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Band Structures of 2D Sonic Crystals with Honeycomb Lattices Based Finite Element Method

【摘要】:正Sonic crystals are composite materials made of periodic distributions of inclusions embedded in a matrix.Due to the periodicity,these materials may exhibit absolute acoustic band gaps under certain conditions.This paper presents a class of two-dimensional steel/air Sonic crystal(PC) with honeycomb lattices.The frequency band gap

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