Impact wave composite energy dissipation protection device

Abstract

The invention discloses an impact wave composite energy dissipation protection device, which comprises a reflection energy dissipation layer and a polygonal pyramid sandwich layer, wherein the reflection energy dissipation layer is made into a flat plate shape by hard materials; the polygonal pyramid sandwich layer comprises an upper carbon fiber panel, a lower carbon fiber panel and a plurality of sandwich rod repeating units arranged between the two carbon fiber panels; each sandwich rod repeating unit comprises at least three sandwich rods; one ends of a plurality of sandwich rods of each sandwich rod repeating unit are fixedly connected with the upper carbon fiber panel to form a connecting node; the other ends of the plurality of sandwich rods of each sandwich rod repeating unit are radically and fixedly connected with the lower carbon fiber panel to form a second connection point; the connection is repeated in such a way until the sandwich rod repeating units are uniformly distributed between the two carbon fiber panels to form a polygonal pyramid network. The impact wave composite energy dissipation protection device has the advantages that through compounding the multilayer energy dissipation structure, the energy dissipation absorption on impact waves with different wave lengths can be realized; the buffer effect on the impact wave energy is enhanced.

Description

technical field [0001] The invention relates to a shock wave composite energy dissipation protection structure based on energy reflection and buffer deformation, in particular to a shock wave composite energy dissipation protection device, which can be used in water conservancy projects and national defense fields under terrorist attacks or war conditions to protect cascade heights in western my country. Protection of large water conservancy projects such as dam groups. Background technique [0002] In recent years, terrorist bombings have emerged in the world one after another, targeting civilian facilities and innocent people and causing serious personal injury and property loss undoubtedly also fall into the category of disasters. From the analysis of numerous terrorist bombing incidents, we know that suicide car bombs and human bombs are the main ways terrorists choose to attack. Most of their targets are embassies, subway stations, subway stations, bus stations and spo...

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Problems solved by technology

[0003] At present, one type of anti-blast design does not consider the stress wave effect of the underwater explosion load, but directly considers the explosion load by amplifying the static load, and adopts the method of increasing the structural stiffness in the design, but because this method will make the building The overall rigidity increases, but it is easy to cause the overall damage of the building; the other type of anti-blast design considers the stress wave effect, but most of them are single-layer soft materials, which can only buffer and absorb the impact stress wave, and cannot reflect energy. The explosion-proof effect is not ideal, the structural bearing capacity is limited, and the device molding process is complicated, the cost is high, and the impact energy-absorbing structure made is heavy

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