TORSIONAL OSCILLATION CHARACTERISTICS OF ROTARY SHAFTS BASED ON TORSION AND BENDING COUPLED VIBRATION

The torsional oscillation characteristics on the bending and torsioh coupled vibration of rotary shaft system were investigated using the elasto-dynamic theory and other mathematic methods, such as difference approach, Fourier transform, and wavelet transform. It is concluded that mass eccentricity and other exciting modalities affect the bending and torsion coupled vibration of rotary shafts. Torsional vibration caused by bending vibration features linearity along with the change of amplitude of bending vibration. Meanwhile, energy spectrum concentrates on high frequency area with the wavelet analysis.

弯曲和扭转上的扭力的摆动特征联合了旋转的柄系统的颤动用 elasto 动态的理论和另外的数学方法被调查，例如差别途径， Fourier 变换，和小浪变换。集体怪癖和另外的令人激动的形式影响弯曲，这被结束，扭转联合了旋转的柄的颤动。扭力的颤动由与把颤动弄弯的振幅的变化一起把颤动特征线性弄弯引起了。同时，精力光谱与小浪分析专注于高频率区域。