Testing 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 explosion. The test device comprises a high-energy pulse laser and a beam expanding device for expanding laser emitted by the high-energy pulse laser, a hyperbaric cabin is arranged on one side of the beam expanding device far away from the high-energy pulse laser, the hyperbaric cabin is provided with a plurality of light-transmitting pieces for light beams expanded by the beam expanding device to penetrate through, liquid for testing and a focusing piece are arranged in the hyperbaric cabin, and the hyperbaric cabin is further connected with a hydraulic adjusting system for adjusting the pressure of the liquid in the hyperbaric cabin; by the adoption of the technical scheme, explosion can be achieved in liquid in the hyperbaric cabin in the explosion test process, the hydraulic adjusting system adjusts the liquid in the hyperbaric cabin so as to simulate the environment in the deep sea, and in the dynamic process, the stability of the pressure of the liquid in the hyperbaric cabin can be still kept.

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 development of deep-sea resources, the layout of deep-sea space has become an important focus. In order to ensure marine resources and marine rights and interests, it is necessary to improve deep-sea security. Explosion damage effects have become an important topic in the deep sea field. [0003] When the explosion damage effect advances to the deep-sea field, the energy distribution of underwater explosion and the dominant factors of damage effect will change significantly in a 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 velocity of the cavitation...

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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