Construction of road roughness in left and right wheel paths based on PSD and coherence function
Road roughness of bilateral paths is constructed based on PSD and coherence function. Constructed road roughness function is divided into original and perturbed parts. Auto-PSD of each part is derived through the specified PSD and coherence function. Road roughness is constructed based on auto-PSDs using the IFFT method. Constructed road roughness of bilateral paths satisfies both PSD and coherence function.
road roughness coherence function parallel wheel paths numerical simulation power spectral density (psd)