| Citation: | SU Yue, XU Kaifu, GAO Yongqiang, et al. Influence of axial force on dynamic behavior of rocket engine turbopump[J]. Journal of Aerospace Power, 2024, 39（11）：20220859 doi: 10.13224/j.cnki.jasp.20220859
|
As an important component for transporting propellant, the turbopump has become the core of the rocket engine. Its axial force in high-speed operation has a significant effect on vibration. In order to improve the dynamic characteristics, a theoretical model of bearing stiffness was established. The evolution law of bearing stiffness with rotational speed and axial force was clarified. Besides, a rotor tester including auxiliary supports was designed, and the influence of axial force on the rotor dynamics was explored through tests. Furthermore, through the transfer matrix method and the unbalanced response, a stiffness identification model based on the measured data was established. It was found that the stiffness increased significantly by 30%, after the axial force was introduced. And the sudden increase of the vibration amplitude did not occur. This shows that the improvement of stiffness by axial force is an important mechanism of vibration reduction, thus providing a theoretical basis for dynamic design.
| [1] |
金路,王俨剀,王彤,等. 涡轮泵转子失稳故障分析[J]. 火箭推进,2020,46(4): 23-30. JIN Lu,WANG Yankai,WANG Tong,et al. Analysis and diagnosis of turbine pump rotor instability[J]. Journal of Rocket Propulsion,2020,46(4): 23-30. (in Chinese
JIN Lu, WANG Yankai, WANG Tong, et al. Analysis and diagnosis of turbine pump rotor instability[J]. Journal of Rocket Propulsion, 2020, 46(4): 23-30. (in Chinese)
|
| [2] |
李斌,闫松,杨宝锋. 大推力液体火箭发动机结构中的力学问题[J]. 力学进展,2021,51(4): 831-864. LI Bin,YAN Song,YANG Baofeng. Mechanical problems of the large thrust liquid rocket engine[J]. Advances in Mechanics,2021,51(4): 831-864. (in Chinese
LI Bin, YAN Song, YANG Baofeng. Mechanical problems of the large thrust liquid rocket engine[J]. Advances in Mechanics, 2021, 51(4): 831-864. (in Chinese)
|
| [3] |
黄道琼,王振,杜大华. 大推力液体火箭发动机中的动力学问题[J]. 中国科学: 物理学 力学 天文学,2019,49(2): 23-34. HUANG Daoqiong,WANG Zhen,DU Dahua. Structural dynamics of the large thrust liquid rocket engines[J]. Scientia Sinica: Physica,Mechanica and Astronomica,2019,49(2): 23-34. (in Chinese
HUANG Daoqiong, WANG Zhen, DU Dahua. Structural dynamics of the large thrust liquid rocket engines[J]. Scientia Sinica: Physica, Mechanica and Astronomica, 2019, 49(2): 23-34. (in Chinese)
|
| [4] |
李斌,陈晖,马冬英,等. 500 tf级液氧煤油高压补燃发动机研制进展[J]. 火箭推进,2022,48(2): 1-10. LI Bin,CHEN Hui,MA Dongying,et al. Development of 500 tf class high pressure stage combustion LOX/kerosene rocket engine[J]. Journal of Rocket Propulsion,2022,48(2): 1-10. (in Chinese
LI Bin, CHEN Hui, MA Dongying, et al. Development of 500 tf class high pressure stage combustion LOX/kerosene rocket engine[J]. Journal of Rocket Propulsion, 2022, 48(2): 1-10. (in Chinese)
|
| [5] |
杜大华,李斌. 液体火箭发动机结构动力学设计关键技术研究综述[J]. 航空学报,2023,44(10): 027554. DU Dahua,LI Bin. Review on key structural dynamic design technologies in liquid rocket engines[J]. Acta Aeronautica et Astronautica Sinica,2023,44(10): 027554. (in Chinese
DU Dahua, LI Bin. Review on key structural dynamic design technologies in liquid rocket engines[J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(10): 027554. (in Chinese)
|
| [6] |
张振臻,陈晖,高玉闪,等. 液体火箭发动机故障诊断技术综述[J]. 推进技术,2022,43(6): 15-33. ZHANG Zhenzhen,CHEN Hui,GAO Yushan,et al. Review on fault diagnosis technology of liquid rocket engine[J]. Journal of Propulsion Technology,2022,43(6): 15-33. (in Chinese
ZHANG Zhenzhen, CHEN Hui, GAO Yushan, et al. Review on fault diagnosis technology of liquid rocket engine[J]. Journal of Propulsion Technology, 2022, 43(6): 15-33. (in Chinese)
|
| [7] |
杨宝锋,贾少锋,李斌,等. 大偏心及大扰动下涡轮泵密封转子动力特性[J]. 火箭推进,2019,45(6): 1-9. YANG Baofeng,JIA Shaofeng,LI Bin,et al. Investigation on rotordynamic characteristics of a turbopump seal under large eccentricities and disturbances[J]. Journal of Rocket Propulsion,2019,45(6): 1-9. (in Chinese
YANG Baofeng, JIA Shaofeng, LI Bin, et al. Investigation on rotordynamic characteristics of a turbopump seal under large eccentricities and disturbances[J]. Journal of Rocket Propulsion, 2019, 45(6): 1-9. (in Chinese)
|
| [8] |
ERTAS B H,VANCE J M. Effect of static and dynamic misalignment on ball bearing radial stiffness[J]. Journal of Propulsion and Power,2004,20(4): 634-647. doi: 10.2514/1.11462
|
| [9] |
窦唯,刘占生. 液体火箭发动机涡轮泵轴承支承刚度及轴向位置对转子系统临界转速的影响[J]. 导弹与航天运载技术,2013(3): 18-22. DOU Wei,LIU Zhansheng. Effect of turbo-pump bearing supporting stiffness and axial position on critical speed of rotor system in liquid rocket engine[J]. Missiles and Space Vehicles,2013(3): 18-22. (in Chinese
DOU Wei, LIU Zhansheng. Effect of turbo-pump bearing supporting stiffness and axial position on critical speed of rotor system in liquid rocket engine[J]. Missiles and Space Vehicles, 2013(3): 18-22. (in Chinese)
|
| [10] |
窦唯,褚宝鑫. 支承总刚度对涡轮泵转子临界转速及稳定性的影响[J]. 火箭推进,2014,40(1): 30-38. DOU Wei,CHU Baoxin. Effect of bearing supporting stiffness on dynamic stability and critical speed of turbopump rotor system[J]. Journal of Rocket Propulsion,2014,40(1): 30-38. (in Chinese
DOU Wei, CHU Baoxin. Effect of bearing supporting stiffness on dynamic stability and critical speed of turbopump rotor system[J]. Journal of Rocket Propulsion, 2014, 40(1): 30-38. (in Chinese)
|
| [11] |
窦唯,褚宝鑫,刘占生. 轴承支承总刚度对液体火箭发动机涡轮泵转子系统稳定性影响研究[J]. 推进技术,2013,34(2): 254-262. DOU Wei,CHU Baoxin,LIU Zhansheng. Effects of bearing supporting stiffness on dynamic stability of turbopump rotor system in liquid rocket engine[J]. Journal of Propulsion Technology,2013,34(2): 254-262. (in Chinese
DOU Wei, CHU Baoxin, LIU Zhansheng. Effects of bearing supporting stiffness on dynamic stability of turbopump rotor system in liquid rocket engine[J]. Journal of Propulsion Technology, 2013, 34(2): 254-262. (in Chinese)
|
| [12] |
杜家磊,李铭,王怡萱,等. 支承结构参与振动对涡轮泵转子动特性的影响[J]. 推进技术,2023,44(4): 210860. DU Jialei,LI Ming,WANG Yixuan,et al. Effects of vibration of supporting structure on dynamic characteristics of a turbopump rotor[J]. Journal of Propulsion Technology,2023,44(4): 210860. (in Chinese
DU Jialei, LI Ming, WANG Yixuan, et al. Effects of vibration of supporting structure on dynamic characteristics of a turbopump rotor[J]. Journal of Propulsion Technology, 2023, 44(4): 210860. (in Chinese)
|
| [13] |
王明凯,闫柯,马帅军,等. 联合载荷作用下精密角接触球轴承动态特性演变规律[J]. 航空动力学报,2022,37(6): 1134-1149. WANG Mingkai,YAN Ke,MA Shuaijun,et al. Evolutionary regularity of dynamic characteristics for precision angular contact ball bearing under combined loads[J]. Journal of Aerospace Power,2022,37(6): 1134-1149. (in Chinese
WANG Mingkai, YAN Ke, MA Shuaijun, et al. Evolutionary regularity of dynamic characteristics for precision angular contact ball bearing under combined loads[J]. Journal of Aerospace Power, 2022, 37(6): 1134-1149. (in Chinese)
|
| [14] |
李震,王青山,王瑞华,等. 不同预载机制和过盈量下角接触球轴承的动力学特性[J]. 航空动力学报,2024,39(1):20220334. LI Zhen,WANG Qingshan,WANG Ruihua,et al. Dynamic characteristics of angular contact ball bearings under different preloading mechanisms and interference amount[J] Journal of Aerospace Power,2024,39(1):20220334. (in Chinese
LI Zhen, WANG Qingshan, WANG Ruihua, et al. Dynamic characteristics of angular contact ball bearings under different preloading mechanisms and interference amount[J] Journal of Aerospace Power, 2024, 39（1）: 20220334. (in Chinese)
|
| [15] |
蒋云帆,廖明夫. 航空发动机高压转子前轴承刚度特性分析[J]. 推进技术,2014,35(8): 1123-1130. JIANG Yunfan,LIAO Mingfu. Stiffness characteristics analysis on high-pressure rotor front bearing of aero-engine[J]. Journal of Propulsion Technology,2014,35(8): 1123-1130. (in Chinese
JIANG Yunfan, LIAO Mingfu. Stiffness characteristics analysis on high-pressure rotor front bearing of aero-engine[J]. Journal of Propulsion Technology, 2014, 35(8): 1123-1130. (in Chinese)
|
| [16] |
蒋云帆,廖明夫,陈静,等. 发动机轴承装配条件对支承刚度的影响[J]. 振动、测试与诊断,2020,40(2): 348-354,421. JIANG Yunfan,LIAO Mingfu,CHEN Jing,et al. Support stiffness dependent on aero-engine bearing assembly conditions[J]. Journal of Vibration,Measurement & Diagnosis,2020,40(2): 348-354,421. (in Chinese
JIANG Yunfan, LIAO Mingfu, CHEN Jing, et al. Support stiffness dependent on aero-engine bearing assembly conditions[J]. Journal of Vibration, Measurement & Diagnosis, 2020, 40(2): 348-354, 421. (in Chinese)
|
| [17] |
洪杰,王华,肖大为,等. 转子支承动刚度对转子动力特性的影响分析[J]. 航空发动机,2008,34(1): 23-27. HONG Jie,WANG Hua,XIAO Dawei,et al. Effects of dynamic stiffness of rotor bearing on rotordynamic characteristics[J]. Aeroengine,2008,34(1): 23-27. (in Chinese
HONG Jie, WANG Hua, XIAO Dawei, et al. Effects of dynamic stiffness of rotor bearing on rotordynamic characteristics[J]. Aeroengine, 2008, 34(1): 23-27. (in Chinese)
|
| [18] |
景晓东. 某型航空发动机转子支承动刚度的有限元分析[D]. 沈阳: 沈阳航空航天大学,2013. JING Xiaodong. Finite element analysis of rotor support dynamic stiffness of an aeroengine[D]. Shenyang: Shenyang Aerospace University,2013. (in Chinese
JING Xiaodong. Finite element analysis of rotor support dynamic stiffness of an aeroengine[D]. Shenyang: Shenyang Aerospace University, 2013. (in Chinese)
|
| [19] |
黄金平,薛杰,窦昱,等. 涡轮泵准刚性转子的临界转速识别[J]. 火箭推进,2022,48(3): 25-31. HUANG Jinping,XUE Jie,DOU Yu,et al. Critical speed identification of quasi-rigid rotor for turbo-pump[J]. Journal of Rocket Propulsion,2022,48(3): 25-31. (in Chinese
HUANG Jinping, XUE Jie, DOU Yu, et al. Critical speed identification of quasi-rigid rotor for turbo-pump[J]. Journal of Rocket Propulsion, 2022, 48(3): 25-31. (in Chinese)
|
| [20] |
杜家磊,王怡萱,李铭,等. 超高转速氢涡轮泵柔性转子动特性仿真分析[J]. 火箭推进,2022,48(2): 86-93. DU Jialei,WANG Yixuan,LI Ming,et al. Dynamic characteristics simulation and analysis for the flexible rotor of an ultrahigh speed hydrogen turbopump[J]. Journal of Rocket Propulsion,2022,48(2): 86-93. (in Chinese
DU Jialei, WANG Yixuan, LI Ming, et al. Dynamic characteristics simulation and analysis for the flexible rotor of an ultrahigh speed hydrogen turbopump[J]. Journal of Rocket Propulsion, 2022, 48(2): 86-93. (in Chinese)
|
| [21] |
王维彬,巩岩博. 50吨级氢氧火箭发动机的设计与研制[J]. 推进技术,2021,42(7): 1458-1465. WANG Weibin,GONG Yanbo. Design and development of 50-ton LOX/LH2 rocket engine[J]. Journal of Propulsion Technology,2021,42(7): 1458-1465. (in Chinese
WANG Weibin, GONG Yanbo. Design and development of 50-ton LOX/LH2 rocket engine[J]. Journal of Propulsion Technology, 2021, 42(7): 1458-1465. (in Chinese)
|
| [22] |
弓路家. 液氧涡轮泵轴向力计算及空化流场分析[D]. 哈尔滨: 哈尔滨工业大学,2016. GONG Lujia. Axial force calculation and cavitation flow field analysis of liquid oxygen turbopump[D]. Harbin: Harbin Institute of Technology,2016. (in Chinese
GONG Lujia. Axial force calculation and cavitation flow field analysis of liquid oxygen turbopump[D]. Harbin: Harbin Institute of Technology, 2016. (in Chinese)
|
| [23] |
鲁鹏,廖明夫,李明. 一种动刚度的测试方法及其在动平衡中的应用[J]. 噪声与振动控制,2014,34(2): 207-211. LU Peng,LIAO Mingfu,LI Ming. Dynamic stiffness test and its application in analysis of unbalance response of rotors[J]. Noise and Vibration Control,2014,34(2): 207-211. (in Chinese
LU Peng, LIAO Mingfu, LI Ming. Dynamic stiffness test and its application in analysis of unbalance response of rotors[J]. Noise and Vibration Control, 2014, 34(2): 207-211. (in Chinese)
|
| [24] |
乔留春. 弹支结构用异型轴承刚度特性分析及试验研究[D]. 辽宁 大连: 大连理工大学,2018. QIAO Liuchun. Analysis and experimental study on stiffness characteristics of special-shaped bearings for elastic-supported structures[D]. Dalian Liaoning: Dalian University of Technology,2018. (in Chinese
QIAO Liuchun. Analysis and experimental study on stiffness characteristics of special-shaped bearings for elastic-supported structures[D]. Dalian Liaoning: Dalian University of Technology, 2018. (in Chinese)
|
| [25] |
雷晓波,廖明夫,鲁鹏,等. 一种测量转子动刚度的方法及应用[J]. 科学技术与工程,2013,13(15): 4284-4289. LEI Xiaobo,LIAO Mingfu,LU Peng,et al. A method of measuring rotor dynamic stiffness and application[J]. Science Technology and Engineering,2013,13(15): 4284-4289. (in Chinese
LEI Xiaobo, LIAO Mingfu, LU Peng, et al. A method of measuring rotor dynamic stiffness and application[J]. Science Technology and Engineering, 2013, 13(15): 4284-4289. (in Chinese)
|
| [26] |
赵文涛. 考虑实测支承动刚度的航空发动机整机振动建模及验证[D]. 南京: 南京航空航天大学,2012. ZHAO Wentao. Modeling and verification of aero-engine vibration considering measured dynamic stiffness of support[D]. Nanjing: Nanjing University of Aeronautics and Astronautics,2012. (in Chinese
ZHAO Wentao. Modeling and verification of aero-engine vibration considering measured dynamic stiffness of support[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2012. (in Chinese)
|
| [27] |
HARRIS T A,KOTZALAS M N. Rolling bearing analysis: 2 volume set[M]. Boca Raton,US: CRC Press,2006.
|
| [28] |
廖明夫. 航空发动机转子动力学[M]. 西安: 西北工业大学出版社,2015. LIAO Mingfu. Rotor dynamics of aero-engine[M]. Xi’an: Northwestern Polytechnical University Press,2015. (in Chinese
LIAO Mingfu. Rotor dynamics of aero-engine[M]. Xi’an: Northwestern Polytechnical University Press, 2015. (in Chinese)
|
DownLoad:
