Time Domain Model of Road Undulation Excitation to Vehicles

Abstract:

Road irregularity, as a stationary stochastic process, is generally illustrated by the power spectral density (PSD) in frequency domain. Based on the frequency models, three time domain models of to the unevenness excitation to vehicles from road surfaces were presented in accordance with the standard or measured road PSD. The properties of the resulting models were theoretically discussed and mathematically realized. Finally, the further research topics were given in the paper.