Simulation of track vehicle passability

The paper describes the vehicle passability testing possibilities using computational simulation system ADAMS AVT. The vehicle passability is one part of the vehicle handling. The vehicle passability simulation calculations can quickly and cheaply help come up with the answers on basic and supplementary questions on the design influence changes in the area of car properties testing. The aim of the simulations is to acknowledge the possibility of the usage of analysis simulation results for the investigation of passability of a tracked vehicle. These simulations were executed with the help of computing system Adams AVT. The simulation and analysis results described riding of a tracked vehicle BMP 1 uphill. Terrain vehicle passability given by stair step up ability, ditch traverse ability, by the ability of vehicles to surmount definite angle of gradient, fordability or deep fording ability is given by the vehicle design. It is useful to have some more information, the influence of what might change the ability of the vehicle overrule a definite angle uphill, for example. It can be information, how it is possible best to affect the vehicle ability to fetch through obstacles with low adhesion or else. The simulation calculations can help find quick answers to basic and additional questions of the design change influences at the area of testing the vehicle passability. The first part of the article contains a description of partial computation simulation model construction, which the calculations are associated with. The binding conditions of calculations are mentioned also. In the second part of the article there are the results of performed simulation calculations mentioned and evaluated. These calculations are performed in order to find out the influence of the operation conditions on the vehicle passability. Real operation conditions are the invasive vehicle speed into a slope in this case. They are the input data of simulation. Under investigation is the change of the maximum beaten distance uphill that the vehicle is able to overcome. They are the output data of simulation.