期刊文献+

支承松动的质量慢变转子系统混沌特性研究 被引量:9

Study on Chaos Behaviors of Rotor Systems with Slow-varying Mass and Pedestal Looseness
下载PDF
导出
摘要 建立了带有支承松动故障的质量慢变转子系统的动力学模型 ,利用数值积分和Poincare映射方法 ,对该转子系统由于支承松动故障而导致的动力学行为进行了数值仿真研究。给出了系统响应随转子转动频率变化的分岔图、最大Lyapunov指数曲线图、典型的Poincare截面图和幅值谱图等 ,以及质量慢变系数对系统响应影响的分岔图。结论表明 :转子的横向均为多周期运动 ,纵向响应几乎均为混沌运动 ;随着转动频率的增加 ,转子的振动幅度出现波动 ,而在 2倍固有频率处达到极小值 ; A dynamic model of the rotor system with slow-varying mass and pedestal looseness was set up. The nonlinear dynamic behaviors were studied, which were caused by joint effects of pedestal looseness and slow-varying mass using numerical integration and Poincare mapping method. The bifurcation diagrams and maximal Lyapunov exponent maps were given about the response changes with the frequency ratio, and the dynamic behaviors influenced by the slow-varying mass coefficient were analyzed. The conclusions indicate that horizontal response of the rotor is P-n motion, and vertical response is almost chaotic motion; with the frequency increasing, vibration range of the rotor has appeared to rise and fall, and achieves one tiny value at 2 times of intrinsic frequency; the increase of mass varying coefficient causes enhancement of the frequency region of Chaotic motion, etc..
机构地区 东北大学
出处 《中国机械工程》 EI CAS CSCD 北大核心 2005年第2期165-168,共4页 China Mechanical Engineering
基金 国家自然科学基金资助项目 ( 5 0 2 75 0 2 4)
关键词 转子 松动 混沌 质量 慢变 rotors looseness chaos mass slow varying
  • 相关文献

参考文献5

二级参考文献12

  • 1夏根福,孙蕙庆.风机不平衡与基础松动故障共存时的振动分析[J].振动与冲击,1995,14(2):44-47. 被引量:8
  • 2张瑞林.机组强烈振动的非线性特征频率振动.机械故障诊断技术国际学术会议(CSMDT'86)论文集[M].沈阳:东北大学出版社,1986..
  • 3Ehrich F. Rotordynamic Response in Nonlinear Anisotropic Mounting Systems. Proceedings of 4th International Conferences on Rotor Dynamics, Chicago, USA, 1994.
  • 4Kim Y B. Quasi--periodic Response and Stability Analysis for a Nonlinear Jeffcott Rotor. Journal of Sound and Vibration, 1996, 190(2): 239-253.
  • 5Ji Z, Zu J W. Method of Multiple Scales for Vibration Analysis of Rotor--shaft Systems with Non--linear Bearing Pedestal Model. Journal of Sound and Vibration, 1998, 218(2): 293-305.
  • 6Cveticanin L. Resonant Vibration of Nonlinear Rotors. Mechanisms and Machine Theory, 1995, 31(5): 581-588.
  • 7Chu Fulei,Int J Eng Sci,1997年,35卷,10/11期,963页
  • 8褚福磊,方泽南,张正松.带有支座松动故障的转子—轴承系统的混沌特性[J].清华大学学报(自然科学版),1998,38(4):60-63. 被引量:27
  • 9李录平,徐煜兵,贺国强,韩守木,黄树红.旋转机械常见故障的实验研究[J].汽轮机技术,1998,40(1):33-38. 被引量:10
  • 10陈安华,刘德顺,朱萍玉.转子系统非线性振动研究进展[J].湘潭矿业学院学报,1999,14(2):59-65. 被引量:8

共引文献53

同被引文献167

引证文献9

二级引证文献54

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部