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所属单位：航空学院
发表刊物：SHOCK AND VIBRATION
关键字：RECONSTRUCTION
摘要：This paper presents a modified boundary element method (BEM) to solve the scattering problem of Love surface wave from a two-dimensional cavity defect. Because of the truncation of BEM models at a far distance from the cavity, spurious reflected waves are generated. In order to eliminate the unwanted reflections, the guided Love-wave displacement patterns are assumed on the far-field infinite boundaries previously omitted by model truncation, and they are incorporated into the BEM equation set as modified items. The numerical results are verified by theoretical solutions of far-field Green's functions. Additional parametric studies are performed to find out the influence of truncation distance and defects' geometric characters on the accuracy of scattered wave solutions.
ISSN号：1070-9622
是否译文：否
发表时间：2018-01-01
合写作者：杨晨,钱征华
通讯作者：王彬,钱征华