normal vibration mode

基本解释

The third chapter introduces the harmonic oscillator model, normal mode vibration types and frequency characteristics of infrared spectra.
第三章介绍了红外光谱的谐振子模型、简正振动类型和频率特征。
The principal vibration of a simple beam with elastic supports was analyzed and the analytical formulation of normal vibration mode was derived.
给出了弹性支承桥梁和车体的振动方程并通过对具有弹性支座简支梁主振动的分析，得出了梁主振型的解析公式。
The parameters reflecting normal stiffness have more obvious effects on extensional vibration mode than those on flexural mode and torsion mode.
结合面法向刚度大小的参数对纵向振动模态的影响比对弯曲、扭振模态的影响显著；