惯容超材料扭振隔振器理论和试验研究

doi:10.12068/j.issn.1005-3026.2023.05.006

摘要/Abstract

摘要： 针对目前超材料结构在低频抑振时质量和体积过大的问题，提出了惯容超材料扭振隔振器.首先设计了惯容超材料隔振器的具体结构，并分析了其相对于传统超材料隔振器的优点.其次分析了中介轮传动机制，在建立惯容超材料隔振器动力学方程的基础上，得出了惯容超材料隔振器能带结构图与超材料隔振系统传输曲线，并进一步探究从动金属盘直径及单胞数对惯容超材料隔振器抑振效果的影响，通过试验对所设计惯容超材料隔振器进行了扭振抑制的效果验证.结果表明，所设计惯容超材料隔振器最大振动衰减可达-60dB，能够有效地抑制转子系统的低频扭转振动，从而满足实际工程需要.

关键词: 转子系统；超材料结构；扭振抑制；惯容技术；隔振器

Abstract: The inertial capacitance metamaterial torsional vibration isolator is proposed to address the problem of excessive mass and volume of the current metamaterial structure in low frequency vibration suppression. Firstly， the specific structure of the inertial capacitance metamaterial vibration isolator is designed and its advantages over the conventional metamaterial vibration isolator are analyzed. Secondly， the intermediate wheel transmission mechanism is analyzed， and on the basis of the kinetic equations of the inertial capacitance metamaterial isolator， the energy band structure of the inertial capacitance metamaterial isolator and the transmission curve of the metamaterial isolation system are derived， and the influence of the diameter of the driven metal disk and the number of single cells on the vibration suppression effect of the inertial capacitance metamaterial isolator is further investigated. The effect of torsional vibration suppression of the designed inertial metamaterial isolator is verified through experiments. The results show that the maximum vibration attenuation of the designed inertial metamaterial vibration isolator can reach -60dB， which can effectively suppress the low frequency torsional vibration of the rotor system and thus meet the practical engineering requirement.

Key words: rotor system; metamaterial structure; torsional vibration suppression; inertial capacity technology; isolator

中图分类号:

TD451

朱清东，陈亚强，吴超，姚红良. 惯容超材料扭振隔振器理论和试验研究[J]. 东北大学学报（自然科学版）, 2023, 44(5): 651-659.

ZHU Qing-dong， CHEN Ya-qiang， WU Chao， YAO Hong-liang. Theoretical and Test Study of Inertial Capacitance Metamaterial Torsional Vibration Isolators[J]. Journal of Northeastern University(Natural Science), 2023, 44(5): 651-659.

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