Scientific paper ID 3 : 2003/1

The interaction of a wheeled running mechanism and road with vehicle movement is accompanied with power losses that can be divided conditionally into losses for slipping and losses for running. The latter are basic with transport machine running on a solid road. These losses are considered in the differential equations of movement through which the dynamic qualities of transport machines are examined.

To obtain the necessary experimental data, a movable laboratory for examining the resistance with running under different road conditions has been created. The coefficients of the complete square form of the target function have been determined on the base of the data obtained using the regression analysis.

The differential equation has been obtained considering the resistance change with running and the dependence on road conditions and vehicle operational mode.