Accession Number:

ADA231656

Title:

Terrain Severity Data Generation at Yuma Proving Ground. Volume 1

Descriptive Note:

Final rept. Oct 1989-Nov 1990

Corporate Author:

NEVADA AUTOMOTIVE TEST CENTER CARSON CITY

Report Date:

1990-11-01

Pagination or Media Count:

287.0

Abstract:

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 monitoring road roughness characteristics are recommended. It is further recommended that a wave-number spectrum course roughness description replace the current RMS roughness index.

Subject Categories:

  • Surface Transportation and Equipment
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE