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Title:
THREE-DIMENSIONAL MULTI-CELL MATERIAL HAVING LOCAL THERMAL-TORSION COUPLING EFFECT
Document Type and Number:
WIPO Patent Application WO/2021/147209
Kind Code:
A1
Abstract:
A three-dimensional multi-cell material having a local thermal-torsion coupling effect, relating to the technical field of metamaterials, and formed by several unit cell three-dimensional structures by means of a spatial periodic array. Each unit cell three-dimensional structure comprises an upper layer of honeycomb grid units and a lower layer of honeycomb grid units, and inclined uniform-cross-section straight rods and vertical uniform-cross-section straight rods used for connecting the upper layer of honeycomb grid units and the lower layer of honeycomb grid units, wherein the upper layer of honeycomb grid units and the lower layer of honeycomb grid units are completely the same; adjacent upper and lower layers of honeycomb grid units are arranged in parallel at equal intervals and aligned along centroids; nodes of the adjacent upper and lower layers of honeycomb grid units are connected in a staggered manner by means of the inclined uniform-cross-section straight rods, and the nodes of the adjacent upper and lower layers of honeycomb grid units are vertically connected by means of the vertical uniform-cross-section straight rods. The three-dimensional multi-cell material is used as a sensor or an actuator in a micromachine capable of achieving reciprocating motion without an external force in a space environment with large temperature change or periodic temperature change.

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Inventors:
FU MINGHUI (CN)
LONG LIRONG (CN)
HU LINGLING (CN)
Application Number:
PCT/CN2020/089309
Publication Date:
July 29, 2021
Filing Date:
May 09, 2020
Export Citation:
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Assignee:
UNIV SUN YAT SEN (CN)
International Classes:
F03G7/06; B32B3/12; B32B7/08
Domestic Patent References:
WO2018227302A12018-12-20
Foreign References:
CN109822981A2019-05-31
US20180194106A12018-07-12
CN109145504A2019-01-04
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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