CALCULATION METHOD OF THE STRENGTH OF FORTITUDE OF THE ROLLING-STOCK AND PATH CONTACT
The vertical and horizontal forces acting on elements of the freight wagon with the worst aggregate of maximum wears and clearances at insignificant wheel rolling do not exceed assumed values at boosted motion speed. Such rolling -stock may be exploited in accordance with specified motion speeds for freight wagon at the present time. The wearing of carriage components leads to the increase of the dynamic additions coefficient of vertical forces, angle of rotation of the trolley relative to the body, frame forces and wagon acceleration in general. In presence of the path inequality, the probability of excess of the critical edge pressures in rails raises and, the probability of stability margin of the pair couple on rails decreases. Practical results of the studies of design of the efficient, reliable in exploitation rolling-stock that would ensure an impact descent on path and enhancement of non-bladed path velocities at decrease of disturbance of the rail track. In track plant area, the improvement of the assessment norms of path in relation to its traffics volume and motion velocities of the main types addressing on it rolling stock. Suchlike assessment of the path condition according to its strength and impact of rolling stock gives the possibility to determine the maximum rational travel speeds for each type of rolling stock.