Thin-wall energy absorption device imitating white lotus vein distribution

Abstract

The invention discloses a thin-wall energy absorption device imitating white lotus vein distribution. The device comprises an energy absorption core, the energy absorption core comprises an outer thin-wall round pipe, an inner thin-wall round pipe, main vein rib plates and branch vein rib plates, the outer thin-wall round pipe and the inner thin-wall round pipe are coaxial, one ends of the main vein rib plates intersect at the axis of the inner thin-wall round pipe, the other ends are respectively arranged at intervals along the circumferential direction of the inner thin-wall round pipe, thebranch vein rib plates are arranged in a cavity inside the outer thin-wall round pipe and outside the inner thin-wall round pipe, and the branch vein rib plates are uniformly distributed on the two sides of the main vein rib plate. The branch vein rib plates and the adjacent branch vein rib plates are intersected on the inner surface of the outer thin-wall circular pipe or the outer surface of theouter thin-wall circular pipe. The number of the main vein rib plates is 4-7. According to the invention, the total energy absorption can be enhanced, the specific energy absorption and load efficiency is higher, the passive safety of an automobile is greatly improved, and casualties are reduced; and the whole body is made of aluminum or an aluminum alloy material, so that the weight can be greatly reduced, and the light weight of the automobile can be better met.

Description

technical field [0001] The invention relates to an energy-absorbing device, in particular to a thin-walled energy-absorbing device imitating the distribution of jade lotus leaf veins. Background technique [0002] With the improvement of living standards, automobiles have become an indispensable means of transportation for people to travel. Traffic accidents happen frequently, so the collision safety of automobiles is getting more and more attention. In order to protect the safety of the occupants in the car when a collision occurs, the designers will design a buffer energy-absorbing device at the front of the car to absorb the collision energy, including the car's bumper and thin-walled energy-absorbing devices. The energy-absorbing device in front of the car longitudinal beam can protect the front longitudinal beam from damage and save maintenance costs when a small collision occurs; when a large collision occurs, it can absorb a large amount of collision energy and reduc...

AI Technical Summary

Problems solved by technology

At present, most of the energy-absorbing devices of automobiles adopt metal thin-walled structures, generally smooth circular-section tubes, square-section tubes or cap-shaped cross-section tubes. The energy-absorbing devices of this type of conventional structure have poor energy-absorbing characteristics, and at the beginning of the collision Higher peak force will be generated at all times

In addition, the material utilization rate of the traditional thin-walled energy-absorbing structure is low, and its specific energy absorption value is low, which does not meet the current trend of automobile lightweight

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