Buffering, damping and energy-absorbing structure with negative Poisson's ratio effect

Abstract

The invention discloses a buffering, damping and energy-absorbing structure with a negative Poisson's ratio effect. The buffering, damping and energy-absorbing structure comprises a first-layer force flow concentration structure, a second-layer buffering transverse impact structure and a third-layer buffering longitudinal impact mechanism. The first-layer force flow concentration structure is a negative Poisson's ratio component with a folding trend, a descending piece is arranged below the first-layer force flow concentration structure, and the descending piece changes the direction of force and transmits the force downwards to the two sides at the same time; the second-layer transverse impact buffering structure comprises bearing pieces and second-stage transverse buffering pieces located on the outer sides of the bearing pieces, the two bearing pieces are oppositely arranged and matched with the descending piece, and when the descending piece descends, the two bearing pieces translate in the transverse direction to convert longitudinal impact into transverse impact, and the second-stage transverse buffering pieces conduct buffering, damping and energy absorption; the third-layer buffering longitudinal impact mechanism is detachably arranged below the second-layer buffering transverse impact structure, and the third-layer buffering longitudinal impact mechanism is provided with a third-stage buffering shock absorption and energy absorption structure to absorb longitudinal residual impact energy of the second-layer buffering transverse impact structure.

Description

technical field [0001] The invention belongs to the technical field of buffering, energy-absorbing and anti-collision, and in particular relates to a buffering, shock-absorbing and energy-absorbing structure with a negative Poisson's ratio effect. Background technique [0002] Disc springs, leaf springs and other parts with buffering and energy-absorbing functions can absorb energy and alleviate impacts, but they have a single structure, poor energy-absorbing efficiency and are easily damaged; although some buffering and anti-collision structures have improved energy-absorbing efficiency, their structures are too large. It is complicated, and the material is not easy to replace after damage, resulting in high cost of use. [0003] Porous ceramic buffer material 33 is cheap and has good energy absorption effect, because the inner porous skeleton of the extruded porous ceramic material will break and the interior will rub against each other after the skeleton is broken, so tha...

AI Technical Summary

Problems solved by technology

[0002] Disc springs, leaf springs and other parts with buffering and energy-absorbing functions can absorb energy and alleviate impacts, but they have a single structure, poor energy-absorbing efficiency and are easily damaged; although some buffering and anti-collision structures have improved energy-absorbing efficiency, their structures are too large. Complicated, and the material is not easy to replace after damage, resulting in high cost of use

Images