三韧带手性结构的振动带隙特性

近年来，手性结构因其独特的几何形状和结构性能，而备受关注。Bloch定理被广泛应用于周期结构的研究之中，使用该方法对三韧带手性胞元的能带特性进行分析，并通过对手性结构模型的数值仿真，验证该方法的高效和正确性。结果显示，当振动频率处于结构的带隙范围内时，手性结构具有良好的振动衰减特性。由此进一步对手性胞元的几何形状进行参数研究，分析其对带隙的分布的影响，从而得到结论，适当地选择几何参数可以调节带隙的出现频率。

Study on the Vibration Band-gap Characteristics of Trigonal Chiral Structures

In recent years, attention is devoted to the chiral structures due to its unique topology and property. The Bloch theorem is widely used in the analysis of the periodic structure. In this work, the bandgap property of trigonal chiral structure is studied. The finite element model is built to demonstrate that vibration transmission displays significant attenuation for the frequency located in the band gap, which exposes the efficiency and validity of the method. A parametric study is presented to investgate the dependence of unit cell geometry upon the distribution of the band structure, and the result shows the design flexibilty of the chiral lattice.