热力发电2025，Vol.54Issue(12)：39-45,7.DOI:10.19666/j.rlfd.202503063
重型燃气轮机压气机动叶片的模态分析和测试验证
Modal analysis and test verification of moving blades of the compressor in a heavy-duty gas turbine
摘要
Abstract
The first stage blades of a heavy-duty gas turbine compressor are newly independently developed and designed,which use the advanced 3D modeling technology to design high-performance blade profiles.It is necessary to master the blades'vibration characteristics to verify the reliability of the blades.The finite element method was used to analyze the vibration frequency of the blades under dynamic frequency testing conditions and actual operating conditions.Meanwhile,the radio telemetry technology has been introduced to verify the dynamic frequency of the blade.The dispersion effects caused by blade material and processing tolerances,as well as assembly tolerances were also considered.The results indicate that the theoretical analysis of blade vibration is consistent with the test characteristics,with a deviation of no more than 1.2%.The theoretical frequency avoidance margin of compressor blades under operating conditions can meet the deviation between numerical analysis methods and experimental testing methods,as well as the frequency influence caused by material,processing,and assembly factors,and still have a large safety margin.The research results provide guidance for the development of gas turbine compressor blades,as well as the upgrading,improvement,and vibration monitoring of blades throughout their entire lifecycle.关键词
重型燃气轮机/压气机叶片/振动分析/动频测试/分散度Key words
heavy-duty gas turbine/compressor blades/vibration analysis/dynamic frequency test/dispersion引用本文复制引用
ZHOU Lili,ZHANG Shanzi,ZHAO Lianhui..重型燃气轮机压气机动叶片的模态分析和测试验证[J].热力发电,2025,54(12):39-45,7.基金项目
上海市国资委企业创新发展和能级提升项目(2024003)Enterprise Innovation Development and Energy Level Enhancement Project of Shanghai State Owned Assets Supervision and Administration Commission(2024003) （2024003）
