Simulation research of time domain model of road roughness with time-space correlation

WANG Ya;CHEN Si-zhong;ZHENG Kai-feng

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (5) : 70-74.

PDF(1386 KB)
PDF(1386 KB)
Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (5) : 70-74.
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Simulation research of time domain model of road roughness with time-space correlation

  • WANG Ya, CHEN Si-zhong,ZHENG Kai-feng
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Abstract

It is of significance to establish the time domain model of road for the theoretical research of modern vehicle. Harmony superposition method is applied to establish the road roughness of a single wheel. Two kinds of method are proposed to calculate the coherence of bilateral tract excitation, combined with the correlation of front and rear wheel, road roughness model of 4-wheel vehicle is built. Simulation results show that the two modeling method is correct in theory of coherence and can be applied to simulate stochastic road with a specific spectrum. Compared with other methods, proposed methods improve the efficiency of modeling.

Key words

road roughness / time domain model / harmony superposition / time-space correlation

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WANG Ya;CHEN Si-zhong;ZHENG Kai-feng. Simulation research of time domain model of road roughness with time-space correlation[J]. Journal of Vibration and Shock, 2013, 32(5): 70-74
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