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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Optimization of the local resonant sonic material by tuning the shape of the resonator
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Optimization of the local resonant sonic material by tuning the shape of the resonator

机译：通过调整谐振器的形状来优化局部谐振声材料

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摘要

The resonator shape dependence of the first resonance frequency (RF) and the normalized gap width of a layer local resonant sonic crystal was studied. The unit block of the local resonant sonic material, the three component resonator, extended from spherical symmetry to azimuthal symmetry. Both the least square collocation method and the Lagrange multiplier method were introduced to study the more complicated system. Based on numerical calculation, it was found that both the first RF and the normalized gap width can be optimized by adjusting the shape of the core or cavity of the resonator under certain conditions. The approach can be extended to more general cases.
机译：研究了第一共振频率（RF）的共振器形状依赖性和层局部共振声晶体的归一化间隙宽度。局部共振声波材料的单位块，即三分量共振器，从球对称扩展到方位对称。引入最小二乘配置法和拉格朗日乘数法来研究更复杂的系统。基于数值计算，发现可以通过在特定条件下调节谐振器的芯或腔的形状来优化第一RF和归一化间隙宽度。该方法可以扩展到更一般的情况。

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