Abstract

This article proposes a new periodic structure. The Adomian decomposition method and ANSYS software are employed to study the influence of geometrical parameters on the first three vibration band gaps and natural frequencies, respectively. Results show that all the bands can get close to each other by changing geometrical parameters. Furthermore, a set of natural frequencies are within the band gaps for some values of geometrical parameters. Forced vibration analysis shows that both wave propagation and resonance do not occur at some of these frequencies. These unique features demonstrate that this structure can be used to design efficient vibration absorbers.

中文翻译：

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一种具有特殊隔振特性的新型周期性梁状结构

摘要

本文提出了一种新的周期结构。采用Adomian分解法和ANSYS软件分别研究了几何参数对前三个振动带隙和固有频率的影响。结果表明，通过改变几何参数，所有波段都可以相互靠近。此外，一组固有频率在几何参数的某些值的带隙内。受迫振动分析表明，在其中一些频率下，波传播和共振都不会发生。这些独特的特点表明，这种结构可用于设计高效的减振器。