Vibration measurement on compressor rotor blades of aero-engine based on tip-timing
-
摘要: 基于叶尖定时的转子叶片非接触振动测试系统的基本原理和数据分析方法,将非接触振动测量技术成功应用在某型涡扇发动机高压压气机一级转子叶片排故(改型)中,获取叶片共振时的振动频率和幅值,并通过有限元分析方法得到叶尖位移与关键点的位移-应力换算系数。依据反算的关键点动应力可实现(改型)前后转子叶片的高周疲劳寿命预测。某型涡扇发动机高压压气机一级转子叶片非接触振动测试结果显示:由于加工工艺原因导致原型叶片叶型厚度变大,引起叶片固有频率升高,转子叶片在发动机工作转速范围内发生3阶激励激起的一弯振动,导致叶片发生故障。改进加工工艺后,非接触振动测试系统结果显示叶片振动状态较好。Abstract: The theory and data processing method of the non-contact vibration testing system based on blade tip timing were introduced. The system was successfully applied in the blade vibration measurement on the first stage of rotor blades of a turbo-fan engine high pressure compressor, and the blade tip amplitudes and frequencies of the whole blades at resonance were obtained. The displacement-stress conversion ratio from blade tip magnitude to the critical points stress was calculated by the finite element analysis. The vibration character of the whole blades was obtained through the non-contact vibration testing system of the turbo-fan engine. As the thickness of prototypical blades was enlarged by the processing technology, the blades were resonated in the working speed caused by the engine order of 3, which led to the failure of the blades. The vibration character of remodelled blades is very well after promotion of processing technology.
-
Key words:
- tip-timing /
- vibration testing /
- frequency /
- amplitude /
- compressor rotor blade
-
[1] OSTACHOWIEZ W M,KRAWEZUK M.Analysis of the effect of cracks on the natural frequencies of a cantilever beam[J].Journal of Sound and Vibration,1991,150(2):191-201. [2] WAUER J.Vibration of cracked rotating blades[R].Des Bains,Venice:International Conference on Rotating Machine Dynamics Hotel Machine Vibration,1992. [3] 贾旭,胡绪腾,宋迎东.虑及高循环疲劳的裂纹型外物损伤叶片的可用极限[J].航空动力学报,2019,34(2):292-304.JIA Xu,HU Xuteng,SONG Yingdong.Serviceable limits of a crack type foreign object damaged blade considering high cycle fatige[J].Journal of Aerospace Power,2019,34(2):292-304.(in Chinese) [4] 彭建,刘兵.压气机转子叶片动频动应力测试技术和应用研究[J].燃气涡轮试验与研究,2003,16(1):10-13.PENG Jian,LIU Bing.Application research on vibration frequency and stress instrumentation of compressor rotor blades[J].Gas Turbine Experiment and Research,2003,16(1):10-13.(in Chinese) [5] 王奉明,朱俊强,徐纲.基于整机试车的涡轮叶片高低循环复合疲劳试验技术[J].航空动力学报,2018,33(10):2343-2350.WANG Fengming,ZHU Junqiang,XU Gang.Test method for the combined high and low cycle fatigues of turbine blade based on the whole engine operation[J].Journal of Aerospace Power,2018,33(10):2343-2350.(in Chinese) [6] 方志强.涡轮机叶片振动非接触检测原理及应用技术研究[D].天津:天津大学,2007.FANG Zhiqiang.The research of non-contact measurement technique of rotating blade vibration[D].Tianjin,Tianjin University,2007.(in Chinese) [7] ZIELINSKI M,ZILLER G.Noncontact crack detection on compressor rotor blades to prevent further damage after HCF-failure[R].Granada,Spain:Symposium,Evaluation,Control and Prevention of High Cycle Ftigue in Gas Turbine Engines for Land,Sea and Air Vehicles,2005. [8] GURU S S,SHYLAJA S,KUMAR S,et al.Pre-emptive rotor blade damage identification by blade tip timing method[J].Journal of Engineering for Gas Turbines and Power,2013,136(7):072503.1-072503.4. [9] 屈维,王维民,陈立芳.裂纹参数对汽轮机叶片振动特性影响研究[J].北京化工大学学报(自然科学版),2016,43(1):78-85.QU Wei,WANG Weimin,CHEN Limin.The influence of crack parameters on the vibration characteristics of steam turbine blades[J].Journal of Beijing University of Chemical Technology (Natural Science),2016,43(1):78-85.(in Chinese) [10] CHEN Z,YANG Y,XIE Y,et al.Non-contact crack detection of high-speed blades based on principal component analysis and Euclidian angles using optical-fiber sensors[J].Sensors and Actuators:A Physical,2013,201(1):66-72. [11] 萨勃洛斯基И E.涡轮机叶片振动的非接触测量[M].吴士祥,郑叔琛,译.北京:国防工业出版社,1986:5-29. [12] 钟志才,滕光蓉,陈香,等.风扇转子叶片的非接触振动测量[J].燃气涡轮试验与研究,2011,24(4):44-47.ZHONG Zhicai,TENG Guangrong,CHEN Xiang,et al.Non-contact vibration measuring system used for fan rotor blades[J].Gas Turbine Experiment and Research,2011,24(4):44-47.(in Chinese) [13] 钟志才,范志强,李光辉,等.叶尖定时振动测量系统及其在某模拟试验件上的应用[J].燃气涡轮试验与研究,2008,21(4):42-45.ZHONG Zhicai,FAN Zhiqiang,LI Guanghui et al,Blade tip-timing vibration system and application to simulation rotary sample[J].Gas Turbine Experiment and Research,2008,21(4):42-45.(in Chinese) [14] 欧阳涛.基于叶尖定时的旋转叶片振动检测及参数辨识技术[D].天津:天津大学,2011.OUYANG Tao.Rotating blade vibration detection and parameters identification technique using blade tip-timing[D].Tianjin:Tianjin University,2011.(in Chinese) [15] 张玉贵.烟气轮机叶片振动的非接触式在线监测关键技术研究[D].天津:天津大学,2008.ZHANG Yugui.Key technology research on non-contact online monitoring for fume turbine blade vibration[D].Tianjin:Tianjin University,2008.(in Chinese) [16] 冯军楠,段发阶,叶德超,等.一种耐高温光纤式叶尖定时传感器及验证装置[J].纳米技术与精密工程,2016,14(3),167-172.FENG Junnan,DUAN Fajie,YE Dechao,et al.An optical fiber tip-timing sensor with high temperature resistant capacity and testing device[J].Nanotechnology and Precision Engineering,2016,14(3):167-172.(in Chinese) [17] RIGOSI G,BATTIATO G,BERRUTI T M.Synchronous vibration parameters identification by tip timing measurements[J].Mechanics Research Communications,2017,79(1):7-14. [18] DIAMOND D H,HEYNS P S.A novel method for the design of proximity sensor configuration for rotor blade tip timing[J].Journal of Vibration and Acoustics,2018,140(6):8061003.1-8061003.8. [19] 胡伟,王德友,杜少辉,等.非接触式数字光纤叶片测振系统研究及应用[J].航空动力学报,2010,36(1):37-41.HU Wei,WANG Deyou,DU Shaohui,et al.Investigation and application of non-contact digital optical fiber rotor blade vibration measurement system[J].Journal of Aerospace Power,2010,36(1):37-41.(in Chinese)
点击查看大图
计量
- 文章访问数: 1275
- HTML浏览量: 7
- PDF量: 1222
- 被引次数: 0