为揭示齿轮传动系统对机车动力学特性的影响，采用多体动力学的方法，建立完整的考虑齿轮传动系统的重载机车空间耦合动力学模型。利用该动力学模型，研究齿轮时变啮合刚度与轨道几何不平顺激励同时作用下的重载机车动力学响应特性；通过与传统未考虑齿轮传动系统的重载机车多体动力学模型进行对比，揭示齿轮传动系统对重载机车动力学性能的影响。最后，利用试验数据验证建立的耦合动力学模型和仿真结果的正确性。研究结果表明：齿轮传动系统对重载机车动力学响应有一定的影响；两种动力学模型计算获得的机车运行过程中轮轨垂向力变化趋势基本一致，但考虑齿轮传动系统的重载机车动力学模型在本文计算条件下获得的轮轨垂向力增大约5 kN；两种动力学模型计算获得的轮轨横向力差异明显，在本文计算条件下比传统重载机车动力学模型增大约6 kN。
王自超
,
翟婉明
,
陈再刚
,
张杰
,
王开云
. 考虑齿轮传动系统的重载电力机车动力学性能研究[J]. 机械工程学报, 2018
, 54(6)
: 48
-54
.
DOI: 10.3901/JME.2018.06.048
In order to reveal the effect of the gear transmission system on the locomotive dynamics performance, the multi-body dynamics method is used to establish a completely coupled dynamic model of a heavy-haul locomotive in which the gear transmission system is considered. With this dynamics model, the dynamic response performance of the heavy-haul locomotive is investigated under the excitations from the time-varying mesh stiffness and the rail geometric irregularity. Then, influence of the gear transmission system on the dynamic performance of the heavy-haul locomotive is revealed through comparisons with the results from the traditional multi-body dynamics model of the heavy-haul locomotives without gear transmission system. At last, the established coupled dynamics model and the simulation results are validated by the experimentally tested data. The investigated results indicate that:gear transmission system has certain effect on the dynamic responses of the heavy-haul locomotive; the variation trend of the wheel-rail vertical force is basically the same for the two dynamics models, however, the amplitude of the wheel-rail vertical force calculated by the heavy-haul locomotive dynamics model with gear transmissions increases by about 5 kN under the calculation conditions; variations of the wheel-rail lateral forces appear obvious discrepancies between the two dynamics models, and the increase of the amplitude is about 6 kN for the heavy-haul locomotive dynamics model with gear transmissions under the calculation conditions.
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