Surface drag reduction simulation testing device for underwater vehicle under deep-sea high-pressure environment

Abstract

The invention relates to the field of testing devices, and discloses a surface drag reduction simulation testing device for an underwater vehicle under the deep-sea high-pressure environment. The device comprises a high-pressure sealed cabin and a hydraulic cylinder, wherein the high-pressure sealed cabin is equipped with a sealing cover, and the sealing cover is equipped with a watertight joint;the hydraulic cylinder is fixed at one end of high-pressure sealed cabin, a piston rod of the hydraulic cylinder extends from the hydraulic cylinder into the high-pressure sealed cabin and always runsthrough the high-pressure sealed cabin in the movement process, the part, which is located in the high-pressure sealed cabin, of the piston rod is connected with a surface micro-structure underwatervehicle model and a tension sensor, one end of the tension sensor is connected with the surface micro-structure underwater vehicle model, the other end is connected with the piston rod, and a wire onthe tension sensor is connected with the watertight joint. The simulation testing device can simulate the deep-sea high-pressure environment, and solves a problem that the existing devices can only simulate ships or vehicles sailing on the water surface or in shallow water areas. The device is simple in structure, easy to operate and good in experimental effect.

Description

technical field [0001] The invention relates to the field of testing devices, in particular to a drag reduction simulation test device for the surface of an underwater vehicle in a deep-sea high-pressure environment. Background technique [0002] Drag reduction and noise reduction are the most direct and effective means to improve the performance of underwater vehicles. Reducing navigation resistance can increase the speed of the vehicle and reduce energy loss on the one hand, and increase the ammunition loading on the other hand. The reduction of resistance is often accompanied by the reduction of flow noise. Low-resistance and low-noise underwater vehicles have high economic and military value. Therefore, new types of low-resistance underwater vehicles have attracted more and more research by experts and scholars. . [0003] Non-smooth surface drag reduction is a new type of drag reduction that is generally favored by experts and scholars. It changes the turbulence near t...

AI Technical Summary

Problems solved by technology

[0004] It has been found through research that, due to the greater environmental pressure, the underwater vehicle sailing in the deep-sea high-pressure environment has a large difference in navigation resistance compared with the aircraft navigating on the water surface. However, some current aircraft Surface microstructure drag reduction test device can only simulate ships or aircraft navigating in water surface or shallow water area, and cannot test the drag reduction effect of deep water aircraft with surface microstructure

Images