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关于由丙烯腈-丁二烯-苯乙烯制成的可变横截面周期性结构支撑体的带隙特性研究。

Investigations on the Band-Gap Characteristics of Variable Cross-Section Periodic Structure Support Made of Acrylonitrile-Butadiene-Styrene.

作者信息

Zhang Jinguang, Xia Xu, Wen Xianglong, Zang Meng, Dou Yukuan

机构信息

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China.

Institute of Advanced Material and Manufacturing Technology, Wuhan University of Technology, Wuhan 430070, China.

出版信息

Materials (Basel). 2022 Jun 17;15(12):4308. doi: 10.3390/ma15124308.

DOI:10.3390/ma15124308
PMID:35744367
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9231085/
Abstract

Based on the band gap theory of periodic structure, this article proposes a new variable cross-section periodic structure support made of acrylonitrile-butadiene-styrene. The band gap characteristics of the periodic structure support were studied experimentally. According to the basic theory of band gap calculation, two kinds of supports with the same installation size were designed, and they were manufactured by 3D printer. Then, the displacement-load curve and the vibration characteristic curves of the periodic structure support were obtained through simulation analysis. The band gap range of the two supports was measured by hammer excitation, and the accuracy of the finite element model was verified by comparison with the experiment results. Finally, the response curve of the periodic structure support with variable cross-section every 100 Hz was obtained by excitation of the shaker, which verified the vibration isolation effect of the measured band gap. The results show a band gap in the support of the variable cross-section periodic structure, compared with the support of the non-periodic structure. If the vibration frequency is within the band gap frequency, the vibration will be significantly attenuated.

摘要

基于周期结构的带隙理论，本文提出了一种由丙烯腈-丁二烯-苯乙烯制成的新型变截面周期结构支架。对周期结构支架的带隙特性进行了实验研究。根据带隙计算的基本理论，设计了两种安装尺寸相同的支架，并通过3D打印机制造。然后，通过模拟分析得到了周期结构支架的位移-载荷曲线和振动特性曲线。通过锤击激励测量了两种支架的带隙范围，并与实验结果对比验证了有限元模型的准确性。最后，通过振动台激励得到了每隔100Hz变截面周期结构支架的响应曲线，验证了所测带隙的隔振效果。结果表明，与非周期结构支架相比，变截面周期结构支架存在带隙。如果振动频率在带隙频率范围内，振动将显著衰减。

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