Two-phase contrariant gel flexible safety guard

Abstract

The invention provides a two-phase contrariant gel flexible safety guard. The safety guard comprises a top plate, a bottom plate, mobile columns, fixed columns and a side wall which are made of an aerogel solid-state material, as well as a sealed cavity which is enclosed by the top plate, the bottom plate and the side wall and is filled with a liquogel fluid with a shear thickening effect, wherein a plurality of mobile columns are distributed in the internal space enclosed by the top plate, the bottom plate and the side wall, the top end of each mobile column is connected with the top plate, while the bottom end of each mobile column is free; the periphery of each mobile column is enclosed by a plurality of fixed columns, a clearance is reserved between adjacent fixed columns; the top and bottom ends of the fixed columns are respectively connected with the top plate and the bottom plate, and can be deformed along with deformation of the top plate and the bottom plate. According to the composite plate, external impact energy can be transformed into deformation energy and structural damping internal energy of the top plate, the bottom plate, the fixed columns, the mobile columns and the side wall formed by aerogel, interface energy and internal energy of liquogel fluid flowing and friction internal energy between the liquogel fluid and solid-state aerogel. The flexible plate has light weight, randomly customized shape and wide application range.

Description

technical field [0001] The invention relates to a safety protection composite board, in particular to a two-phase counter trend gel flexible safety protection board. Background technique [0002] At present, in the fields of aerospace, automobile manufacturing, and human body protection, engineers and technicians widely use hydraulic buffers, thin-walled components, etc. to absorb the energy brought by impact, so as to achieve the purpose of protecting the target structure. The principle of hydraulic buffer energy absorption is that the impact acts on the hydraulic device, and the viscous damping effect of the oil is used to absorb and convert part of the impact energy into the heat energy of the oil through the orifice and dissipate it. The hydraulic buffer device has a complex structure, inconvenient maintenance, high sealing requirements, and is sensitive to changes in ambient temperature, resulting in high production and maintenance costs. The energy absorption of thin-...

AI Technical Summary

Problems solved by technology

The hydraulic buffer device has a complex structure, inconvenient maintenance, high sealing requirements, and is sensitive to changes in ambient temperature, resulting in high production and maintenance costs

The energy absorption of thin-walled components is to use the thin-walled structure to deform or even crush to absorb and consume impact energy when it is subjected to external force. Alternating impact, not reusable

Moreover, in the field of human body protection, bulletproof vests or one-piece protective clothing based on thin-walled components cannot be deformed freely, and the user's actions are greatly restricted, which is not conducive to the user's completion of tasks.

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