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arXiv 1504.00487cond-mat.mtrl-sciphysics.class-ph
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用惯性谐振器操纵柏拉图晶体中的面内剪切波

Steering in-plane shear waves with inertial resonators in platonic crystals

Younes Achaoui, André Diatta, Sébastien Guenneau

摘要:

数值模拟揭示了剪切弹性波在惯性谐振器结构板中传播的控制。结构元素是由一个沉重的核心连接到主要的独立板通过微小的韧带。结果表明,这样的配置具有完整的带隙在低频制度。作为一个副产品,我们进一步描述了一个单一的散射体通过模式分析,色散和传输损耗的非对称扭转振动。这可能为弹性板中的聚焦和自准直等新功能铺平道路。

英文摘要:

Numerical simulations shed light on control of shear elastic wave propagation in plates structured with inertial resonators. The structural element is composed of a heavy core connected to the main freestanding plate through tiny ligaments. It is shown that such a configuration exhibits a complete band gap in the low frequency regime. As a byproduct, we further describe the asymmetric twisting vibration of a single scatterer via modal analysis, dispersion and transmission loss. This might pave the way to new functionalities such as focusing and self-collimation in elastic plates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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