Abstract
A multiple resolution cross-correlation (MRXcorr) procedure was created to align 6-degree-of-freedom (DOF) whole-body vibration (WBV) data time histories collected at the operator/set interface (OSI) and chassis of mobile forestry machinery. Three validation tests were conducted to substantiate the use of the MRXcorr. The results of these validation tests indicate that the MRXcorr can accurately determine the phase shift between two identical 6-DOF data time histories, as well as the phase shift between the 6-DOF chassis and simulated 6-DOF OSI data time histories for forestry skidders. The MRXcorr was also found to align actual field 6-DOF WBV data sets collected on the OSI and chassis of three forestry skidders better than a cross-correlation utilizing the entire length of the data time histories with r2-values from regression analyses between the two time histories being greater when those time histories were aligned with the MRXcorr 83.6% of the time.