Effects of Surface Waviness of Intershaft Bearing on Dynamic Characteristics of Dual Rotor System
-
摘要: 针对航空发动机双转子系统，根据转子动力学理论和拉格朗日方程建立中介轴承-双转子系统模型，采用数值仿真方法获得系统动力学特性，借助时变刚度曲线、幅频响应曲线、三维瀑布图、分岔图以及庞加莱截面图等，对比分析了理想中介轴承-双转子系统和考虑波纹度的中介轴承-双转子系统的时变刚度特性、中介轴承力、主共振、频谱特征以及分岔与混沌特性。结果表明，中介轴承波纹度使双转子系统运动状态更加复杂，尤其在较低转速下，波纹度会对双转子系统的动力学特性产生显著影响。Abstract: This work established a dynamic model of intershaft bearing-dual rotors in aero-engine with the theory of rotor dynamics and Lagrange equation. The vibration characteristics were examined by numerical simulation. With the time-varying stiffness curve, amplitude-frequency curve, three-dimensional waterfall plot, bifurcation diagram, Poincare map and so on, the time-varying stiffness characteristic, intershaft bearing force, primary resonance, spectrum characteristic, bifurcation and chaos characteristics of the ideal intershaft bearing-dual rotor system and the system with surface waviness on the intershaft bearing are analyzed comparatively. The results show that the surface waviness of the intershaft bearing complicated the vibration condition of the dual rotor system. The surface waviness has significant influence on the dual rotor system, especially at the lower speed.
-
表 1 系统计算参数
参数 数值 低压转子长度L/m 0.4 转速比λ -1.3 低、高压转子粘性阻尼系数C1, C2/(N·s·m-1) 1 400, 1 200 转子弹性模量E/Pa 2×1011 支承刚度α/(N·m-1) 1×107 低、高压转子盘偏心距s1, s2/m 7×106, 3×10-6 低、高压转子盘半径ri, ro/m 0.1, 0.1 低、高压转子盘质量m1, m2/kg 6, 10 低、高压转轴密度ρ1, ρ2/(kg·m-1.5) 7 800, 7 800 低压转轴半径R1/m 0.029 高压转轴内、外半径R2, R3/m 0.064, 0.08 中介轴承内外滚道半径Ri, Ro/m 0.03, 0.062 中介轴承径向游隙δ0/m 2×10-6 中介轴承刚度k/(N·m-1.5) 3×109 滚动体数Nb 9 
下载: 导出CSV
-
[1] 毛起广.表面粗糙度的评定和测量[M].北京:机械工业出版社, 1991 [2] Ferraris G, Maisonneuve V, Lalanne M. Prediction of the dynamic behavior of non-symmetrical coaxial co-or counter-rotating rotors[J]. Journal of Sound and Vibration, 1996, 195(4):649-666 doi: 10.1006/jsvi.1996.0452 [3] Hu Q H, Deng S E, Teng H F. A 5-DOF model for aeroengine spindle dual-rotor system analysis[J]. Chinese Journal of Aeronautics, 2011, 24(2):224-234 doi: 10.1016/S1000-9361(11)60027-7 [4] 邓四二, 付金辉, 王燕霜, 等.航空发动机滚动轴承-双转子系统动态特性分析[J].航空动力学报, 2013, 28(1):195-204 http://www.cqvip.com/QK/91591X/20131/45184707.htmlDeng S E, Fu J H, Wang Y S, et al. Analysis on dynamic characteristics of aero-engine rolling bearing/dual-rotor system[J]. Journal of Aerospace Power, 2013, 28(1):195-204(in Chinese) http://www.cqvip.com/QK/91591X/20131/45184707.html [5] Chen G. Vibration modelling and verifications for whole aero-engine[J]. Journal of Sound and Vibration, 2015, 349:163-176 doi: 10.1016/j.jsv.2015.03.029 [6] 路振勇.航空发动机转子系统的动力学建模及非线性振动研究[D].哈尔滨: 哈尔滨工业大学, 2017Lu Z Y. Dynamical modeling and nonlinear vibration study of aero-engine rotor system[D]. Harbin: Harbin Institute of Technology, 2017(in Chinese) [7] 崔江.双转子-滚动轴承系统的动力学特性研究[D].哈尔滨: 哈尔滨工业大学, 2017Cui J. Dynamic characteristic research of dual rotor-rolling bearing systems[D]. Harbin: Harbin Institute of Technology, 2017(in Chinese) [8] 胡绚.反向旋转双转子系统动力学特性研究[D].南京: 南京航空航天大学, 2007Hu X. Research on the dynamical characteristics of counter-rotating dual-rotor system[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2007(in Chinese) [9] 杨喜关.航空发动机反向旋转双转子系统及中介轴承动力特性研究[D].南京: 南京航空航天大学, 2014Yang X G. Research on dynamic characteristics of counter-rotating dual-rotor system and intermediate bearing in aero-engines[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2007(in Chinese) [10] Wang N F, Jiang D X, Xu H Z. Dynamic characteristics analysis of a dual-rotor system with inter-shaft bearing[J]. Proceedings of the Institution of Mechanical Engineers, Part G:Journal of Aerospace Engineering, 2019, 233(3):1147-1158 doi: 10.1177/0954410017748969 [11] 白雪川, 曹树谦, 杨蛟, 等.机动飞行时航空发动机反向旋转双转子动力学实验研究[J].机械科学与技术, 2015, 34(4):623-628 doi: 10.13433/j.cnki.1003-8728.2015.0427Bai X C, Cao S Q, Yang J, et al. Experiment research on aero-engine counter-rotating dual-rotor dynamics subjected to maneuvering conditions[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(4):623-628(in Chinese) doi: 10.13433/j.cnki.1003-8728.2015.0427 [12] Harsha S P, Sandeep K, Prakash R. Nonlinear dynamic response of a rotor bearing system due to surface waviness[J]. Nonlinear Dynamics, 2004, 37(2):91-114 doi: 10.1023/B:NODY.0000042916.10351.ff [13] 刘静.滚动轴承缺陷非线性激励机理与建模研究[D].重庆: 重庆大学, 2014Liu J. Nonlinear vibration mechanisms and modeling of defects in rolling element bearings[D]. Chongqing: Chongqing University, 2014(in Chinese) [14] 刘国云, 曾京, 戴焕云, 等.考虑轴箱轴承表面波纹度的高速车辆振动特性分析[J].机械工程学报, 2016, 52(14):147-156 http://qikan.cqvip.com/Qikan/Article/Detail?id=669831478Liu G Y, Zeng J, Dai H Y, et al. Vibration performance of high-speed vehicles under axle box bearing surface waviness[J]. Journal of Mechanical Engineering, 2016, 52(14):147-156(in Chinese) http://qikan.cqvip.com/Qikan/Article/Detail?id=669831478 [15] 符毅强, 陈予恕, 侯磊, 等.反向旋转双转子系统滞后特性分析[J].振动与冲击, 2015, 34(15):23-27, 37 http://www.cnki.com.cn/Article/CJFDTotal-ZDCJ201515006.htmFu Y Q, Chen Y S, Hou L, et al. A counter-rotating dual-rotor system's hysteretic characteristics[J]. Journal of Vibration and Shock, 2015, 34(15):23-27, 37(in Chinese) http://www.cnki.com.cn/Article/CJFDTotal-ZDCJ201515006.htm [16] 顾晓辉, 杨绍普, 刘永强, 等.表面波纹度对滚动轴承-转子系统非线性振动的影响[J].振动与冲击, 2014, 33(8):109-114 http://www.cnki.com.cn/Article/CJFDTotal-ZDCJ201408019.htmGu X H, Yang S P, Liu Y Q, et al. Effect of surface waviness on nonlinear vibration of a rotor with ball bearings[J]. Journal of Vibration and Shock, 2014, 33(8):109-114(in Chinese) http://www.cnki.com.cn/Article/CJFDTotal-ZDCJ201408019.htm [17] Hou L, Chen Y S, Fu Y Q, et al. Application of the HB-AFT method to the primary resonance analysis of a dual-rotor system[J]. Nonlinear Dynamics, 2017, 88(4):2531-2551 doi: 10.1007/s11071-017-3394-4 [18] Harsha S P. Nonlinear dynamic analysis of a high-speed rotor supported by rolling element bearings[J]. Journal of Sound and Vibration, 2006, 290(1-2):65-100 doi: 10.1016/j.jsv.2005.03.008 [19] 王海飞, 陈果.含滚动轴承径向游隙的航空发动机整机振动响应特征分析[J].推进技术, 2016, 37(5):945-959 http://d.wanfangdata.com.cn/Periodical/tjjs201605020Wang H F, Chen G. Characteristics analysis of aero-engine whole vibration response with rolling bearing radial clearance[J]. Journal of Propulsion Technology, 2016, 37(5):945-959(in Chinese) http://d.wanfangdata.com.cn/Periodical/tjjs201605020 [20] 符毅强.双转子系统非线性动力学响应分析[D].哈尔滨: 哈尔滨工业大学, 2015Fu Y Q. Nonlinear dynamic response analysis of dual-rotor system[D]. Harbin: Harbin Institute of Technology, 2015(in Chinese) -
点击查看大图
图(18) / 表(1)
计量
- 文章访问数: 217
- HTML全文浏览量: 90
- PDF下载量: 22
- 被引次数: 0
