摘要
分析了裂纹轴转子系统在考虑涡动时的非线性动力学行为 ,并与忽略涡动时的裂纹轴进行了对比 ,发现二者在周期分岔特性、振幅特性、轴心轨迹和庞卡莱图等方面均存在明显差异· 从而可以看出在考虑非线性涡动时 ,裂纹轴会出现复杂的动力学行为· 所得结论对于早期发现和诊断裂纹故障有一定参考价值·
Nonlinear dynamics of a cracked rotor with whirling were analyzed and were compared to a rotor without whirling. Distinct differences have been found in bifurcation, amplitude, orbit and Poincare map when carrying on this comparison. Complicated dynamics may be found when a cracked rotor has its whirling speed. The results revealed may be useful in crack_early_detection and diagnosis.
出处
《应用数学和力学》
EI
CSCD
北大核心
2002年第6期643-652,共10页
Applied Mathematics and Mechanics
基金
国家"九五"攀登计划预选项目 (PD95 2 190 8)
关键词
非线性
涡动
诊断
nonlinear
whirling
diagnosis
