小展弦比压气机转子叶片颤振研究

吴长波; 周拜豪; 陆庆飞; 崔海涛

doi:10.13224/j.cnki.jasp.2016.04.029

小展弦比压气机转子叶片颤振研究

doi: 10.13224/j.cnki.jasp.2016.04.029

1. 南京航空航天大学能源与动力学院, 南京 210016;
2. 中国航空工业集团公司中国燃气涡轮研究院, 成都 610500

详细信息

作者简介:
吴长波(1974-),男,山东烟台人,研究员,博士生,主要从事航空发动机强度及材料应用研究.

中图分类号: V231.3
计量
- 文章访问数: 1282
- HTML浏览量: 227
- PDF量: 539
- 被引次数: 0
出版历程
- 收稿日期: 2014-08-20
- 刊出日期: 2016-04-28

Flutter investigation of small aspect ratio compressor rotor blade

1. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China

摘要

摘要: 针对小展弦比压气机转子叶片特点,在能量法计算基础上提出了两种颤振评判方法,即首先利用结构动力学分析结果对叶片频率分离度、振型和共振进行分析,判断某压气机小展弦比转子叶片存在高阶耦合颤振的可能;然后将结构动力学得到的振动位移插值到气动网格上,进行三维非定常黏性流场计算,得到非定常气动功,判断叶片是否存在失速颤振的可能.最后综合利用两部分分析结果和试验及断口分析情况,综合给出该小展弦比压气机叶片因失速颤振和耦合颤振共同作用,导致叶片在短时间内出现了裂纹.
- 小展弦比 /
- 能量法 /
- 耦合颤振 /
- 失速颤振 /
- 裂纹
Abstract: For the characteristics of small aspect ratio compressor rotor blade, two judgement methods on the basis of energy method were presented. The analysis results of structure dynamics were employed to analyze the rotor frequency dispersion, vibration mode and resonance vibration, while the possibility of high mode coupled flutter was estimated. Then the vibration displacements from structure dynamics into aerodynamic mesh were applied to calculate three dimensional nonsteady viscous filed to get unsteady aerodynamic work, estimating the possibility of stall flutter. Finally, considering two analysis results as well as the test results and fracture analysis, cracks appeared in small aspect ratio compressor rotor blade within a short time due to the combined effects of stall flutter and coupled flutter.
- small aspect ratio /
- energy method /
- coupled flutter /
- stall flutter /
- cracks

HTML

参考文献(19)

[1]	《航空发动机设计手册》总编委会.航空发动机设计手册:第18册叶片轮盘及主轴强度分析[M].北京:航空工业出版社,2001.
[2]	饶寿期.航空涡喷涡扇发动机结构设计准则研究报告:第3册叶片[M].北京:中国航空工业总公司发动机系统工程局,1997.
[3]	Steffens K.Advanced compressor technology-key success factor for competitiveness in modern aero engines[R].ISABE-2001-1009,2001.
[4]	Wadia A R,Hah C,Rabe D.The impact of forward sweep on tip clearance flows in transonic compressors[R].ICAS 2004-6.2.1,2004.
[5]	Thomson D,Watson K,Gorrell S.Assessment of organic matrix composites for a forward swept fan stage[R].AIAA-94-1353-CP,1994.
[6]	Wadia A R,Szucs P N,Crall D W.Inner workings of aerodynamic sweep[J].Journal of Turbomachinery,1998,120(4):671-682.
[7]	桂幸民,周拜豪.压缩系统跨声进口级弯掠叶片空气动力学概述[J].航空动力学报,1995,10(4):407-411. GUI Xingmin,ZHOU Baihao.A summary of lean-sweep aerodynamics in transonia inlet stages for compression system[J].Journal of Aerospace Power,1995,10(4):407-411.(in Chinese)
[8]	张明明.轴流压气机气动弹性失稳机理研究[D].北京:北京航空航天大学,2013:5-6. ZHANG Mingming.Investigation on the mechanism of aeroelasticity instability in axial compressor[J].Beijing:Beijing University of Aeronauttics and Astronautics,2013:5-6.(in Chinese)
[9]	吴长波,崔海涛,徐拓,等.某风机叶片的弯扭耦合颤振问题分析与验证[J].航空动力学报,2012,27(3):623-627. WU Changbo,CUI Haitao,XU Tuo,et al.Analysis and experiment on coupled flutter of a wide-chord blade,[J].Journal of Aerospace Power,2012,27(3):623-627.(in Chinese)
[10]	徐峰,李春松,罗秋生,等.轴流压气机整体叶盘叶片裂纹故障研究[J].燃气涡轮试验与研究,2012,25(4):25-29. XU Feng,LI Chunsong,LUO Qiusheng,et al.Study on the blade crack of an axial flow compressor blisk[J].Gas Turbine Experiment and Research,2012,25(4):25-29.(in Chinese)
[11]	周盛.叶轮机气动弹性力学引论[M].北京:国防工业出版社,1986.
[12]	Moffatt S,He Li.Blade force resonnse prediction for industrial gas turbines:Part Ⅰ methodologies[R].ASME Paper GT2003-38640,2003.
[13]	肖军,周新海,谷传纲,等.二维叶栅气固耦合颤振分析[J].航空动力学报,2006,21(1):106-111. XIAO Jun,ZHOU Xinhai,GU Chuangang,et al.Flutter analysis of 2-D cascades under gas-solid coupled conditions[J].Journal of Aerospace Power,2006,21(1):106-111.(in Chinese)
[14]	张小伟,王延荣,张潇,等.涡轮机械叶片的流固耦合数值计算方法[J].航空动力学报,2009,24(7):1622-1626. ZHANG Xiaowei,WANG Yanrong,ZHANG Xiao,et al.Numerical method for fluid-structure interaction in turbomachinery bladings[J].Journal of Aerospace Power,2009,24(7):1622-1626.(in Chinese)
[15]	Yang J Y.Third-order nonoscillatory schemes for the Euler equations[J].AIAA Journal,1991,29(10):161-168.
[16]	Bendisksen O.Aeroelastic problems in turbomachines[R].AIAA-90-115,1990.
[17]	吴长波,周拜豪,崔海涛,等.小展弦比带掠风扇转子叶片的耦合颤振[J].航空动力学报,2014,29(12):2885-2889. WU Changbo,ZHOU Baihao,CUI Haitao,et al.Coupling flutter characteristic analysis of swept rotor blade with small aspect ratio[J].Journal of Aerospace Power,,2014,29(12):2885-2889.(in Chinese)
[18]	Carta F O.Coupled blade-disk-shroud flutter instabilities in turbojet engine rotors[J].Journal of Engineering for Power,1967,89(3):419-427.
[19]	Gerolymos G A.Advances in the numerical integration of the three-dimensional Euler equations in vibrating cascades[R]. ASME Paper 92-GT-170,1992.