In this paper, the problem of the acoustic resonant frequency shift of a cylindrical cavity with a coaxial porous sample is discussed on the basis of the resonance acoustic spectroscopy.
基于共振声谱法，研究了同轴孔隙性圆柱扰动体引起圆柱谐振腔共振频率的偏移。
Harmonics of these normal forces will resonate the natural frequency resonant modes of the stator structure so producing acoustic noise.
这些简正力量泛音将共鸣定子结构的自然频率共振方式如此导致音响噪声。
Harmonics of these normal forces will resonate the natural frequency resonant modes of the stator structure so producing acoustic noise.
这些简正力量泛音将共鸣定子结构的自然频率共振方式如此导致音响噪声。
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