为识别齿轮传动系统实测信号中的未知成分，建立含定轴裂纹故障及行星轮断齿故障的两级定轴齿轮+一级行星轮齿轮传动系统无量纲动力学方程。对比研究正常与耦合故障状态下的分岔特性，及不同激励频率下的Poincaré截面及频谱图，分析耦合故障引起的故障频率特征。通过仿真分析发现：行星轮故障对高转速敏感，定轴故障对低转速敏感，而二者的耦合使定轴齿轮振动频域上出现相互关联的频率峰值；不同激励频率下两种故障的频率特征及贡献不同。通过仿真结果发现了实测信号中未知峰值及故障频率的成因。
Abstract
In order to identify theunknown components in the experimental signals of the gear transmission system, dimensionless dynamical equations of gear transmission system which contains a two-stage fixed-axis gear with crack fault and a one-stage planetary gear with chipping fault were established. Contrasted bifurcation characteristics of system in normal condition and coupling faults condition, and the change of Poincaré section andfrequency spectrum under different excitation frequencies. Analyze thefailure frequency characteristics caused by the coupling faults. Simulation analysis shows that the planetary fault is sensitive to high speed, the fixed-axis gear fault is sensitive to low speed, and the coupling of both makes the frequency peaks appear in the vibration frequency of fixed axis gear. The characteristics and contributions of the failure frequency of two faults are different in different excitation frequencies. The simulation results find the cause of the unknown peak and the failure frequency of the experimental signals.
关键词
行星齿轮传动 /
非线性动力学 /
耦合故障 /
故障特性
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Key words
Planetary gear transmission /
Nonlinear dynamical /
Coupling faults /
Failure characteristics
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参考文献
[1] 罗跃纲, 张松鹤, 闻邦椿. 转子-轴承系统裂纹-碰摩耦合故障的非线性特性研究[J]. 振动与冲击, 2005, 24(3)：43-46, 4-5.
LUO Yue-gang, ZHANG Song-he, WEN Bang-chun. Study on nonlinear characteristics of rotor-bearing system with coupling faults of crack and rub-mpact[J]. Journal of Vibration and Shock, 2005, 24(3)：43-46, 4-5.
[2] 陈 果. 转子-滚动轴承-机匣耦合系统的不平衡/松动耦合故障非线性动力学[J]. 机械工程学报, 2008, 44(3)：82-88.
CHEN Guo. Nonlinear dynamics of unbalance-looseness coupling faults of rotor-ball bearing-stator coupling system[J]. Journal of Mechanical Engineering, 2008, 44(3)：82-88.
[3] LI Z X, YAN X P, YUAN C Q, et al. A fault diagnosis approach for gears using multidimensional features and intelligent classifier[J]. Noise & Vibration Worldwide, 2010, 76-88.
[4] 梁晓玉, 徐玉秀, 邢 刚, 等. 行星齿轮传动系统复杂微弱故障的非线性特性[J]. 机械科学与技术, 2013, 34(4)：538-543.
LIANG Xiao-yu, XU Yu-xiu, XING Gang, et al. Nonlinear characteristics of complex and weak faults of planetary gear transmission system[J]. Mechanical Science and Technology for Aerospace Engineering, 2013, 34(4)： 538-543.
[5] 徐玉秀, 赵晓清, 杨文平, 等. 多参数与多测点信息融合的行星轮故障诊断[J]. 仪器仪表学报, 2014, 08：1789-1795.
XU Yu-xiu, ZHAO Xiao-qing, YANG Wen-ping, et al. Fault classification with multi-point based on SVM[J]. Chinese Journal of Scientific Instrument, 2014, 08：1789-1795.
[6] 秦大同, 龙 威, 杨 军, 等. 变风速运行控制下风电传动系统的动态特性[J]. 机械工程学报, 2012, 48(7)：1-8.
QIN Da-tong, LONG Wei, YANG Jun, et al. Dynamic characteristics of wind turbine transmission system under varying wind speed and operation control conditions[J]. Journal of Mechanical Engineering, 2012, 48(7)：1-8.
[7] 秦大同, 田苗苗, 杨 军. 变风载下风力发电机齿轮传动系统动力学特性研究[J]. 太阳能学报, 2012, 33(2)：190-196.
QIN Da-tong, TIAN Miao-miao, YANG Jun. Study on dynamic characteristics of gear transmission system of wind generator under varying wind load[J]. Acta Energiae Solaris Sinica, 2012, 33(2)：190-196.
[8] LIANG X H, MING J. Z, MAYANK P. Analytically evaluating the influence of crack on the mesh stiffness of a planetary gear set[J]. Mech. Mach. Theory, 2014, 76：20-38.
[9] KAPELEVICH A, SHEKHTMAN Y. Tooth fillet profile optimization for gears with symmetric and asymmetric teeth[J]. Gear Technol, 2009：73-79.
[10] TIAN X, ZUO M J, FYFE K. Analysis of the vibration response of a gearbox with gear tooth faults[J]. ASME international mechanical engineering congress and exposition, Anaheim, California, USA, 2004.
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