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Information × Registration Number 0211U006782, 0110U007135 , R & D reports Title Modernization of freight cars for improving of their motion safety and operational performance and of working life renewal popup.stage_title Head Ushkalov Victor Fedorovych, Registration Date 29-03-2011 Organization Institute of Technical Mechanics of NASU and NSAU popup.description2 The research subject - tank cars with the modernized trucks. The work goal - conducting of researches and development of recommendations on the choice of elements of truck modernization for the use in tank cars to increase the safety of their motion, operational qualities and resource. Methods of research - methods of mathematical modeling, numerical integration, statistical dynamics. Calculating models and differential equations of three-dimensional vibrations of the rail vehicle - track system as well as of motion of a non-uniform freight train with tank cars are developed considering special structural features of tank cars and different side bearings for studying the train dynamics under transient motion conditions. Forced three-dimensional oscillations of tank cars with standard and modernized trucks are studied when they move on straight and curved tracks with random irregularities. The effects of allowing for fluidity in the tank and different levels of tank ullage on dynamic indices of these vehicles are estimated. The influence of different models of constant-contact side bearings on indices of dynamic performance and wheel wear of loaded and empty tank cars with the truck centers of 7.8 m is analyzed. Recommendations for choosing specified models of side bearings for such tanks at complex modernization of their trucks are made. Applications: railway freight rolling stock. Product Description popup.authors Ковтун О. М. Лапіна Л. Г. Малий В. В. Малишева І. Ю. Маркова О. М. Мащенко І. О. Мокрій Т. Ф. Науменко Н. Ю. Пасічник С. С. Под'єльніков І. В. Рухлов І. В. Серебряний І. О. Ушкалов В. Ф. Хижа І. Ю. Южакова О. Л. popup.nrat_date 2020-04-02 Close