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Telescopic type flexible rectangular pyramid sandwich structure for underwater explosion energy dissipation

A technology of underwater explosion and sandwich structure, applied in blasting and other directions, can solve problems such as poor plasticity and insufficient shock resistance, achieve high specific strength, improve self-shock absorption capacity, and have strong functional expansion

Inactive Publication Date: 2017-07-21
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a scalable flexible quadrangular pyramid sandwich structure for underwater explosion energy dissipation, which solves the problems of insufficient shock resistance and poor plasticity of the existing structure, so that it can be applied to underwater explosion energy dissipation. Can buffer area

Method used

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  • Telescopic type flexible rectangular pyramid sandwich structure for underwater explosion energy dissipation
  • Telescopic type flexible rectangular pyramid sandwich structure for underwater explosion energy dissipation
  • Telescopic type flexible rectangular pyramid sandwich structure for underwater explosion energy dissipation

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like figure 1 , image 3 and Figure 5 As shown, a telescopic flexible quadrangular pyramid sandwich structure for underwater explosion energy dissipation includes two metal panels 1, a plurality of hemispherical nodes 2 respectively arranged on the opposite surfaces of the two metal panels 1 and clips. The core rod, the hemispherical node 2 is a steel hemisphere with four symmetrical connection points on the spherical surface; one end of the four sandwich rods is connected to a hemispherical node 2 on one of the metal panels 1 The points are connected to form a quadrangular pyramid unit with the hemispherical node 2 as the apex. The other ends of the four sandwich rods are respectively connected to the connection points of the four hemispherical nodes 2 on the opposite metal panel 1. A single quadrangular pyramid unit There are five hemispherical nodes 2 ins...

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Abstract

The invention discloses a telescopic type flexible rectangular pyramid sandwich structure for underwater explosion energy dissipation. The structure is characterized by comprising two metal panels, multiple semispherical nodes arranged on the opposite surfaces of the two metal panels and sandwich rods. The semispherical nodes are steel hemispheres. The spherical face of each semispherical node is provided with four symmetrical connection points. One ends of the four sandwich rods are connected with the connection points on one semispherical node on one metal panel, and a rectangular pyramid unit with the semispherical node as the vertex is formed. The other ends of the four sandwich rods are connected with the connection points on the four semispherical nodes on the other opposite metal panel, and the four semispherical nodes on the other opposite metal panel are used as new vertexes to form a new rectangular pyramid unit with the other three sandwich rods. The operation is cycled and repeated till a rectangular pyramid network structure is formed between the two metal panels. According to the telescopic type flexible rectangular pyramid sandwich structure, the structure is simple and stable, and the damping and shock resistance are greatly improved through the simple structure.

Description

technical field [0001] The invention relates to the field of composite structures, in particular to a telescopic flexible quadrangular pyramid sandwich structure used for underwater explosion energy dissipation. Background technique [0002] As a major country in hydropower generation, my country has built a large number of large cascade dams on important rivers such as the Yangtze River and the Yellow River. The dams also bear the risk of being attacked by terrorists. Estimated disasters and losses, therefore, the safety protection of the dam is particularly important. For underwater explosions, passive protection measures are currently used to improve the anti-explosion performance of dams, but there are few studies on underwater anti-explosion of dams and there is no mature dam protection device at present. The lattice structure is a new type of structure that came into being. It has the advantages of high specific stiffness, high specific strength, strong designabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D5/045
CPCF42D5/045
Inventor 杨思盟吕思远严鹏张翼田颖琳黄泽浩冯梦珂李钰珩孙启航
Owner WUHAN UNIV
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