Flexural Waves in Inhomogeneous Periodic Structures and Localized Vibration Modes

非均匀周期结构中的弯曲波和局部振动模式

• 批准号: EP/E035272/1
• 负责人: Alexander Movchan
• 金额: $ 2.83万
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE035272%2F1
• 关键词: Flexural; Waves; Inhomogeneous; Periodic; Structures

Our project aims to develop methods for and explore applications of the interaction between bending waves and periodic systems of defects (such as voids and inclusions in elastic plates). The emphasis is on flexural phononic band gap systems, where the goal is to create band gaps for flexural modes in plates, and use them to control the propagation of bending waves. The governing equations are involving the biharmonic operator. We will study wave localization due to resonant defects in arrays and in stacked gratings, and address the issue of the design of waveguides and filters for bending waves.

我们的项目旨在开发和探索弯曲波和缺陷系统（例如弹性板中的空隙和夹杂物）之间相互作用的应用的方法。重点是弯曲的语音带隙系统，该系统的目标是为板中的弯曲模式创建带隙，并使用它们来控制弯曲波的传播。理事方程式涉及Biharmonic操作员。我们将研究由于阵列和堆叠光栅中的谐振缺陷而导致的浪潮定位，并解决了弯曲波的波导和滤波器设计的问题。