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单面弹性固体层负载的板中SH波的时频分析 被引量：1

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摘要 利用时频分析方法分析一侧附有弹性固体负载层的各向同性板中水平剪切波(SH波)的传播特性．为验证该方法的有效性,采用基于短时傅立叶变换的时频重排方法对有限元仿真出来的SH波信号进行了分析．提取出来的频散数据与频散方程分析的结果相符．结果表明,负载层厚度的增加会引起SH0模式群速度和高阶模式截止频率的降低,从而可应用于负载层特性的传感．文中也讨论了该方法的局限性．
作者 宋富先 陆毅 章东 朱哲民
机构地区 近代声学国家重点实验室南京大学声学所
出处 《科学通报》 EI CAS CSCD 北大核心 2006年第11期1249-1253,共5页 Chinese Science Bulletin
基金 教育部博士点基金(批准号:2002028402)资助项目.
关键词 水平剪切波传播 时频分析 频散曲线 声传感
分类号 O422 [理学—声学]
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参考文献10

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同被引文献12

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科学通报
2006年 第11期

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