中国机械工程2025，Vol.36Issue(4)：857-863,887,8.DOI:10.3969/j.issn.1004-132X.2025.04.023
连续多稳态齿轮元胞机械超结构及其力学性能
Continuous Multi-stable Gear Cell Mechanical Metastructures and Mechanics Properties
摘要
Abstract
In order to expand the forms of mechanical metastructures and optimize the dynamic adjustment ability of mechanical metastructures,a micro gear unit structure was designed,which was periodically arranged in a two-dimensional plane to form a metastructure.The structural design princi-ple and stability of the metastructure were analyzed.It is demonstrated that continuous and stable tun-able of mechanics properties may be achieved by the designed metastructure.The extensive mechanics properties of this metastructure,including statics and dynamics,were analyzed through finite element simulation method.The results indicate that the elastic modulus of the externally meshed gear cells has a tuning range exceeding 10 times,while that of the internally meshed planetary gear cells exceeds 200 times.A considerable tunable range is also observed in the shear modulus.Additionally,the con-tinuous change of the natural frequency and frequency amplitude curve may be realized by this gear unit-based metastructure,providing a new idea for the design of materials aimed at vibration reduc-tion.Finally,a variety of metastructure vibration reduction devices were designed based on this micro gear unit,demonstrating the unique advantages and broad application prospects in vibration reduction and dynamic control.关键词
机械超结构/齿轮元胞/力学性能/连续可调/减振结构Key words
mechanical metastructure/gear cell/mechanics property/continuously tunable/vi-bration-reduction structure分类
通用工业技术引用本文复制引用
莫帅,黄轩,黄祖瑞,张伟..连续多稳态齿轮元胞机械超结构及其力学性能[J].中国机械工程,2025,36(4):857-863,887,8.基金项目
国家自然科学基金(52265004) （52265004）
广西科技重大专项(桂科AA23073019) （桂科AA23073019）
数字制造装备与技术国家重点实验室开放基金(DMETKF2021017) （DMETKF2021017）
广西研究生教育创新计划(YCSW2024028) （YCSW2024028）
