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DTIC ADA231656: Terrain Severity Data Generation at Yuma Proving Ground. Volume 1

This report details the results of a course profiling exercise conducted at the Yuma Proving Grounds (YPG), Arizona, using the Nevada Automotive Test Center (NATC) Dynamic Force Measurement Vehicle (DFMV) methodology, the U.S. Army Waterways Experiment Station (WES) rod and level method and the Aberdeen Proving Ground (APG) inertial profilometer method. The rod and level method was used to establish the baseline for validation and comparison purposes. Eleven test courses were profiled at YPG. The test courses profiled included terrain representative of that used by the Army for ground- based vehicle durability testing. All data acquired was supplied to the U.S. Army Tank-Automotive Command for further analysis by their vehicle simulation department. For each of the eleven courses, a left- and right-wheel path elevation versus distance profile, a left- and right-wheel path wave-number spectrum and coherence function plots were computed for the four wheels on the DFMV. This data was compared to equal data from the rod and level and the inertial profilometer. Based upon the profiles and wave-number spectra computed using procedures in this report, techniques for measuring and monitori

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