Abstract
The article deals with a new draft gear concept proposed by the authors to reduce the dynamic load of wagons in operational modes. The peculiarity of the concept is transformation of the kinetic impact energy into the work of viscous resistance forces when the viscous fluid passes through the throttle openings of the piston. The concept can be introduced for the wagons, in which centre sills of the frames are of closed sections. The mathematic modelling was conducted for the dynamic load of articulated wagons with consideration of the draft gear concept. It was established that the use of the draft gear concept can lower the dynamic load of wagons by about 10 %. The research will encourage engineers to design modern structures of rolling stock units and increase their operational efficiency.
Highlights
The competitive environment in the transportation market requires introduction of innovative engineering solutions to keep the leading position for the railway industry
The authors do not set the task to determine the dynamic load of the carrying structure of the wagon
- to propose techniques for lower dy11namic load on articulated wagons in operation; - to conduct the mathematic modelling of dynamic loads on the carrying structure of an articulated wagon of circular pipes
Summary
The competitive environment in the transportation market requires introduction of innovative engineering solutions to keep the leading position for the railway industry. Higher operational efficiency of the railway transport can be achieved by introduction of articulated wagons. The study does not consider possible measures to decrease the dynamic load of wagons. The measures for decreasing the dynamic load of the carrying structure of wagons under shunting impacts are not considered. Determination of the dynamic load of wagons and techniques for its decrease under shunting impacts are not considered in the studies. DYNAMIC LOAD OF THE CARRYING STRUCTURE OF AN ARTICULATED WAGON WITH NEW DRAFT GEAR CONCEPTS. The authors do not set the task to determine the dynamic load of the carrying structure of the wagon. The objective of the study is determination of dynamic loads on the carrying structure of a circular-pipe wagon with consideration of the new draft gear concept instead of the automatic coupler CA-3. - to propose techniques for lower dy11namic load on articulated wagons in operation; - to conduct the mathematic modelling of dynamic loads on the carrying structure of an articulated wagon of circular pipes
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