基于小波变换和模态声发射理论，通过模态声发射试验的方法确定了管道中导波传播的频散特性。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
研究了圆柱壳中较高阶周向模态结构振动波的频散特性，得到了相应的频散曲线。
Dispersion results of the structural vibration waves of higher order circumferential modes in cylindrical shells are calculated, and corresponding dispersion curves are obtained.
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