An adaptive and continuously adjustable cavitation structure

A self-adaptive, cavitator technology, which is applied to special-purpose ships, underwater operating equipment, ships, etc., can solve the problems of mismatch between the shape of supercavitation and the shape of flying body, poor cavitation stability, and large overall resistance. Achieve continuous change satisfaction, reduce frictional resistance, and reduce total resistance
CN110758695BActive Publication Date: 2020-09-18NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2020-09-18

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Abstract

The invention discloses an adaptive continuously-adjustable cavitation device structure. The adaptive continuously-adjustable cavitation device structure comprises a benchmark chassis, a rotatable telescopic assembly and a drive mechanism assembly which are connected with one another, wherein the benchmark chassis and the rotatable telescopic assembly rotate under the power drive action of a servomotor, and the diameter of an outer edge formed by multiple layers of sector part groups in rotating is continuously adjustable along with rotation changes of the servo motor. In the variable speed sailing process of an underwater sailing body, the adaptive continuously-adjustable cavitation device structure provides power through the drive mechanism assembly to drive the multiple layers of sector part groups of the rotatable telescopic assembly to synchronously expand outward or contract inward, and adjusts the drive mechanism assembly according to change situation feedback of hydrokinetic parameters of an external flow field of the sailing body so as to realize adaptive change of the diameter of a cavitation device, thereby completing control for the size and the form of vacuoles, decreasing the wetting area of the underwater sailing body and reducing pressure difference resistance additionally caused to the utmost, greatly reducing frictional resistance and total resistance, and greatly improving the maximum speed and sailing distance of the sailing body.
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Description

technical field

[0001] The invention relates to the field of cavitator structure design simulation in supercavitation technology, in particular to an adaptive and continuously adjustable cavitator structure under different cavitation numbers and an underwater vehicle equipped with the cavitator structure . Background technique

[0002] The head of a supercavitating vehicle generally needs to be equipped with special components that are conducive to inducing cavitation, called cavitators. In order to enable the supercavitating vehicle to realize complex movements such as turning, floating, and variable speed during underwater operations, the variable structure cavitator located at the head plays a key role, and it should realize effective control of cavitation to meet The cavitation scale matches the vehicle body during full-speed variable-speed navigation, so that stable, efficient drag-reducing, and shape-controllable supercavitation can be generated.

[0003] The shape o...

Claims

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