Abstract In order to realize the engineering application of the phononic crystal structure, a phononic crystal plate structure based on particle damping was proposed in this paper. The theoretical analysis and experimental prediction show that the structure has excellent medium and low frequencies damping characteristics, extremely wide-bandgap and low-frequency domain vibration damping characteristics. The matched curves of the data results show that the equivalent damping particle continuum including the equivalent elastic modulus and dynamic Rayleigh damping coefficient ratio, is a nonlinear function of the vibration frequency.

中文翻译：

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粒子阻尼声子晶体带隙特性研究

摘要 为了实现声子晶体结构的工程应用，提出了一种基于粒子阻尼的声子晶体板结构。理论分析和实验预测表明，该结构具有优良的中低频阻尼特性、极宽禁带和低频域减振特性。数据结果的匹配曲线表明，包括等效弹性模量和动态瑞利阻尼系数比的等效阻尼粒子连续体是振动频率的非线性函数。