jlusjq 发表于 2008-7-15 09:08

waveguide-FEM

这个“waveguide-FEM”是什么理论啊，可用来描述结构振动，该看什么参考书？
那位大侠了解，指点一下，谢谢了！

zhuofeng 发表于 2008-7-22 08:53

波导？有限元？
没听说过的一种理论

16443 发表于 2008-7-23 09:01

A finite element method (FEM), the waveguide-FEM, is used to calculate wave propagation characteristics for built-up thin-walled structures. Such characteristics are determined from a dispersion relation in the form of an eigenvalue problem established from the FE formulation. In particular, vital characteristics such as the modal density, the group velocity and the waveform are evaluated.
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