The coupled boundary integral equations and their reduced forms are deduced for hybrid mode problems, and these equations are discreted into a system of linear algebraic equations by moment method.
导出了关于混合模的耦合边界积分方程组及其退化形式，并用矩量法将之离散为齐次代数方程组，从而得波导的混合模传输常数；
Considering the disturbance of the plasma electrons at the beam-ion channel boundary, the eigen-equation of TM mode has been derived.
考虑束-离子通道边界上等离子体电子可能发生的扰动，导出了TM模本征方程的理论式。
This research subject is done for engineering application, mainly about boundary condition analysis of mode calculation and analysis of vortex-excited response for barrel-shaped mast.
本文为实际工程应用课题，重点在于研究桅杆振动固有频率的边界条件分析和在风激励下的涡激振动响应的计算研究。
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