PREDICTION OF DYNAMIC PROPERTIES OF RAIL UNDERFRAME AS CONTINUOUS-DISCRETE SYSTEM

There the purpose is to develop the technique of theoretical prediction of dynamic properties of rolling stock for the estimation of efficiency of measures, which were directed for the decrease of rate of low-frequency bending vibrations of bodies. The mathematical simulator of generalized rail underframe has been developed. The conditions of asymptotic and unlimited stability of parametric bending vibrations of body have been formulated. The new version of numerical method for the computation of frequency characteristics of continuous members of system has been developed. The recommendations for the choice of up-dating variant of motor van of high-speed electric train, for the choice of scheme of underframe part of outlook electric locomotive have been presented. The measures for the improvement of ride characteristics of cryogenic section of experimental gas Diesel locomotive have been developed. The devices for the control over the characteristics of dynamic systems have been developed and have been patented. The developed recommendations have been introduced. The prediction technique is used for the choice of rational characteristics of mechanical part. The saving of electric energy for the traction is provided 3,9 - 5,2% in number during the passanger transit by the up-dated motor-van rolling stock. The application fields are the railway transport, the building of locomotive and of vansAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio