摘要
本文以作者提出的关于大自由度的转子-轴承-基础系统的非线性动力学计算方法,详细地考察了转子轴承系统非线性的稳定性问题.其中主要包括:不平衡质量大小和分布对转子轴承系统稳定性的影响;某些转子轴承系统,当其转速高于线性失稳转速时,转子轴心可涡动于一个小的轨迹而不发散的现象之原因的探索;多跨转子轴承系统在不同类别大激励下的动力性态研究等.
Non-linear stability problems of rotor-bearing systems are studied in detail in this paper,using the calculation method of non-linear dynamics of rotor-bearing-fundation system with high degree of freedom proposed by the authors.The problems treated consist of:the effects of unbalance magnitude and distribution on the stability of rotor system;investigation of the cause of non-divergence of the rotor orbit for certain rotors running at a speed higher than the linear stability threshold;study of the dynamic behavior of multi-span rotor systems under different kinds of large excitations.Correspondence between the simulated and the experimental results are satisfctory.
出处
《上海大学学报(自然科学版)》
CAS
CSCD
1996年第1期50-59,共10页
Journal of Shanghai University:Natural Science Edition
基金
国家自然科学基金
上海市高教局基金