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High-vibration-resistance annular lattice structure

A lattice structure and ring-shaped technology, applied in the design characteristics of spring/shock absorber, shock absorber, elastic shock absorber, etc., can solve the problem that the anti-vibration and energy absorption performance cannot fully meet the needs of engineering equipment, and achieve good performance Effect

Pending Publication Date: 2021-12-21
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the existing lattice structure under the condition of pursuing light weight, the anti-vibration and energy-absorbing performance cannot fully meet the needs of engineering equipment, the present invention provides a high anti-vibration annular lattice material

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments in no way limit the present invention.

[0022] Such as Figure 1-Figure 4 As shown, the present invention provides a lattice sandwich structure with high anti-vibration performance; wherein the matrix sandwich structure matrix consists of an upper panel 1, a lower panel 3 and a plurality of unit cells 2 connected between the upper panel 1 and the lower panel 3 ; The lattice sandwich structure matrix adopted in this embodiment is a new annular unit cell; the unit cell 2 is composed of 2 annular structures and a body-centered cubic unit cell in the middle, and the lattice structure is arranged in an array according to the actual situation; The matrix of the lattice sandwich structure used in this embodiment is composed of a body-centered cubic unit cell structure and a ring structure intersecting.

[0023] Each unit ...

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Abstract

The invention discloses a high-vibration-resistance annular lattice structure. Each unit cell consists of two circular rings and four support rods. The unit cell structures are arranged in an array manner according to actual requirements. Annular structures are combined with body-centered cubic unit cell structures to share stress. After the body-centered cubic unit cell structures at the core collapse, a load is redistributed to an adjacent layer. Therefore, a good vibration resistance effect is achieved, and more energy is absorbed. According to the high-vibration-resistance annular lattice structure, parameter design and selective optimization can be performed on the structure through relatively few parameters (the diameters of the circular rings and the diameters of the cross sections of the circular rings), and materials used and sizes can be modified according to working conditions.

Description

technical field [0001] The present invention is a novel lattice structure with high vibration resistance and energy absorption. The compression failure mechanism of this novel annular lattice structure is completely different from that of ordinary rod-shaped lattice structures (such as body-centered cubic structures). The energy performance is very suitable for energy-absorbing equipment, such as automobile bumpers, anti-collision facilities and some safety protection fields. Background technique [0002] Since the lattice sandwich structure was proposed, its light weight, high specific stiffness and high specific strength have attracted great attention. In addition, it also has special properties such as shock absorption, heat dissipation, sound absorption, and electromagnetic shielding. It is a new type of structural functional material that comprehensively considers factors such as material design, structural design, and functional design. The mechanical properties of th...

Claims

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Application Information

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IPC IPC(8): F16F7/12F16F13/00B32B3/18B33Y10/00B33Y80/00
CPCF16F7/128F16F13/00B32B3/18B33Y10/00B33Y80/00F16F2230/40F16F2226/04F16F2226/048B32B2307/56B32B2605/08
Inventor 龙连春孟传伟
Owner BEIJING UNIV OF TECH