A test device for simulating deep sea underwater explosion

Abstract

The invention relates to the technical field of underwater explosion test devices, and provides a test device for simulating deep-sea underwater explosions, including a high-energy pulse laser and a beam expander for expanding the laser beam emitted by the high-energy pulse laser. One side of the beam expander on the side of the energy pulse laser is provided with a hyperbaric chamber, which is provided with a plurality of light-transmitting parts for the beam expanded by the beam expander to pass through, and the test liquid and focusing parts are arranged in the hyperbaric chamber , the hyperbaric cabin is also connected with a hydraulic adjustment system for adjusting the pressure of the liquid in the hyperbaric cabin; with this technical scheme, an explosion can be realized in the liquid in the hyperbaric cabin, and during the explosion test, the hydraulic adjustment system has no effect on the hyperbaric cabin. The liquid in the chamber is adjusted to simulate the environment in the deep sea, and in the dynamic process, the liquid pressure in the hyperbaric chamber is still kept stable.

Description

technical field [0001] The invention relates to the technical field of underwater explosion test devices, in particular to a test device for simulating deep sea underwater explosions. Background technique [0002] With the advancement of deep-sea resource development, the layout of deep-sea space has become an important concern. In order to ensure marine resources and marine rights and interests, it is necessary to improve deep-sea security. The blast damage effect has become an important topic in the deep sea field. [0003] When the blast damage effect is advanced to the deep sea area, the energy distribution of the underwater explosion and the dominant factors of the damage effect will change significantly under the strong high pressure environment. Compared with the explosion under normal pressure, the cavitation collapse period of the underwater explosion will be reduced by an order of magnitude for every 100 meters of diving. Therefore, the interface oscillation spee...

AI Technical Summary

Problems solved by technology

This may enhance the induced cavitation pulsation load, and then affect the energy distribution criteria of key physical quantities such as shock wave, cavitation pulsation, and high-speed jet in the process of cavitation collapse, thereby affecting the damage mechanism and mechanism of underwater explosion in deep sea environment. Effect

However, no corresponding research has been carried out in the existing technologies, and the conditions for large-scale sea trials are far from being met.

The need to establish a mechanism experiment platform is very urgent. At present, most of the high-pressure chambers, that is, pressure chambers, are used to simulate the environment of high back pressure in the deep sea. However, they are used to study static or quasi-static experimental processes. For underwater explosions, which are unsteady and various The problem of strong coupling of two physical phenomena cannot be solved

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