The article describes the vehicle passability testing possibilities by the help of computational simulation with the usage of computing simulation system ADAMS AVT. The simulation calculations can help to find quick answers to basic and additional questions of design change influences in the area of testing vehicle passability. The first part of the article contents description of partial computation simulation models construction which the calculations are associated with. The binding conditions of calculations are mentioned also. In the second part of the article, there are mentioned and evaluated the results of performed simulation calculations. These calculations are performed in order to find out an influence of operation conditions on the vehicle passability. Real operation condition is invasive vehicle speed into a slope in this case. Under investigation is the change of the gradient angle uphill maximum and beaten distance uphill that is the vehicle able to overcome.

Abstract. 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.Keywords: simulation, computational modeling, testing of passability. IntroductionThe track vehicle handling can be tested in several ways. The handling test conducted on the vehicle prototype is the most exact way how to perform it. However, also the most expensive. Another option is to conduct the test on a faithful car model, where the cars are made under certain scale reduction in comparison with real sizes. All inaccuracies of the test results are directly proportional to the rate of the sizes of a smaller model to a real vehicle. Financial claims are in this case fundamentally lower. The third possibility of the vehicle handling test is the usage of a computer simulation. The computer modeling and the process of simulation, affecting the mechanical system, is an effective instrument how to investigate dynamic properties of mechanical systems [1; 2]. It is possible to benefit here from the computation simulation systems [3]. C...

The paper describes the vehicle passability testing possibilities using computational simulation system ADAMS AVT. The simulation calculations can help to find quick answers to basic and additional questions of design change influences at the area of testing vehicle passability. The first part of the article contents 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 are mentioned and evaluated the results of performed simulation calculations. These calculations are performed in order to find out an influence of operation conditions on the vehicle passability. Real operation condition is invasive vehicle speed into a slope in this case. Under investigation is the change of the maximum beaten distance uphill that is the vehicle able to overcome.

The article describes the possibilities of vehicle passability testing by the help of computational simulation. It is used here computing simulation system ADAMS AVT. The simulations can help to find quick answers to basic and additional questions of design change influences in the area of testing vehicle passability. The first part of the article contents description of partial computation simulation models construction which the calculations are associated with. There are mentioned the binding conditions of calculations also. There are mentioned and evaluated the results of performed simulation calculations in the second part of the article. These calculations are performed in order to find out an influence of operation conditions on the vehicle passability. Real operation condition is invasive vehicle speed into a slope in this case. Under investigation are the changes of beaten distance uphill that is the vehicle able to overcome.

The article describes mathematical model and possible usage of results of dynamic loading simulation of the chassis of track vehicle. The computational model is designed for computational simulating system MSC.ADAMS.AVT. Possibilities of research results usage are described in the article mainly. Results of simulation calculations were used for make-up of constructional parameters parts file of vehicle chassis and findings of influence their changes on changes of directional vehicle stability by running at first. Make -up of approximate relations for transaction of fast orientation calculations is second described possibility of results simulation calculations usage. The possibility of usage of results simulation to do verification of mathematical model is third possibility of usage results simulation calculations. The optimization of influence changes of several design value together is fourth possibility of usage of results simulation calculations that is described in this article.