THE ILL-CONDITIONED EQUATION OCCURRED IN FLEXIBLE ROTOR BALANCING EQUATION RESULTED FROM USING THE INFLUENCE COEFFICIENT METHOD

KOU Shengli

doi:10.19666/j.rlfd.2005.12.005

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THE ILL-CONDITIONED EQUATION OCCURRED IN FLEXIBLE ROTOR BALANCING EQUATION RESULTED FROM USING THE INFLUENCE COEFFICIENT METHOD

更新时间：2025-09-28

- THE ILL-CONDITIONED EQUATION OCCURRED IN FLEXIBLE ROTOR BALANCING EQUATION RESULTED FROM USING THE INFLUENCE COEFFICIENT METHOD
- Thermal Power Generation Issue 12, Pages: 13-16(2005)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2005.12.005
  CLC： TM311
- Published：2005
- 稿件说明：
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KOU Shengli. THE ILL-CONDITIONED EQUATION OCCURRED IN FLEXIBLE ROTOR BALANCING EQUATION RESULTED FROM USING THE INFLUENCE COEFFICIENT METHOD[J]. Thermal power generation, 2005, (12): 13-16.
DOI：

KOU Shengli. THE ILL-CONDITIONED EQUATION OCCURRED IN FLEXIBLE ROTOR BALANCING EQUATION RESULTED FROM USING THE INFLUENCE COEFFICIENT METHOD[J]. Thermal power generation, 2005, (12): 13-16. DOI： 10.19666/j.rlfd.2005.12.005.

摘要

70%左右的机组振动是由不平衡引起的。汽轮发电机组的转子是柔性转子

影响系数法是柔性转子的一种平衡计算方法

但是这种方法对测量中随机误差敏感

容易导致错误的计算结果。许多文献指出转子平衡中采用影响系数法可能会出现病态方程

因此应用柔性转子振动的理论对其进行了证明。

Abstract

About 70 percent of vibration problems on steam turbinegenerator sets are resulting from the rotor of said sets being a flexible one

and the influence coefficient method being a balancing method for the said flexible rotor. But this method is highly sensitive to random measuring error which may lead to erroneous calculation result. It has been indicated by many literatures that the said method may result in illconditioned equation. According to the vibration theory of flexible rotor

progress made in this paper lies in the following: When using the influence coefficient method for balancing the flexible rotor

the balancing equation inevitably to be an illconditioned equation.

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