Supercavitating navigation body model with internal steering gear

Abstract

A supercavitating navigation body model with an internal steering gear comprises a head cone section with a cavitation device and a cabin with an empennage. The cabin comprises a pressure measuring cabin section, a motor cabin section, a feedback cabin section and an empennage cabin section, the adjacent cabin sections are fixedly connected and sealed, the steering gear is arranged in the cabin and comprises a transmission shaft driven by a motor and a speed reducer, the transmission shaft is provided with a rotary encoder, one shaft end of the transmission shaft is fixedly connected with a driving bevel gear, the two ends of a hollow shaft are respectively and fixedly connected with a rudder spindle, the axis of the hollow shaft is perpendicular to the axis of the transmission shaft, the hollow shaft is provided with a driven bevel gear meshed with the driving bevel gear for transmission, the motor and the speed reducer are fixedly installed in the motor cabin section, the rotary encoder is located in the feedback cabin section, the transmission shaft penetrates through the feedback cabin section and stretches into the empennage cabin section, and the two rudder spindles are rotataby supported against the empennage cabin section and form the empennage. The steering gear can be arranged in the supercavitating navigation body model in an integrated mode, and active control and angle feedback for the two rudder spindles can be achieved.

Description

technical field [0001] The present invention relates to the technical field of supercavitating underwater vehicle hydrodynamic testing, in particular to a supercavitating underwater vehicle model, and in particular to the integrated arrangement of steering gear devices capable of active control and angle feedback of two rudder axes A supercavitating vehicle model inside a supercavitating vehicle model. Background technique [0002] When the vehicle moves at high speed in the fluid, the fluid pressure on the surface of the vehicle will decrease. When the speed of the vehicle increases to a certain critical value, the pressure of the fluid will reach the vaporization pressure. The phase changes to the vapor phase, which is the phenomenon of cavitation. With the continuous increase of the speed of the vehicle, the cavitation phenomenon moves backward and expands along the surface of the vehicle, and then develops into supercavitation and forms supercavitation. Since the frict...

AI Technical Summary

Problems solved by technology

In previous maneuvering tests of vehicle models, especially the manipulation tests of supercavitating underwater vehicle models, the structure of the supercavitating vehicle test model usually includes a head cone section and a cabin body, and the head cone section is fixedly connected to the cabin body , the rear end of the cabin is equipped with an empennage, and the front end of the head cone section is sleeved with a ventilation bowl, and the front end of the ventilation bowl is equipped with a cavitator. Outside the test model, the former cannot accurately capture the hydrodynamic characteristics of the vehicle under dynamic maneuvering conditions, while the latter has higher requirements for laboratory conditions

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