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工程力学  2013 

粘弹正交各向异性空心圆柱体周向SH波

DOI: 10.6052/j.issn.1000-4750.2011.11.0736

Keywords: 周向SH波,正交各向异性空心圆柱体,粘弹性材料,频散,衰减

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Abstract:

基于Kelvin-Voight模型,推导了粘弹正交各向异性空心圆柱体周向SH波控制方程,得出了SH波特性受两个弹性常数与粘性系数的影响。通过第一类和第二类Bessel函数,求出频散方程。计算了四种不同径厚比下的相速度频散曲线和衰减曲线,分析了径厚比的变化对频散和衰减曲线的影响。为了与正交各向异性相比较,计算了粘弹各向同性空心圆柱体中周向SH波,并讨论了两个弹性常数和粘性系数对频散曲线和衰减曲线的影响。

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