DYNAMICS OF WHEELED VEHICLES - REPORT 4 - A STATISTICAL ANALYSIS OF OBSTACLE-VEHICLE-SPEED SYSTEMS

APPROXIMATELY 300 TESTS WERE CONDUCTED WITH AN M37 3/4-TON TRUCK AT VARIOUS SPEEDS OVER SINGLE OBSTACLES OF VARIOUS HEIGHTS AND SHAPES. DATA FOR ACCELERATION- TIME-HISTORY, VEHICLE SPEED AND PITCH ANGLE, AND EVENT MARKINGS WERE RECORDED ON FM ANALOG TAPE, WHICH WAS PROCESSED BY AN ANALOG COMPUTER (DESCRIBED IN APPENDIX A). THE FOLLOWING PARAMETERS WERE DETERMINED (AT THE VEHICLE CENTER OF GRAVITY) FOR EACH TEST: (A) PEAK, ROOT MEAN SQUARE, AND MEAN ROOT MEAN SQUARE VALUES OF VERTICAL ACCELERATION, AND THE VECTOR SUM OF VERTICAL AND LONGITUDINAL ACCELERATION COMPONENTS; AND (B) VEHICLE IMPACT SPEED AND AVERAGE SPEED DURING OBSTACLE TRAVERSAL. LINEAR CORRELATIONS OF VEHICLE AVERAGE SPEED WITH PEAK AND STATISTICAL ACCELERATIONS WERE DETERMINED BY REGRESSION ANALYSIS. /AUTHOR/

• Corporate Authors:

  U.S. Army Waterways Experiment Station

  3909 Halls Ferry Road
  Vicksburg, MS  United States  39180-6199
• Authors:
  • Switzer, G G
• Publication Date: 1972-3

Media Info

• Pagination: 58 p.

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Mathematical models; Statistical analysis; Trucks; Vehicle performance; Velocity
• Old TRIS Terms: Truck performance
• Subject Areas: Data and Information Technology; Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00219478
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Tech Rept
• Files: TRIS
• Created Date: Sep 17 1973 12:00AM