为了研究流固耦合声子晶体的特性,本文应用有限元方法进行数值模拟并通过实验进行了验证.以二维钢柱/水正方晶格声子晶体为研究对象,利用ABAQUS有限元软件计算得到了完好周期和线缺陷情况下的传输谱和声压分布.同时利用脉冲响应技术进行实验测量,得到了以上两种情况下的带隙范围.结果表明,两种方法结果吻合得很好,说明有限元方法在计算流固耦合声子晶体问题上的优越性.
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