Accession Number : AD0739916

Title :   Dynamics of Wheeled Vehicles. Report 4. A Statistical Analysis of Obstacle-Vehicle-Speed Systems.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Switzer,Gerald G.

Report Date : MAR 1972

Pagination or Media Count : 58

Abstract : 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)

Descriptors :   (*VEHICLES, DYNAMICS), (*VEHICLE CHASSIS COMPONENTS, TERRAIN), STATISTICAL ANALYSIS, ACCELERATION, VELOCITY, MATHEMATICAL MODELS, TRAFFICABILITY, MOBILITY, THESES

Subject Categories : Surface Transportation and Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE