Dynamic Balancing Method for Airfoil

doi:10.7652/xjtuxb201811003

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Dynamic Balancing Method for Airfoil

更新时间：2025-07-09

- Dynamic Balancing Method for Airfoil
- Vol. 52, Issue 11, Pages: 15-21(2018)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201811003
  CLC： TH17
- Online First：10 November 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
Dynamic Balancing Method for Airfoil[J]. 2018, 52(11): 15-21.
DOI：

Dynamic Balancing Method for Airfoil[J]. 2018, 52(11): 15-21. DOI： 10.7652/xjtuxb201811003.

摘要

为了更精准地控制翼板动平衡时平衡补偿质量

从而提高平衡精度

提出了一种新的利用翼板迎角变化产生不同升力和离心力来实现不平衡力补偿的动平衡方法。对翼板工作时所产生的升力和离心力进行理论分析

建立了翼板迎角与补偿质量间的数学模型。通过实验测试翼板迎角变化所产生的不平衡量

得到翼板迎角与所能提供的补偿质量间的数学关系。在8个不同的相位处添加不同试重作为失衡量

根据所得翼板迎角与补偿质量的数学关系

调整相应翼板的迎角进行失衡量补偿

完成转子动平衡。实验结果表明

基于提出方法设计的动平衡装置可平衡主轴任意位置的不平衡量

平衡能力可达1 617.6 g·mm

在实验转速为560 r/min时

可将不平衡质量降低94.21%。提出的翼板动平衡方法无需添加或去除质量便可完成动平衡

且提供的平衡量可精确控制

具有一定的实用价值和应用前景。

Abstract

To control the compensation mass more accurately and improve the balancing precision

a new dynamic balancing method using lift and centrifugal force produced by the airfoil angle of attack to compensate the unbalance is presented. By analyzing the lift and centrifugal force theoretically

the mathematical model about attack angle and compensation mass is established. The corresponding experiments are conducted to obtain the relationship between the airfoil attack angle and the compensation mass. Test weights are added in eight different phases as the unbalance mass

the attack angle is adjusted according to the mathematical relationship obtained in advance to realize dynamic balancing. The experiments show that the dynamic balancing device designed by the proposed method can accurately compensate the unbalance amount to 1 617.6 g·mm at any position of the main shaft. Vibration caused by unbalance can be reduced by 94.21% at 560 r/min in the experiments. Rotor unbalance can be controlled accurately without adding or removing extra compensation mass.

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references

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