• CN:11-2187/TH
  • ISSN:0577-6686

›› 1983, Vol. 19 ›› Issue (2): 9-21.

• 论文 • 上一篇    下一篇

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计入支点弹性和阻尼时可倾瓦轴承支撑的转子系统的动力稳定性

张直明   

  • 发布日期:1983-03-01

The Dynamic Stability of a Rotor System Supported on Tilting-Pad Bearings with Consideration of Pivot Stiffness and Damping

Zhang Zhiming   

  • Published:1983-03-01

摘要: 本文研究了瓦质惯矩、瓦质量、质偏心、支点在下沉方向和偏转方向上的刚度和阻尼对转子系统阻尼的影响。指出了下沉方向上适当的刚度和阻尼能极有效地提高系统阻尼。文中并以附录形式介绍了一种将特征行列式展开为特征多项式的数值方法。

关键词: 近净成形, 砂型, 数字化柔性挤压, 无模铸造, 优化算法

Abstract: The influences of pad moment of inertia, pad mass, mass eccentricity, stiffness and damping of pivot in downward direction and tilting direction on the damping factor of the rotor system are studied in this paper, It is pointed out that the system damping can be very effectively enhanced by giving pad pivots suitable stiffnsse and damping in the downward direction. A numerical method used to develop the eigendeterminant in to eigenpolynomial is described in an appendix.

Key words: Digital flexible extrusion technology, Near-net forming, Optimization algorithm, Sand mold, Non-mold casting technology