透平机械迷宫密封气流激振的研究
沈庆根,谢春良,潘永密,汪希萱
摘要(Abstract)：
<正> 一、前言由于高速旋转机械的转子轴承系统在工作过程中是个复杂的转子动力学问题,引起机器振动的原因往往不是单一因素,其中有机械力的激励,也有流体动力激励。后者,在轴承油膜的流体动力学和稳定性问题上人们已作了较多的研究,具有较为深厚的理论基础,但在气体动力激振问题上至今仍有许多捉摸不定的因
关键词(KeyWords)：
基金项目(Foundation):
作者(Author):
沈庆根,谢春良,潘永密,汪希萱
参考文献(References)：
- [1] J.S. Alford: "Protecting Turbomach from Self-Excited Rotor Whirl", 《Trans ASME. J. Engng Power》, Oct 1965, P333-344
- [2] C. Rosenberg: "Investigating Aerodynamics Transverse Force in Labyrinth Seals in Cases Involving Rotor Eccentricity", C. E. Trans. 083． Translated from Energomashinostrojenie, Vol. 8． 1974 pp15-17
- [3] J. H. Spurk, R. Keiper: "Self-Excited Vibration in Turbomachines Resulting from Flow through Labyrinth Glands", C. E. Trans. 6785． Trans from Ingenieur Archly, Vol 43 (1974) , P 127-135
- [4] A. G. Kastynk: "A Theoretical Analysis of the Aerodynamic Forces in the Labyrinth Glands of Turbomachincs", 《Thermal Enging》, Vol 19(11) 1972． P 39-44
- [5] T. Iwatrubo: "Evaluation of the Instability Forces of Labyrinth Seals in Turbine or Compressors workshop on Rotordynamic Instability problems in High-performace Turbomachinery", (Texas A&M Univ, May 1980 NASA Conference Publication, 2133 P139-167
- [6] M. Kurohashi, Y. Inoue, T. Abe & T. Fujikawa: "Spring and Damping Coefficients of the Labyrinth Seals", I. Mech. E. Conference on Vibrations in Rotating Machinery, Sep 1980 P 215-222
- [7] T. Kameoka: "A Theoretical Approach to Labyrinth Seal Forces-Lateral Forces of the Labyrinth Slal on A whirling Rotor", Proe of the International Conference on Rotordynamics Sep 14-17, 1985 P597-602
- [8] J. W. Lund: "Current Topics in Rotordynamics Research", 《The Shock & Vibration Digest》, Vol 14 № 6 June 1982． P3-7
- [9] S. Morii, K. Nishimoto: "On the subsynchronous Whirl in the Centrifugal Compressor", Proc of the International Conference on vib poblems in Enging Xian China June 19-22 1986