STUDY ON DYNAMIC BALANCE OF AEROENGINE FLEXIBLE ROTOR BASED ON TRANSFER FUNCTION

ZHANG Ying; WANG KunPeng; MA Liang

doi:10.16579/j.issn.1001.9669.2021.06.008

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STUDY ON DYNAMIC BALANCE OF AEROENGINE FLEXIBLE ROTOR BASED ON TRANSFER FUNCTION

更新时间：2022-09-22

- STUDY ON DYNAMIC BALANCE OF AEROENGINE FLEXIBLE ROTOR BASED ON TRANSFER FUNCTION
- Journal of Mechanical Strength Vol. 43, Issue 6, Pages: 1321-1327(2021)
- 作者机构：
  
  1. 中国民航大学航空工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.06.008
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ZHANG Ying, WANG KunPeng, MA Liang. STUDY ON DYNAMIC BALANCE OF AEROENGINE FLEXIBLE ROTOR BASED ON TRANSFER FUNCTION. [J]. 43(6):1321-1327(2021)
DOI：

ZHANG Ying, WANG KunPeng, MA Liang. STUDY ON DYNAMIC BALANCE OF AEROENGINE FLEXIBLE ROTOR BASED ON TRANSFER FUNCTION. [J]. 43(6):1321-1327(2021) DOI： 10.16579/j.issn.1001.9669.2021.06.008.

摘要

将影响系数法和传递函数法应用于航空发动机柔性转子动平衡。以航空发动机柔性转子实验台为研究对象进行实验研究,在不开机情况下通过锤击法获得柔性转子的静态传递函数。选取典型高速柔性转子CFM56-7B发动机低压转子作为研究对象进行数值仿真,通过Ansys谐波响应分析获得转子系统的传递函数。经实验和仿真验证,传递函数法较影响系数法有良好的平衡效果,有效地降低了不平衡转子的振动,避免了影响系数法多次开机的缺点,在航空发动机维护工作中具有良好的应用前景。

Abstract

The influence coefficient method and transfer function method are applied to the dynamic balance of aero-engine flexible rotor. The static transfer function of the flexible rotor is obtained by hammering on the experimental bench of the aero-engine flexible rotor. The low-pressure rotor of CFM56-7 B engine with typical high-speed flexible rotor was selected as the research object for numerical simulation, and the transfer function of the rotor system was obtained through ANSYS harmonic response analysis. The experiment and simulation results show that the transfer function method has better balance effect than the influence coefficient method, which can effectively reduce the vibration of unbalanced rotor and avoid the disadvantage of the influence coefficient method in starting the rotor several times. It has a good application prospect in the maintenance of aero-engine.

关键词

柔性转子转子实验台传递函数谐波响应分析

Keywords

Flexible rotorRotor benchTransfer functionHarmonic response analysis

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