Impact-resistant energy absorption device of axial corrugated honeycomb sandwich plates

Abstract

The invention discloses an impact-resistant energy absorption device of an axial corrugated honeycomb sandwich plate. The impact-resistant energy absorption device comprises an upper layer corrugatedsandwich plate body, a middle axial corrugated honeycomb sandwich layer and a lower corrugated sandwich plate body, wherein the axial corrugated honeycomb sandwich layer consists of an axial corrugated plate and a triangular tube to from a hexagonal composite structure, the upper layer corrugated sandwich plate body and the lower layer corrugated sandwich plate body each are composed of an upper layer flat plate, a sinusoidal corrugated plate and a lower layer flat plate, and the upper layer corrugated sandwich plate body and the lower layer corrugated sandwich plater body are orthogonally distributed in the surfaces so as to enhance transverse and longitudinal energy absorption characteristics. According to the impact-resistant energy absorption device of the axial corrugated honeycomb sandwich plate, the problem that a traditional hexagonal honeycomb structure is relatively large in initial peak load when being subjected to impact load action is solved, the severe initial damage to aprotected structure is avoided, moreover, the stable progressive buckling mode of each cellular element wall surface of a honeycomb is achieved, the platform force of a structure and the specific energy absorption of when the structure is collapsed are increased, the impact energy is more easily converted into the plastic deformation energy of the structure, and then the energy absorption capacity of the honeycomb structure is improved.

Description

technical field [0001] The present invention relates to the technical field of energy absorbing devices, specifically, the present invention is an anti-impact energy-absorbing device for axially corrugated honeycomb sandwich panels, which is suitable for anti-impact energy absorbing systems in fields such as aerospace vehicles and vehicle engineering , or anti-explosion safety protection devices for nuclear energy equipment and ship structures. Background technique [0002] When an accident such as impact, explosion or collision occurs, a strong impact load will act on the structure of the aircraft, ship, etc., causing it to generate strong impact vibration, resulting in serious plastic deformation and damage to the structure, thereby causing the aircraft, ship or vehicle to lose its normal state. The ability to operate can even cause significant loss of life and property. How to ensure that the structure does not suffer serious accidents after being impacted by strong dyna...

AI Technical Summary

Problems solved by technology

[0004] However, during the impact load process, the collapse of the honeycomb structure will generate a large initial peak load, which will directly cause serious initial damage to the structure or the human body.

In addition, with the rapid development of technologies such as aviation and high-speed rail, people have been pursuing higher operating speeds, and the traditional honeycomb structure has been unable to meet the needs of complex and strong dynamic loads.

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