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Rotation-induced axial oscillation of a composite nanoconvertor at low temperature
Journal of Vibration and Control ( IF 2.3 ) Pub Date : 2020-06-30 , DOI: 10.1177/1077546320937112
Bo Song 1 , Kun Cai 2 , Jiao Shi 1, 3 , Qing-Hua Qin 4
Affiliation  

We propose a model of a nanostructure which can transform an input rotation into an output oscillation. In the model, the rotor has two identical internally hydrogenated deformable parts. The mechanism is that the rotation-induced centrifugal force and van der Waals force drive the recoverable deformation of the hydrogenated deformable parts, which gives rise to the axial translation of the free end of the rotor. Once the two hydrogenated deformable parts deform periodically, the free end of the rotor oscillates periodically in the axial direction. Molecular dynamics simulations are conducted to reveal the dynamic response of the system at low temperature. Four main types of deformation and the first three orders of vibration responses of the hydrogenated deformable parts are analyzed. Synchronous breathing vibration of the two hydrogenated deformable parts produces ideal oscillation with large amplitude. Asynchronous axial vibration of the hydrogenated deformable parts reduces the oscillation amplitude or produces beat vibration. The way to control the amplitude of the axial oscillation/vibration is given.



中文翻译:

复合纳米转换器在低温下旋转诱导的轴向振荡

我们提出了一种纳米结构的模型,该模型可以将输入旋转转换为输出振荡。在模型中,转子具有两个相同的内部氢化可变形部分。其机理是旋转引起的离心力和范德华力驱动氢化可变形零件的可恢复变形,从而引起转子自由端的轴向平移。一旦两个氢化的可变形部分周期性地变形,转子的自由端就会在轴向方向上周期性地振荡。进行分子动力学模拟以揭示系统在低温下的动态响应。分析了氢化可变形零件的四种主要变形类型和振动响应的前三个阶。两个氢化可变形部分的同步呼吸振动会产生大振幅的理想振荡。氢化可变形部件的异步轴向振动会降低振荡幅度或产生拍击振动。给出了控制轴向振荡/振动幅度的方法。

更新日期:2020-06-30
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