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Method for testing strength of explosive for simulated underwater explosion test

A technology of underwater explosion and testing methods, which is applied in the direction of fuel oil testing, measuring devices, material inspection products, etc., can solve problems such as large errors and inaccurate bubble radii, and achieve the effects of reducing test costs, sufficient content, and multiple research angles

Active Publication Date: 2018-06-05
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

so figure 2 The bubble radius calculated by the method is not accurate enough, and the error is large

Method used

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  • Method for testing strength of explosive for simulated underwater explosion test
  • Method for testing strength of explosive for simulated underwater explosion test
  • Method for testing strength of explosive for simulated underwater explosion test

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0054] It is known that R=1m, θ=45°, measure a=0.850m, b=1.334m

[0055] Calculated to get X 1 =1.179m, X 2 =0.235m, X 3 =1.179m, X 4 =0.661m, so X=1.179m.

Embodiment 2

[0057] It is known that m1=1, m2=1.49, m3=1.33, measure h 1 = 0.200m, h 2 = 0.100m, h 3 = 1.025m, and the radius L of the picture taken of the air bubbles = 0.347m.

[0058] Calculation can get sinθ1=0.3285, R=0.300m, figure 2 The radius calculated by the method is 0.336m, and it is found by comparison that figure 2 The method has a margin of error of 12%.

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Abstract

The invention relates to a method for testing strength of explosive for a simulated underwater explosion test. According to the technical scheme, in an explosive strength testing device for an underwater explosion test as shown in the figure, by virtue of a method combining a non-contact laser measurement method and theoretical calculation, two important parameters, a distance between a sensor anda grain and an actual radius of bubbles, in the explosive explosion strength test are accurately obtained. The method disclosed by the invention has the characteristics of being simple in operation,high-efficiency, safe, high in similarity of obtained parameters and actual parameters, accurate and reliable in result and the like.

Description

technical field [0001] The invention belongs to the technical field of underwater explosion tests. In particular, the invention relates to a method for testing the explosion power of a water tank for simulating an underwater explosion test. Background technique [0002] With the gradual development of underwater resources, the use of explosives in underwater construction is also increasing, and the study of the power of explosives in underwater explosions has become an important topic. Underwater explosion research is mainly based on experiments. Researchers have carried out underwater explosion experiments on water bodies of different scales such as pools and tanks, but there are still some problems in obtaining parameters from experiments. [0003] For example, the important analysis object in the test is the pressure signal detected by sensors at different distances, so accurate sensor distance is a prerequisite for analyzing the law. When placing the sensor, the distan...

Claims

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Application Information

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IPC IPC(8): G01N33/22G01N21/84
CPCG01N21/84G01N33/227
Inventor 聂建新王秋实郭学永焦清介梁晓爱
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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