Nonreciprocal bending mechanical metamaterials and their design methods

A metamaterial, non-reciprocal technology, used in electrical digital data processing, instrumentation, geometric CAD, etc., to solve problems such as the lack of non-reciprocal bending materials

Active Publication Date: 2022-06-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, currently non-reciprocal bendable materials are still very scarce, and their development and design still face great challenges

Method used

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  • Nonreciprocal bending mechanical metamaterials and their design methods
  • Nonreciprocal bending mechanical metamaterials and their design methods
  • Nonreciprocal bending mechanical metamaterials and their design methods

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Embodiment Construction

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that the described embodiments are in fact only some, not all, of the embodiments of the present invention, and are merely illustrative in fact and in no way intended to limit the present invention and its application or use. The scope of protection of this application should be determined by the appended claims.

[0050] combine Figure 1 to Figure 9 shown, figure 1 is the front view of the non-reciprocal bending mechanics metamaterial provided by the present invention, figure 2 A top view of the non-reciprocal bending mechanics metamaterial provided by the present invention, image 3 is a side view of the non-reciprocal bending mechanics metamaterial provided by the present invention, Figure 4 for figure 1 Schematic diagram of the unit cell s...

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Abstract

The present application discloses a non-reciprocal bending mechanical metamaterial and a design method thereof. The non-reciprocal bending mechanical metamaterial comprises a plurality of unit cell structures periodically arranged and interconnected in a three-dimensional space; , the unit cell structure includes the first division, the second division and the third division, along the second direction, the unit cell structure also includes the fourth division and the fifth division arranged oppositely; along the third direction, the unit cell structure The cellular structure also includes the sixth division and the seventh division which are arranged oppositely; a kind of non-reciprocal bending mechanical metamaterial provided by the present invention realizes the natural material by breaking the space inversion symmetry of the three-dimensional structure and introducing nonlinearity The asymmetric positive and negative bending stiffness properties that do not have provide a new paradigm for mechanical functional metamaterials.

Description

technical field [0001] The invention relates to the field of mechanical metamaterial structure design, in particular to a nonreciprocal bending mechanical metamaterial and a design method thereof. Background technique [0002] According to the Maxwell-Bettis reciprocity theorem in continuum mechanics, the forward and reverse bending deformations of most natural materials should maintain symmetry and reciprocity. Under the same magnitude of forward and reverse bending moment loads, the forward and reverse bending deflection and rotation angle responses of the material are symmetrical and consistent, with the same symmetrical forward and reverse bending stiffness. [0003] If we can break through the limitation of Maxwell-Betis reciprocity theorem, prepare non-reciprocal bending materials with asymmetric forward and reverse bending stiffness characteristics, and obtain extraordinary mechanical properties that are not found in natural materials, which will provide mechanical sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/10G06F119/14
CPCG06F30/10G06F2119/14
Inventor 洪家旺伦应焯任琦
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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