Accession Number : AD0803194

Title :   A COMPUTER ANALYSIS OF VEHICLE DYNAMICS WHILE TRAVERSING HARD SURFACE TERRAIN PROFILES.

Descriptive Note : Final rept.

Corporate Author : FMC CORP SAN JOSE CA ORDNANCE ENGINEERING DIV

Report Date : FEB 1966

Pagination or Media Count : 199

Abstract : This computer study has shown that ground mobility and ride dynamics can be accurately computed by using a digital computer. The study further indicates that the accuracy of the computer analysis is dependent upon the degree of care exercised in describing the vehicle and the hard surface terrain profile to the computer. The most accurate way to describe most hard surface terrain profiles is with a table of field survey data. The computer, by using table-look-up and linear interpolation, can easily compute vehicle forcing functions. The study has shown that vehicle mathematical models can be accurately developed by describing the motions of the vehicle by a series of differential equations. Actual descriptions of the vehicle and suspension are required for an accurate computer solution. The dynamic force-rate tables for the shocks and force deflection tables for the springs are important inputs to the computer program. A computer solution for vehicle ride dynamics can accurately compute vehicle responses from careful descriptions of the hard-surface terrain profile and vehicle assembly. (Author)

Descriptors :   (*VEHICLES, DYNAMICS), (*DYNAMICS, COMPUTER PROGRAMMING), MOBILITY, TERRAIN MODELS, FEASIBILITY STUDIES, DIGITAL COMPUTERS, COMPUTER LOGIC, MATHEMATICAL MODELS, FOURIER ANALYSIS, CURVE FITTING, CONTROL SEQUENCES, CORRELATION TECHNIQUES, FORCE(MECHANICS).

Subject Categories : Statistics and Probability
      Computer Programming and Software
      Computer Hardware
      Surface Transportation and Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE