论文部分内容阅读
通过试验成功地呈现了轴系中油膜振荡过程的一阶固有频率和1/2、1/3次谐波振荡现象及分岔、混沌等非线性特征,进一步探讨了转子升降速产生次谐波油膜振荡的过程与机理。针对1/2、1/3次谐波油膜振荡锁频,双低频及幅频分岔图特性等现象,提出了进一步深入轴承转子系统非线性动力学行为研究的有关问题。
The first natural frequency, 1/2, 1/3 harmonic oscillation phenomenon and the bifurcation, chaos and other non-linear characteristics of the oil film oscillation in the shaft system were successfully demonstrated through experiments. The subharmonic Oil film oscillation process and mechanism. Aiming at the phenomenon of 1 / 2,1 / 3th harmonic oscillating frequency, double low frequency and amplitude-frequency bifurcation diagram, some problems about the further study of nonlinear dynamic behavior of bearing rotor system are put forward.