Title:
GEAR MECHANICAL METAMATERIAL WITH LARGE-RANGE CONTINUOUSLY ADJUSTABLE ELASTIC PARAMETERS
Document Type and Number:
WIPO Patent Application WO/2022/095962
Kind Code:
A1
Abstract:
Disclosed is a gear mechanical metamaterial with large-range continuously adjustable elastic parameters, the gear mechanical metamaterial comprising a gear array, a frame and connecting shafts. The gear array is formed by periodically extending a mechanical metamaterial cell in an x direction and a y direction, wherein the cell is composed by arranging a plurality of gears, and adjacent gears mesh with each other. Each gear comprises one central hole and two centrosymmetric special-shaped holes, wherein the thickness of cantilevers between the special-shaped holes and an outer wall of the gear is uniformly increased or decreased. The connecting shafts are arranged in the central holes of the gears; and the gear array is connected to the frame by means of the connecting shafts. Elastic parameters, such as the equivalent Young's modulus, shear modulus, damping and anisotropy, of the mechanical metamaterial provided by the present invention are all closely related to the thickness of the cantilevers at meshing points, and all the gears in the metamaterial can be rotated by rotating any gear in the metamaterial, such that the thickness of the cantilevers at the meshing points is changed, and the smooth and continuous regulation and control of the elastic parameters of the mechanical metamaterial are thus realized.
Inventors:
FANG XIN (CN)
WEN JIHONG (CN)
YU DIANLONG (CN)
WEN JIHONG (CN)
YU DIANLONG (CN)
Application Number:
PCT/CN2021/129010
Publication Date:
May 12, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
NATIONAL UNIV OF DEFENSE TECHNOLOGY (CN)
International Classes:
F16H1/28; F16H1/22; F16H57/00; G06F30/17
Foreign References:
| US20180047259A1 | 2018-02-15 | |||
| US20030015051A1 | 2003-01-23 | |||
| CN109063300A | 2018-12-21 | |||
| CN107766670A | 2018-03-06 | |||
| CN109869447A | 2019-06-11 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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