| Citation: | SONG Ziyu, HONG Jie, WANG Yongfeng, et al. Bearing dynamic load control method for high speed flexible rotor system of GTF engine[J]. Journal of Aerospace Power, 2022, 37（10）：2213-2223 doi: 10.13224/j.cnki.jasp.20220274
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The mechanical model and finite element model of the high speed flexible rotor system of GTF (geared turbofan) engine were established. Based on analysis of the composition and characteristics of bearing dynamic load, the critical speed bearing dynamic load control method and modal shape control evaluation parameters were proposed. In this method, the angular motion of the large inertial component in the critical speed modal shape was controlled, the sensitivity of the rotor to couple unbalance excitation was reduced, and the node position of the bending modal shape was controlled close to the bearing, so as to realize the bearing dynamic load control under the lateral bending critical speeds of the high speed flexible rotor system. The results showed that the above critical speed modal shape control can be achieved by adopting the double supporting layout around the low-pressure turbine and optimizing the conical shell stiffness of the low-pressure compressor. The effectiveness of bearing dynamic load control method was verified by the 14% − 65% reduction of bearing dynamic load under the lateral bending critical speeds.
| [1] |
沈锡钢. 大涵道比涡扇发动机总体性能与循环参数设计[J]. 航空科学技术,2011(4): 4-7. doi: 10.3969/j.issn.1007-5453.2011.04.002
SHEN Xigang. Design of performance and cycle parameters of high bypass ratio turbofan[J]. Aeronautical Science and Technology,2011(4): 4-7. (in Chinese) doi: 10.3969/j.issn.1007-5453.2011.04.002
|
| [2] |
KURZKE J. Fundamental differences between conventional and geared turbofans[R]. ASME GT2009-59745,2009.
|
| [3] |
梁春华. 齿轮驱动涡扇发动机的发展和关键技术[J]. 航空科学技术,2006(3): 14-17. doi: 10.3969/j.issn.1007-5453.2006.03.004
LIANG Chunhua. Key technologies and development of geared turbofan engine[J]. Aeronautical Science and Technology,2006(3): 14-17. (in Chinese) doi: 10.3969/j.issn.1007-5453.2006.03.004
|
| [4] |
OLIVER S,HERMANN K. Aero engine concepts beyond 2030: part 1 the steam injecting and recovering aero engine[J]. Journal of Engineering for Gas Turbines and Power,2021,143(2): 021001.1-021001.10. doi: 10.1115/1.4048985
|
| [5] |
陈懋章,刘宝杰. 大涵道比涡扇发动机风扇/压气机气动设计技术分析[J]. 航空学报,2008,29(3): 513-526. doi: 10.3321/j.issn:1000-6893.2008.03.001
CHEN Maozhang,LIU Baojie. Fan/compressor aero design technology for high bypass ratio turbofan[J]. Acta Aeronautica et Astronautica Sinica,2008,29(3): 513-526. (in Chinese) doi: 10.3321/j.issn:1000-6893.2008.03.001
|
| [6] |
陈云永,杨小贺,卫飞飞. 大涵道比风扇设计技术发展趋势[J]. 航空学报,2017,38(9): 22-29. doi: 10.7527/S1000-6893.2017.620953
CHEN Yunyong,YANG Xiaohe,WEI Feifei. Development trend of high bypass ratio turbofans design technology[J]. Acta Aeronautica et Astronautica Sinica,2017,38(9): 22-29. (in Chinese) doi: 10.7527/S1000-6893.2017.620953
|
| [7] |
DEWANJI D,RAO G A,JOS V B. Feasibility study of some novel concepts for high bypass ratio turbofan engines[R]. ASME GT2009-59166,2009.
|
| [8] |
LANGSTON L S. Gears steer new engine designs[J]. Mechanical Engineering,2017,139(9): 54-55. doi: 10.1115/1.2017-Sep-7
|
| [9] |
LUND J W,ORCUTT F K. Calculations and experiments on the unbalance response of a flexible rotor[J]. Journal of Manufacturing Science and Engineering,1967,89(4): 785-796.
|
| [10] |
RIEGER N F. Unbalance response of an elastic rotor in damped flexible bearings at supercritical speeds[J]. Journal of Engineering for Gas Turbines and Power,1971,93(2): 265-275.
|
| [11] |
RABINOWITZ M D,HAHN E J. Steady-state performance of squeeze film damper supported flexible rotors[J]. Journal of Engineering for Gas Turbines and Power,1977,99(4): 552-558.
|
| [12] |
CUNNINGHAM R E. Steady-state unbalance response of a three-disk flexible rotor on flexible, damped supports[J]. Journal of Mechanical Design,1978,100(3): 563-573. doi: 10.1115/1.3453969
|
| [13] |
PALAZZOLO A B,GUNTER E J. Modal balancing of a multi-mass flexible rotor without trial weights[R]. ASME 82-GT-267,1982.
|
| [14] |
TONNESEN J. Further experiments on balancing of a high-speed flexible rotor[J]. Journal of Manufacturing Science and Engineering,1974,96(2): 431-440.
|
| [15] |
DARLOW M S,SMALLEY A J,PARKINSON A G. Demonstration of a unified approach to the balancing of flexible rotors[J]. Journal of Engineering for Gas Turbines and Power,1981,103(1): 101-107.
|
| [16] |
CHU F,HOLMES R. The effect of squeeze film damper parameters on the unbalance response and stability of a flexible rotor[R]. ASME 96-GT-377,1996.
|
| [17] |
BONELLO P,BRENNAN M J,HOLMES R. A study of the nonlinear interaction between an eccentric squeeze film damper and an unbalanced flexible rotor[J]. Journal of Engineering for Gas Turbines and Power,2004,126(4): 855-866. doi: 10.1115/1.1787503
|
| [18] |
HE F,ALLAIRE P E,DOUSTI S,et al. Forced response of a flexible rotor with squeeze film damper under parametric change[R]. ASME GT2013-95861,2013.
|
| [19] |
韩清凯,王浩博,吕昊,等.大型挤压油膜阻尼器非线性动力学分析与优化研究进展[EB/OL]. [2022-04-04]. http://kns.cnki.net/kcms/detail/43.1409.O3.20211217.0850.002.html
HAN Qingkai,WANG Haobo,LÜ Hao,et al.Progress review on nonlinear dynamics analyses and optimization for large-scaled squeeze film dampers[EB/OL]. [2022-04-04]. http://kns.cnki.net/kcms/detail/43.1409.O3.20211217.0850.002.html. (in Chinese)
|
| [20] |
邓旺群,高德平. 涡轴发动机动力涡轮转子高速动平衡技术研究[J]. 航空动力学报,2003,18(5): 669-675. doi: 10.3969/j.issn.1000-8055.2003.05.017
DENG Wangqun,GAO Deping. High speed dynamic balance technique of a power turbine rotor of a turbine shaft engine[J]. Journal of Aerospace Power,2003,18(5): 669-675. (in Chinese) doi: 10.3969/j.issn.1000-8055.2003.05.017
|
| [21] |
邓旺群,高德平,刘金南,等. 转子高速动平衡技术在涡轴发动机整机减振中的作用[J]. 航空动力学报,2005,20(1): 78-85. doi: 10.3969/j.issn.1000-8055.2005.01.015
DENG Wangqun,GAO Deping,LIU Jinnan,et al. Effect of high speed dynamic balance technique on turboshaft engine vibration reduction[J]. Journal of Aerospace Power,2005,20(1): 78-85. (in Chinese) doi: 10.3969/j.issn.1000-8055.2005.01.015
|
| [22] |
邓旺群,聂卫健,徐友良,等. 涡扇发动机高速柔性转子振动故障分析及平衡技术研究[J]. 燃气涡轮试验与研究,2018,31(1): 24-30, 58. doi: 10.3969/j.issn.1672-2620.2018.01.005
DENG Wangqun,NIE Weijian,XUN Youliang,et al. Vibration fault analysis and balance technique study on a high speed flexible rotor of a turbofan engine[J]. Gas Turbine Experiment and Research,2018,31(1): 24-30, 58. (in Chinese) doi: 10.3969/j.issn.1672-2620.2018.01.005
|
| [23] |
付才高.航空发动机设计手册:第19册 转子动力学及整机振动[M].北京:航空工业出版社,2000.
|
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