winding, external hydrostatic pressure, buckling, strength, carbon-fiber reinforced plastic, glass-fiber reinforced plastic

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