A reusable multistable energy-absorbing array combination structure

Abstract

The invention discloses a reuseable multistable energy absorption array composite structure. The structure comprises rod type energy absorption modules (1) and an assembled bracket (2); the rod type energy absorption modules are formed by connecting multistable thin-wall corrugated pipes with equal-diameter guide connecting rods; the composite structure is formed by arranging multiple rod type energy absorption modules on the assembled bracket in an array mode; axes of the rod type energy absorption modules are in parallel, are consistent with the impact direction without mutually interfering;the bottom surfaces are arranged in an array mode to form a square plane; and the square plane is perpendicular to the impact direction, and can repeatedly bear impact loads. The structure has the following advantages: the recycling is achieved; the impact information can be stored; and the elongation height and the array arrangement of the energy absorption modules can be adjusted to meet different energy absorption impact resisting demands.

Description

technical field [0001] The invention relates to an energy absorbing device, more precisely, it relates to a reusable multistable energy absorbing array combination structure with an energy absorbing module made of a multistable thin-walled bellows as the core, which belongs to advanced structures and materials field of design and manufacture. The energy-absorbing device is suitable for vehicles, trains and other means of transportation, spacecraft, and anti-impact protection systems for air-dropped objects, or anti-explosion impact protection systems for nuclear energy facilities. Background technique [0002] Accidents such as collisions and explosions will cause the structure to be damaged under the action of strong impact loads, causing serious loss of life and property. Therefore, how to propose a reasonable design plan and formulate effective fixed or temporary installations based on the overall performance of the structure after impact Protective measures, designing i...

AI Technical Summary

Problems solved by technology

But at the same time, there are certain limitations: when axial plastic deformation occurs, the telescopic pipe wall will bend inward or outward relative to the undeformed pipe wall, the shape of the pipe wall cannot be restored, and the replacement cost is high; any Instantaneous impact information; unable to design customized anti-crash devices according to demand

Therefore, the current thin-walled anti-collision structure cannot meet the relevant requirements to a certain extent.

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