CFM56发动机高压压气机转子平衡工艺分析  

Analysis on the Balance Process of CFM56 Engine High-pressure Compressor Rotor

作　　者：孙贵青 赵哲 孙慧洁 李泽林 SUN Gui-qing;ZHAO Zhe;SUN Hui-jie;LI Ze-lin(AECC Shenyang Engine Research Institute,Shenyang 110015,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015

出　　处：《航空发动机》2020年第6期92-97,共6页Aeroengine

基　　金：航空动力基础研究项目资助。

摘　　要：转子不平衡是航空发动机的主要激振源,直接影响发动机可靠性及部件使用寿命。为降低发动机振动,针对CFM56发动机高压压气机转子,采用SAE ARP4163标准评定方法,深入研究初始不平衡量数值设定和多校正面平衡等技术难点。结果表明:CFM56发动机高压压气机转子初始不平衡量(≤3048 g·mm)、剩余不平衡量(G3.6平衡等级)精度设计合理,基于初始不平衡量控制的多面平衡工艺方法有效;利用转子定位基准误差识别重要部位和计算分析配重块在各校正面上的影响系数等分析工作,可高效实现平衡结果最优化。Rotor unbalance is the main excitation source of aeroengine,which directly affects the reliability of engine and the service life of components.In order to reduce engine vibration,the SAE ARP4163 standard evaluation method was adopted for CFM56 engine highpressure compressor rotor,and the technical difficulties such as setting the initial unbalanced quantity and balancing the multi-correction planes were deeply studied.The results show that the precision design of the initial unbalance quantity(≤3048 g·mm)and the residual unbalance quantity(G3.6 balance grade)of the CFM56 engine high-pressure compressor rotor is reasonable,and the multi-planes balance process method is effective based on the initial unbalance quantity control.The rotor positioning reference error is applied to identify important parts and the influence coefficient of the counterweight on each correction surface is calculated and analyzed,which can achieve the optimal balance results efficiently.

关 键 词：转子不平衡 振动 高压压气机 多校正面 CFM56发动机 

分 类 号：V263.2[航空宇航科学与技术—航空宇航制造工程]