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Information × Registration Number 0300U002354, 0199U001194 , R & D reports Title Study of dynamics and stability of the moving mechanical systems and their contact interaction with deformable track structure under random disturbances popup.stage_title Розробка уточнених розрахункових схем i математичних моделей для дослiдження коливань механiчних систем та процесiв єх кон- тактноє взаґмодiє Head Ushkalov V.F., Registration Date 29-08-2000 Organization Institute of Technical Mechanics of the National Academy of Sciences and National Space Agency of Ukraine popup.description2 Vibrations of freight cars equipped with different-profile wheel pairs, dry friction elements in spring sets and underframe foot units, random disturbances are investigated. The objective of the study was the development of more exactly numerical schemes and mathematical models for studying a dynamic efficiency of railway underframes and processes of whe- el/rail contact.Using the methods for statistic dynamics, mathematic simu- lation, the algorithm for solving a geometric three-dimensional problem on wheel/rail contact is up-dated, their dynamic interaction model is defi- ned more exactly, the effect of contact stiffen and dissipative parame- meters of truck elements in between and the body to trucks on dynamic stability of a freight car is evaluated, a mathematical model for the freight car vibrations with consideration of longitudinal pressing for- ces effected by train's adjacent freight car is constructed. New results on modeling processes of creeping the flange onto rail head and on stu- dying safe motion of the car according to conditions of wheeling the flange of the rail as welas on choosing the new profiles to reduce the wear of their heads without degradation of car's dynamic efficiency. The developed the schemes of estimations, mathematical models and algorithms have found application for solving the practical problems in the frame- work of contracts. Field of applications - railway transport. Product Description popup.authors popup.nrat_date 2020-04-03 Close