A two-body underwater towing device with hydraulic forced sinking attitude stability

Abstract

The invention discloses a hydropower forced sinking posture-stable double-body underwater dragging device. The device comprises a primary dragging body, a primary dragging cable, a secondary draggingbody and a second dragging cable, wherein the primary dragging body and the secondary dragging body are connected through the secondary dragging cable; the primary dragging body comprises a primary dragging body cavity, a heaving control mechanism, a mechanical course change control mechanism, a water spray course change control mechanism and a dip angle control mechanism; a heaving control cabinand a course change control cabin are arranged at the upper part of the primary dragging body cavity and a submerged pump pod is arranged at the lower part of the primary dragging body cavity; the heaving control mechanism consists of a plurality of heaving control hydrofoils, an airfoil floating body, a rocker in the heaving control cabin, a porous connection rod and a heaving linear motor; a course change control hydrofoil of the mechanical course change control mechanism is vertically arranged at the rear part of a stand column; and the water spray course control mechanism is arranged in the submerged pump pod. The device has the characteristics of being stable in detection platform motion, flexible to control and reasonable in cabin layout.

Description

technical field [0001] The invention relates to an underwater towing body, in particular to a two-body underwater towing device with hydraulic forced sinking and stable attitude. Background technique [0002] The underwater towed body is an underwater device that moves under the drag control of ships, submarines or helicopters. This device realizes dynamic monitoring of underwater physical and chemical environmental parameters by carrying physical or chemical environmental parameter sensors. The underwater towed body is an important platform for marine environment monitoring, marine hydrological data observation, and marine disaster early warning. [0003] How to enhance the towing stability and maneuverability of the underwater towed body in a simple and effective way is still one of the key technologies to be solved in the research and development of the underwater towed body. Most of the early underwater towed bodies changed the depth of the underwater towed body by retr...

AI Technical Summary

Problems solved by technology

Most of the early underwater towed bodies changed the depth of the underwater towed body by retracting and releasing the towing cables, and the depth control method by retracting and releasing the towing cables was easily affected by the towing motion, and the fluid force on the towing cables during towing would be Inducing the underwater towed body to float up involuntarily to reduce the depth stability of the underwater towed body

With the development of science and technology, depth control technology and bow turning control technology are gradually applied to the motion control of underwater towed bodies. The vibration and noise interference of the mechanism, etc., and the irregular movement of the towed vehicles such as ships, submarines or helicopters under the interference of wind, waves and currents will also be directly transmitted to the underwater towed body equipped with detection instruments through the tow cable, causing the underwater towed body equipped with detection instruments to The depth stability of the lower towed body is reduced. Excessive pitch angle changes, yaw angle changes, vibration and noise of the control mechanism, and irregular motion of the tow vehicle will seriously reduce the detection efficiency of physical or chemical environmental parameters sensors. How to slow down the towed body? Pitch angle, heading angle, vibration and noise of the control mechanism, and the interference of the irregular motion of the tow vehicle on the physical or chemical environmental parameter sensors are one of the technical obstacles that have to be faced in the development of new underwater towed bodies.

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