Vibration Characteristics Analysis of a Spur Gear Rotor System with the Pitch Deviation
Vibration Characteristics Analysis of a Spur Gear Rotor System with the Pitch Deviation
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DOI：
10.3901/jme.2016.13.131
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发表时间：
2016
影响因子：
--
通讯作者：
Qi-bin Wang
中科院分区：
文献类型：
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作者：
Qi-bin Wang
针对具有节距偏差的工程齿轮，研究了具有节距偏差的齿轮转子系统的振动特性。建立了节距偏差对齿轮啮合刚度和空载传动误差影响的分析模型。在此基础上，建立了通用齿轮动力学模型。将该模型与转子系统模型相结合，建立了齿轮转子系统的有限元模型。然后考虑齿距偏差的影响，分析了直齿轮转子系统的振动特性。结果表明：考虑节距偏差，双齿啮合区齿轮啮合刚度减小，空载传动误差增大；随着节距偏差的增大，齿轮系统的振动增大，啮合频率和高次谐波的边带出现。这些侧带主要由主动、从动齿轮的转动频率和转动频率的多频组成。较小的俯仰偏差和较大的转矩可以减小边带的振幅。
： For the engineering gear with the pitch deviation, vibration characteristics of a gear rotor system with the pitch deviation are studied. A model is introduced for analyzing the influence of pitch deviation on the gear mesh stiffness and no load transmission error. Based on this model, a general gear dynamic model is developed. Combined this model with the rotor system model, a finite element model of the gear rotor system is established. Then considering the effects of the tooth pitch deviation, vibration characteristics of a spur gear rotor system are analyzed. The results showed that the gear mesh stiffness of double teeth meshing area decreases and no load transmission error increases considering the pitch deviation. What’s more, the vibration of gear system increases and the side bands of mesh frequency and higher-order harmonics can be found with the pitch deviation. Those side bands are mainly composed of driving and driven gear rotational frequencies and multiple-frequencies of rotational frequencies. The amplitudes of the side bands can be decreased by the less pitch deviation and bigger torque.