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Method for determining thickness of wall of container for simulating explosion test in deepwater environment

An explosion test and determination method technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of difficult implementation of container wall thickness determination method, short positive pressure action time, and inability to obtain wall thickness, etc., so as to reduce subjective factors and simplify the determination method , the effect of meeting the actual bearing needs

Active Publication Date: 2014-06-04
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods mainly have the following two difficulties: First, compared with the explosion in the air, the peak value of the shock wave in the underwater explosion is larger, but the positive pressure action time is shorter, which is only 1 / 100 of the shock wave in the air with the same peak value. If the peak value of the shock wave reflection overpressure is used directly as the working pressure, and the wall thickness is determined according to the method for determining the wall thickness of the air medium explosion vessel, the determined wall thickness value will be very large, which makes it difficult to be practically applied; second, the selection of the dynamic coefficient Generally based on the practical experience of the designer, there is often a certain degree of blindness, and it is impossible to obtain a suitable wall thickness.
Therefore, the existing method for determining the wall thickness of the vessel used in the simulated deep-water environmental explosion test is difficult to implement

Method used

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  • Method for determining thickness of wall of container for simulating explosion test in deepwater environment
  • Method for determining thickness of wall of container for simulating explosion test in deepwater environment
  • Method for determining thickness of wall of container for simulating explosion test in deepwater environment

Examples

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Embodiment 1

[0061] A method for determining the wall thickness of a container used in a simulated deep-water environmental explosion test. Its specific steps are:

[0062] Step 1. Determine the technical parameters of the container (or container for short) used to simulate the explosion test in the deep water environment

[0063] ① Container structure: The container is an axisymmetric structure, that is, a cylindrical structure composed of a straight cylindrical section in the middle and standard elliptical heads at both ends;

[0064] ②Vessel size: the effective test space in the container cylinder, the specific size is Ф2000mm×3000mm (including the elliptical head part);

[0065] ③ Simulated water depth: the depth of water when the pressure that the object bears underwater is equal to the static pressure loaded after the container is filled with water. The simulated water depth in this embodiment is 200m, that is, the loaded hydrostatic pressure after the container is filled with water...

Embodiment 2

[0083] A method for determining the wall thickness of a container used in a simulated deep-water environmental explosion test. Its specific steps are:

[0084] Step 1. Determine the technical parameters of the container (or container for short) used to simulate the explosion test in the deep water environment

[0085] ①Container structure: The container is an axisymmetric structure, and the main body of the container is a spherical structure;

[0086] ② Container size: the effective test space in the container cylinder, with a diameter of 3000mm;

[0087] ③ Simulated water depth: the depth of water when the pressure that the object bears underwater is equal to the static pressure loaded after the container is filled with water. The simulated water depth in this embodiment is 300m, that is, the loaded hydrostatic pressure after the container is filled with water is 3MPa ;

[0088] ④ Allowable charge: on the premise that the container does not undergo plastic deformation, the...

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Abstract

The invention relates to a method for determining the thickness of the wall of a container for simulating an explosion test in a deepwater environment. According to the technical scheme, under the conditions that the constraint condition of the container (the container is called for short) for simulating the explosion test in the deepwater environment, the simulated water depth, the allowable powder charging amount, the container structure, the container size and the container materials are known, a model (please see the formula in the specification) for determining the thickness of the wall of the container for simulating the explosion test in the deepwater environment is built, and then the thickness delta e of the wall of the container is obtained according to the model for determining the thickness of the wall of the container. The method has the advantages of being capable of meeting actual bearing requirements and lowering processing cost, and being safe, reliable and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of containers for explosion tests. In particular, the invention relates to a method for determining the wall thickness of a container used in a simulated deep-water environmental explosion test. Background technique [0002] As underwater explosions are more and more widely used in military and economic construction, rational use of underwater explosion energy can effectively destroy targets, and effective protection of hydraulic facilities and buildings in complex underwater explosion environments can maximize Issues such as reducing the negative effects of explosions have become common concerns of blasting engineering applications and academic research institutions. Due to the extremely complex mechanism of underwater explosion, only a few problems have analytical solutions, and the complex environment of underwater explosion also leads to long research cycle, high cost, low success rate, and poor operabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/08
Inventor 钟冬望李琳娜何理司剑峰朱宽刘建程黄小武殷秀红操鹏
Owner WUHAN UNIV OF SCI & TECH
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