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论文类型：期刊论文

发表时间：2017-11-10

发表刊物：MODERN PHYSICS LETTERS B

收录刊物：SCIE、Scopus

卷号：31

期号：31

ISSN号：0217-9849

关键字：Local resonance plate; damping ratios; vibro-acoustic behavior; stopbands

摘要：This paper primarily investigates the effect of damping ratios on the acoustic response of a multi-stopband local resonance plate consisting of two-dimensional periodic arrays of tuned mass-spring combinations attached to a thin homogeneous plate. A Floquet Bloch approach is employed to demonstrate the stopbands for an infinite plate. In addition, the acoustic radiation behavior and average sound radiation pressure level of finite plates are computed. A continuous and much wider stopband with good vibro-acoustic behavior can be obtained when care is taken in the design of the damping ratios of local resonance plates.