Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear System
Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear System
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DOI：
10.1155/2015/371408
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发表时间：
2015-11
影响因子：
0.9
通讯作者：
Shihua Zhou;Z. Ren;Guiqiu Song;B. Wen
中科院分区：
文献类型：
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作者：
Shihua Zhou;Z. Ren;Guiqiu Song;B. Wen
建立了考虑重力、偏心率、轴承间隙、传动误差和耦合横向扭转振动的十六自由度（16-DOF）集总参数动力学模型。基于动力学方程，采用龙格-库塔法研究了正齿轮转子轴承系统的动力学行为。研究重点是转速、偏心率和轴承间隙的影响，并通过振动波形、频谱和 3D 频谱呈现耦合多体动力学的非线性响应。结果表明，从动齿轮的转速出现在主动齿轮中，并且由于齿轮总成和耦合横向扭转振动的影响，齿轮的动态特性存在明显差异。轴承有其自身的共振频率，系统设计时应避免轴承变刚度频率的影响。本文的结果显示了正齿轮系统耦合横向扭转振动的分析。该研究可能有助于进一步了解这种正齿轮转子轴承系统的动态特性。
A sixteen-degree-of-freedom (16-DOF) lumped parameter dynamic model taking into account the gravity, eccentricity, bearing clearance, transmission error, and coupled lateral-torsional vibration is established. Based on the dynamical equation, the dynamic behaviors of the spur gear rotor bearing system are investigated by using Runge-Kutta method. The research focuses on the effect of rotational speed, eccentricity, and bearing clearance and nonlinear response of the coupled multibody dynamics is presented by vibration waveform, spectrum, and 3D frequency spectrum. The results show that the rotational frequency of the driven gear appears in the driving gear, and the dynamic characteristics of gears have obvious differences due to the effects of the gear assembly and the coupled lateral-torsional vibration. The bearing has its own resonance frequency, and the effect of the variable stiffness frequency of the bearings should be avoided during the system design. The results presented in this paper show an analysis of the coupled lateral-torsional vibration of the spur gear system. The study may contribute to a further understanding of the dynamic characteristics of such a spur gear rotor bearing system.