期刊文献+

多支承转子系统弯曲振动分析方法研究 被引量:4

STUDY ON MODE ANALYSES AND RESPONSE CALCULATION OF BENDING VIBRATION IN MULTI-SUPPORTS ROTOR SYSTEM
下载PDF
导出
摘要 提出一种描述多支承转子系统弯曲振动的数学模型:应用二分法和LU分解法综合计算弯曲自由振动模态,应用Newmark时间差分法和空间五点差分法综合求解弯曲强迫振动动力响应;针对300 MW汽轮机组模型,进行模态分析以及多种激励下的位移响应计算。模态分析、响应计算结果与现场实测数据较为吻合,说明了所建立的动力学模型与采用的计算方法的有效性。 The bending vibration equations are established on the multi-supports rotor model system. For calculating mode of free vibration, the dichotomy and LU law are adopted, while the Newmark law and quincunx difference are applied to dynamical response calculations. In a model of a 300 MW turbine generator, the results of calculation are basically identical with the on-the-spot measurements, as accounted for validity of the equations and the laws.
出处 《机械工程学报》 EI CAS CSCD 北大核心 2004年第11期35-41,共7页 Journal of Mechanical Engineering
基金 天津市自然科学基金资助项目(023605211)
关键词 多支承转子 弯曲振动 模态分析 响应计算 差分法 Multi-supports rotor Bending vibration Mode analyses Response calculation Difference method
  • 相关文献

参考文献10

  • 1Myklestad N O. A new method of calculating natural modes of uncoupled bending vibration of airplane wings and other types of beams. Journal of Mechanical Engineering Science, 1944, 11(4):153~162
  • 2Prohol M A. A general method for calculating critical speeds of flexible rotors. Trans. ASME, Journal of Applied Mechanics, 1945, 12(3):142~148
  • 3Lund J W. Notes on rotor-bearing dynamics. The Technical University of Denmark, 1979
  • 4Sébastien B, Olivier B, Jean F. Influence of axial thrust bearing on the dynamic behavior of an elastic Shaft:coupling between the axial dynamic behavior and the bending vibrations of a flexible shaft. Journal of Vibration and Acoustics, 2001, 123(2):145~149
  • 5Lund J W. The stability of an elastic rotor in journal bearings with flexible, damped supports. Trans., ASME, Series E, 1965, 32(4):911~920
  • 6苏翼林. 材料力学. 天津:天津大学出版社,1999
  • 7John H M, Kurtis D F. Numerical Methods Using MAT- LAB. Third Edition. 北京:电子工业出版社,2001
  • 8凌复华,殷学纲,何冶奇. 常微分方程数值方法及其在力学中的应用. 重庆:重庆大学出版社,1990
  • 9翟瑞彩,谢伟松. 数值分析. 天津:天津大学出版社,2000
  • 10黄纯华. 大型同步发电机运行. 北京:水利电力出版社,1997

同被引文献33

引证文献4

二级引证文献32

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