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Torsional Oscillations in Automotive Transmissions: Experimental Analysis and Modelling

机译：汽车变速器的扭转振荡：实验分析与建模

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摘要

The paper investigates the torsional oscillations of an automotive transmission system by means of an experimental test bench used to validate the proposed lumped parameter model. The rig consists of a Dual Clutch Transmission (DCT) and a Manual Transmission (MT) connected through the respective output shafts, while the excitation is provided by two electric motors, which are controlled in speed or torque. The experimental analysis includes the measurement of the external torques, applied by the two electric motors to the mechanical system, and the measurement of the system response in terms of angular speeds at different positions along the transmission line. The frequency response of the system is estimated from the experimental data and compared with the results of a 5-degree-of-freedom lumped parameter model, which proves to be adequate to describe the dynamic behaviour of the system up to a frequency of 200 Hz. The comparison between simulated results and experimental data shows good agreement, so the model can be used to predict the torsional vibrations of the transmission system in the linear field. Moreover, the effects of the nonlinearities associated with the mean value of the excitations are shown. Finally the influence of the selected gear ratio on the experimental frequency response is discussed.
机译：本文通过用于验证所提出的集总参数模型的实验测试台来研究汽车传动系统的扭转振动。该钻机由通过各自的输出轴连接的双离合器变速箱（DCT）和手动变速箱（MT）组成，而励磁由两个电动机控制，电动机的速度或扭矩受到控制。实验分析包括两个电动机施加到机械系统的外部扭矩的测量，以及沿着传输线在不同位置的角速度方面的系统响应的测量。根据实验数据估算系统的频率响应，并将其与5自由度集总参数模型的结果进行比较，证明该模型足以描述高达200 Hz频率的系统的动态行为。 。仿真结果与实验数据的比较表明吻合良好，因此该模型可用于预测传动系统在线性场中的扭转振动。此外，还显示了与激励平均值相关的非线性影响。最后讨论了所选传动比对实验频率响应的影响。

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  • 来源
    《Shock and vibration》 |2016年第3期|5721960.1-5721960.14|共14页
  • 作者

    Galvagno Enrico; Velardocchia Mauro; Vigliani Alessandro;

  • 作者单位

    Politecn Torino, Dipartimento Ingn Meccan & Aerosp, Corso Duca Abruzzi 24, I-10129 Turin, Italy;

    Politecn Torino, Dipartimento Ingn Meccan & Aerosp, Corso Duca Abruzzi 24, I-10129 Turin, Italy;

    Politecn Torino, Dipartimento Ingn Meccan & Aerosp, Corso Duca Abruzzi 24, I-10129 Turin, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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