Search academic texts

Information × Registration Number 0202U000424, 0199U000330 , R & D reports Title Analysis of influense of the profiles surfaces driving of wheel and roil on the dynamic of wheel pair with stabilized elastic elements in the space assumtion. popup.stage_title Head Lobas Leonid Grygorovych, Registration Date 06-02-2002 Organization The Kyiv University of Transport Ekonomy & Technologies popup.description2 The analytical methodics of comparative analysis of types of railway wheels profiles is elaborated. The two new types of profiles is proposed: as tractrise and exponent. The influence of rail profile geometry on position of contact points of lateral wheels is investigated. The mathematical securing for describing of rail profile in packet Maple V is elaborated. The problem of contact zone finding between a wheel and rail are reduced to the problem of guaranted domain contact evaluation on a base of quadratic Lyapunov"s function. The quasislip forces are modelling as a nonlinear functions from relative wheel slip. The analytical dependence of motion critical velocity from effective conicality of profile is obtained. It is that the additional zones of contact between the rail and rim flange may be appeared (occurrence of nonholding constraint) for motion with supercritical velocities. Product Description popup.authors popup.nrat_date 2020-04-02 Close