Front and rear dual-drive all-electric permanent-magnet shaftless vector propulsion structure for high-speed submarine

Abstract

The invention discloses a front and rear dual-drive all-electric permanent-magnet shaftless vector propulsion structure for a high-speed submarine. The front and rear dual-drive all-electric permanent-magnet shaftless vector propulsion structure comprises a front all-electric permanent-magnet shaftless vector propeller, a submarine cavitation maintaining housing and a rear all-electric permanent-magnet shaftless vector propeller, wherein a front anti-marine organism housing is mounted at the front end of the front all-electric permanent-magnet shaftless vector propeller; a front ternary vectorrectification nozzle is mounted at the rear end of the front all-electric permanent-magnet shaftless vector propeller; and a rear anti-marine organism housing is mounted at the front end of the rearall-electric permanent-magnet shaftless vector propeller, and a rear ternary vector rectification nozzle is mounted at the rear end of the rear all-electric permanent-magnet shaftless vector propeller. According to the front and rear dual-drive all-electric permanent-magnet shaftless vector propulsion structure disclosed by the invention, through the front all-electric permanent-magnet shaftless vector propeller, pressure difference generated in the front-and-rear direction is effectively balanced during the advancement process of the submarine, the negative pressure resistance generated by the fluid during the advancement process of the submarine is significantly reduced, an auxiliary power source is provided for the submarine, heat release is reduced, and noises and efficiency loss are reduced; and through the front ternary vector rectification nozzle and the rear ternary vector rectification nozzle, the turbulence phenomenon generated by the propeller can be effectively reduced, thecruising speed can be significantly increased, and the invisibility can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of submarine propulsion, and in particular relates to a front and rear double-drive all-electric permanent magnet shaftless vector propulsion structure for high-speed submarines. Background technique [0002] The resistance generated by the submarine during underwater navigation comes from the compound resistance produced by fluid (water), and these recheck resistances are mainly composed of pressure difference resistance, friction resistance, wave resistance and protrusion resistance. Pressure difference resistance is also called eddy resistance, which means that when the submarine is sailing, the fluid will form a shuttle-type fluid when it passes through the surface of the submarine. Due to different reasons such as fluid flow rate and direction, a pressure difference will be generated in the overall structure of the shuttle-type fluid. The ideal shuttle-type fluid is completely symmetrical except for the...

AI Technical Summary

Problems solved by technology

Great results have been achieved on a small scale, but because the air bubbles cannot be made very large and cannot wrap large objects such as submarines, it has not been successful on the scale of submarines.

For the differential pressure resistance, the existing solutions mainly focus on solving the differential pressure resistance indirectly by overcoming the protrusion resistance and frictional resistance, and there are no other very effective technical means

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