COMPUTATION OF PROPAGATIVE WAVES IN FREE RAIL USING A FINITE-ELEMENT TECHNIQUE
COMPUTATION OF PROPAGATIVE WAVES IN FREE RAIL USING A FINITE-ELEMENT TECHNIQUE
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DOI：
10.1006/jsvi.1995.0398
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发表时间：
1995-08-24
影响因子：
4.7
通讯作者：
GAVRIC, L
中科院分区：
文献类型：
--
作者：
GAVRIC, L
提出了一种对固体波导横截面的波数和相关模式进行数值计算的方法。该方法基于有限元技术，非常适合计算任意横截面的直波导中的传播波和倏逝波。该解决方案通过因式分解获得，波导的横截面通过数值离散化建模。利用三角形和四边形“截面有限元”计算自由轨道中传播波的频散曲线。评估和讨论了截面模式随频率增加的演变。 (C) 1995 学术出版社有限公司
A method is presented for the numerical computation of the wavenumbers and associated modes of the cross-section of solid waveguides. The method, based on the finite element technique, is well suited to the computation of both the propagative and the evanescent waves in a straight waveguide with an arbitrary cross-section. The solution is obtained by factorization, with the cross-section of the waveguide being modelled by numerical discretization. The dispersion curves of propagative waves in a free rail are computed by using triangular and quadrilateral ''finite elements of the cross-section''. The evolution of cross-section modes as the frequency increases is evaluated and discussed. (C) 1995 Academic Press Limited