Underwater towing body controlled by front-edge-rotating cylindrical wing

Abstract

The invention discloses an underwater towing body controlled by a front-edge-rotating cylindrical wing. Forced sinking hydrofoils of the underwater towing body adopt symmetrical airfoil profiles, andare symmetrically arranged on the two sides of the front portion of a main cavity, two rotating cylinders are symmetrically arranged at the front ends of the profile faces of the forced sinking hydrofoils relative to the main cavity, and are connected with a speed adjusting motor located inside the main cavity through rotating-cylinder rotating shafts; ducted propellers are symmetrically arrangedon the two sides of the back ends of the forced sinking hydrofoils; a transverse horizontal fixed empennage is arranged at the tai lend of the main cavity, and vertical streamlined flap type rudders are symmetrically arranged at the two ends of the transverse horizontal fixed empennage respectively; a flap is arranged at the tail end of each vertical streamlined flap type rudder, and is connectedwith a flap angle control device. According to the underwater towing body controlled by the front-edge-rotating cylindrical wing, by changing the rotating speeds and the rotating directions of the rotating cylinders at the front ends of the forced sinking hydrofoils, attack angles of the forced sinking hydrofoils can be efficiently and flexibly adjusted, and the aim of changing the motion trail ofthe vertical direction of the towing body is achieved; on this basis, the thrust directions of two-side propellers are changed through assisting, and directional floating and sinking can be achieved.

Description

technical field [0001] The invention relates to a remote-controlled underwater towing body with a cable, in particular to an underwater towing body controlled by a front-edge rotating cylindrical wing, which can be used for detection of underwater organisms and physical and chemical environments. Background technique [0002] The remote control underwater towed body with cable is a kind of marine equipment widely used in the fields of underwater investigation, seabed exploration, seabed development and salvage, lifesaving and so on. The cable-controlled underwater towed body usually consists of a towed cable, a steerable towed body, trajectory and attitude control equipment, and functional instruments. Usually, the mother ship drags the underwater towed body through the tow cable to travel and operate. Different monitoring equipment can be carried inside the towed body according to different operation requirements. At the same time, underwater vision systems, sonar systems, ...

AI Technical Summary

Problems solved by technology

Changing the length of the towing cable is relatively rough for depth control, and cannot achieve small-scale depth adjustment. In deeper waters, due to the high pressure on the upper surface of the forcing-sinking hydrofoil, actively changing the angle of attack of the forcing-sinking hydrofoil requires precise and strong mechanical components , such components are complex in structure and easily damaged, with high maintenance costs and low economic efficiency

As for the shape of the underwater towed body, most of them basically adopt the shape design of the aeronautical aircraft, which is composed of a cylindrical main cavity and a forced-sinking hydrofoil with an adjustable angle of attack. The roll and pitch damping of the columnar body is small, and it is easy to generate a large roll angle and pitch angle during the towing process, which increases the difficulty of attitude adjustment and manipulation of the towed body, and improves the control performance during multi-degree-of-freedom manipulation. Difficulty, it is not easy to achieve multi-freedom, horizontal and horizontal underwater observation perpendicular to the towing direction. The manipulation equipment for controlling such underwater towed bodies is complex in structure and large in size, which reduces the need for underwater towed bodies to carry relevant professional scientific research equipment. Ability

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