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首页> 外文会议>Proceedings of the 3rd international conference on electrical and information technologies for rail transportation: transportation >Analysis of Running Stability of High-Power Locomotive Under Harmonic Wear Wheel
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Analysis of Running Stability of High-Power Locomotive Under Harmonic Wear Wheel

机译：谐波磨损轮下大功率机车的运行稳定性分析

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摘要

Harmonic wear is one of the most common forms of out-of-round wheel (OOR), especially in heavy locomotives, potentially affecting the running stability. In this paper, a locomotive wheel-rail interaction coupled dynamic model was established for numerical simulation, and common harmonic wear types of locomotive wheels were employed as excitations of the dynamic model. Then, accelerations and Sperling indices of the locomotive in different harmonic wear types were calculated and compared. The result shows that harmonic order has a great influence on locomotive lateral vibration, and has a little effect on the vertical vibration in the same harmonic wave depth; harmonic wave depths have a larger effect on the lateral and vertical Sperling indices in the same harmonic order; compared with no harmonic wear, the lateral stability in different harmonic wear types will change obviously while the vertical stability will not change significantly.
机译：谐波磨损是偏心轮（OOR）的最常见形式之一，尤其是在重型机车中，可能会影响运行稳定性。本文建立了机车轮轨相互作用耦合动力学模型进行数值模拟，并以机车车轮常见的谐波磨损类型作为动力学模型的激励。然后，计算并比较了机车在不同谐波磨损类型下的加速度和斯珀林指数。结果表明，在相同的谐波深度下，谐波阶数对机车横向振动影响较大，对垂直振动的影响较小。谐波深度以相同的谐波次数对横向和垂直斯珀林指数有较大影响；与无谐波磨损相比，不同谐波磨损类型的侧向稳定性将发生明显变化，而垂直稳定性则不会发生明显变化。

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