Modal Waves Solved in Complex Wave Number
Modal Waves Solved in Complex Wave Number
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以复波数求解模态波
DOI：
10.1063/1.1916673
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发表时间：
2005
影响因子：
1.7
通讯作者：
M. Ourak
中科院分区：
文献类型：
--
作者：
W. Xu;F. Jenot;M. Ourak
提出了一种从弹性结构特征方程中求解超声模态波的复域数值算法。该方法适用于任何显式或隐式给出的数值函数。模态波的复根轨迹通过改变其他参数来构造。分析了可能导致寻根和跟随失败的不同情况，并提出了相应的解决方案。给出了三层胶接接头和复合材料板的计算实例。
A numerical algorithm is proposed for the resolution in complex domain of the ultrasonic modal waves from the characteristic equation of elastic structures. The method is applicable to any numerically available function given explicitly or implicitly. The complex root loci of the modal waves are constructed by varying other parameters. Different situations which can cause the roots searching and following failure are analysed and the corresponding solutions are proposed. The computation examples are given for a three layered adhesive joint and a composite plate.