Tracked vehicle vibration response analysis based on power spectrum method in consideration of the influence of track circuit

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (18) : 94-101.

QIAO Xinyong，JIN Ying，DUAN Yu

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Abstract

The way for accurately describing the vehicle vibration response affected by the track was studied by fully considering the influence of track circuit.Through analysing the constraint relation of the track and the topological structure of the driving system, a complete dynamic model of the tracked vehicle was established.The track circuit model was established based on the assumption of continuous elastic track, and its inherent vibration characteristics were analysed by the eigenvalue method.The power spectrum method was used to compare the results by the dynamic models of flexible track and rigid track and to verify the effect of track on the vehicle vibration.Real vehicle tests were carried out to verify the accuracy of the model.The results show that the effect of track on the vehicle vibration mainly includes the inherent vibration of the track circuit and the high frequency vibration related to the track pitch.The track vibration energy holds ten to twenty-five percent of total vehicle vibration energy in general condition.

Key words

tracked vehicle / vibration response / dynamic simulation / track circuit / power spectral density

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QIAO Xinyong，JIN Ying，DUAN Yu. Tracked vehicle vibration response analysis based on power spectrum method in consideration of the influence of track circuit[J]. Journal of Vibration and Shock, 2021, 40(18): 94-101

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