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Construction and properties of gear mechanical metamaterials
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Shuai MO1, 2, 3, Zurui HUANG1, 2, Yiheng LIU1, 2, Wei ZHANG1
Journal of Vibration Engineering | 2025, 38(10) : 2332 - 2338
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Journal of Vibration Engineering | 2025, 38(10): 2332-2338
Construction and properties of gear mechanical metamaterials
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Shuai MO1, 2, 3, Zurui HUANG1, 2, Yiheng LIU1, 2, Wei ZHANG1
Affiliations
  • 1.State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China
  • 2.School of Mechanical Engineering, Guangxi University, Nanning 530004, China
  • 3.National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing 210016, China
doi: 10.16385/j.cnki.issn.1004-4523.202309024
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Mechanical metamaterials exhibit many counterintuitive mechanical properties by changing their internal geometry. We propose a mechanical metamaterial composed of gears as basic elements. The gear-based mechanical metamaterial proposed here is a multi-stable structure, which can be continuously converted between various stable states through the meshing of gear teeth. The continuous switching between states enables the mechanical metamaterial to exhibit in situ continuously tunable mechanical properties. The mechanical properties of the mechanical metamaterials were studied by using the finite element method. The results show that the gear-based mechanical metamaterials exhibited continuously adjustable stiffness, variable generalized shear stiffness, and adjustable acceleration transmissibility. These unique properties of mechanical metamaterials provide new ideas for creating programmable metamaterials with in situ continuously adjustable mechanical properties, and are expected to be applied in the fields of smart materials and engineering.

mechanical metamaterials  /  gear  /  mechanical properties  /  transmissibility  /  continuously adjustable
Shuai MO, Zurui HUANG, Yiheng LIU, Wei ZHANG. Construction and properties of gear mechanical metamaterials[J]. Journal of Vibration Engineering, 2025 , 38 (10) : 2332 -2338 . DOI: 10.16385/j.cnki.issn.1004-4523.202309024
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Year 2025 volume 38 Issue 10
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.202309024
  • Receive Date：2023-09-07
  • Online Date：2026-02-04
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History
  • Received：2023-09-07
  • Revised：2023-12-06
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Affiliations
    1.State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China
    2.School of Mechanical Engineering, Guangxi University, Nanning 530004, China
    3.National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing 210016, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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