中国机械工程2025，Vol.36Issue(11)：2509-2517,9.DOI:10.3969/j.issn.1004-132X.2025.11.005
连续可调行星齿轮超材料非线性动力学
Nonlinear Dynamics of Continuously Tunable Planetary Gear Metamaterial
摘要
Abstract
A continuous steady-state metamaterial with tunable mechanics was designed based on planetary gears.The excellent tunable mechanics properties of metamaterials were studied,which showed the designed metamaterials had a wide range of programmable stiffness and a significantly tunning band gap.The configuration relationship between tunability and structural parameters was analyzed.Then,a rigid-flexible coupling nonlinear dynamics model of planetary gear metamaterials was established and the dynamics characteristics of planetary gear metamaterials were explored by numerical simulation in the pro-cesses of dynamic tunning.Moreover,the influences of the system dynamic parameters on the bifurcation characteristics and stability were explored under coupling excitations,and the distribution characteristics of the system vibration response with the coupling parameter plane were disclosed.Finally,an improved non-iterative cell mapping method was used to analyze the dependence of the vibration response of the system on the initial conditions.The results show that the planetary gear metamaterials have a wide range of stiff-ness tunability and significantly variable band gap interval.Under the influences of internal and external ex-citations,the system exhibits various dynamics characteristics.The dynamics characteristics of flexible con-struction are mainly affected by structural parameters,and the dynamics characteristics of rigid construction are affected by multiple sets of coupling parameters and initial conditions.关键词
力学超材料/行星齿轮/非线性动力学/吸引域Key words
mechanics metamaterial/planetary gear/nonlinear dynamics/attractive domain分类
通用工业技术引用本文复制引用
莫帅,黄轩,刘文斌,张伟..连续可调行星齿轮超材料非线性动力学[J].中国机械工程,2025,36(11):2509-2517,9.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AA24263074) （桂科AA23073019,桂科AA24263074）
极端服役性能精准制造全国重点实验室开放课题(Kfkt2023-06) （Kfkt2023-06）
智能制造装备与技术全国重点实验室开放课题(IMETKF2025021) （IMETKF2025021）
中国航空发动机集团科技创新平台项目(CXPT-2023-044) （CXPT-2023-044）
