转子滑动轴承系统中油膜谐波振荡过程的试验研究  

Experimental Research on the Harmonic Oil Whip in Sliding Bearing-rotor System

作　　者：杨金福[1] 杨昆[2] 付忠广[2] 杨晟博[3] 于达仁[4] 崔颖[4] 张占一[5] 

机构地区：[1]中国科学院工程热物理研究所,北京100080 [2]华北电力大学,北京102206 [3]中国科技大学,安徽合肥230027 [4]哈尔滨工业大学,黑龙江哈尔滨150001 [5]东北大学,辽宁沈阳110004

出　　处：《燃气涡轮试验与研究》2007年第3期42-47,共6页Gas Turbine Experiment and Research

摘　　要：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。In this paper, bearing-rotor test presented first-order natural frequency, 1/2 and 1/3 harmonic oil whip as well as some nonlinearity such as bifurcation and chaos in oil whip. Moreover, the process and mechanism of sub-harmonic oil whip in rotor speed rising and drop was studied. According to the frequency locking of 1/2 and 1/3 harmonic oil whip, double low frequencies and amplitude-frequency bifurcation plots, further questions on bearing-rotor system nonlinear dynamics were presented.

关 键 词：转子滑动轴承系统 油膜谐波振荡 试验研究 

分 类 号：V231.96[航空宇航科学与技术—航空宇航推进理论与工程]