Experimental and numerical determination of the freight wagon buffers characteristics
Апстракт
Draw-buff gear plays a significant role in the transmission and damping of longitudinal forces generated during accelerating and braking of trains. The role of the buffers is to protect the railway vehicles bearing structure, cargo and passengers from excessive longitudinal impacts. Especially when shunting freight wagons. For that reason, they have built-in elastic-damping elements that absorb shocks and partially convert kinetic energy into heat. This paper analyzes buffers with rubber-metal springs, which are the most often used in the freight cars nowadays. The static and dynamic force-stroke characteristics obtained by measurements on hydraulic press and during buffing impact tests are presented. These results are then compared with calculations using FEM analyses. The analyses included checking of the buffers ability to absorb a sufficient amount
of energy that can be generated during wagon normal operation and in the case of exceptional shunting impacts.
Кључне речи:
buffers / force-stroke characteristics / measurementsИзвор:
Proceedings : XX Scientific-expert conference on railways RAILCON `22, 2022, 13-16Издавач:
- Niš : Faculty of Mechanical Engineering
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Milković, Dragan AU - Kostić, Aleksandra AU - Radulović, Saša AU - Simić, Goran AU - Lučanin, Vojkan PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4208 AB - Draw-buff gear plays a significant role in the transmission and damping of longitudinal forces generated during accelerating and braking of trains. The role of the buffers is to protect the railway vehicles bearing structure, cargo and passengers from excessive longitudinal impacts. Especially when shunting freight wagons. For that reason, they have built-in elastic-damping elements that absorb shocks and partially convert kinetic energy into heat. This paper analyzes buffers with rubber-metal springs, which are the most often used in the freight cars nowadays. The static and dynamic force-stroke characteristics obtained by measurements on hydraulic press and during buffing impact tests are presented. These results are then compared with calculations using FEM analyses. The analyses included checking of the buffers ability to absorb a sufficient amount of energy that can be generated during wagon normal operation and in the case of exceptional shunting impacts. PB - Niš : Faculty of Mechanical Engineering C3 - Proceedings : XX Scientific-expert conference on railways RAILCON `22 T1 - Experimental and numerical determination of the freight wagon buffers characteristics EP - 16 SP - 13 UR - https://hdl.handle.net/21.15107/rcub_machinery_4208 ER -
@conference{ author = "Milković, Dragan and Kostić, Aleksandra and Radulović, Saša and Simić, Goran and Lučanin, Vojkan", year = "2022", abstract = "Draw-buff gear plays a significant role in the transmission and damping of longitudinal forces generated during accelerating and braking of trains. The role of the buffers is to protect the railway vehicles bearing structure, cargo and passengers from excessive longitudinal impacts. Especially when shunting freight wagons. For that reason, they have built-in elastic-damping elements that absorb shocks and partially convert kinetic energy into heat. This paper analyzes buffers with rubber-metal springs, which are the most often used in the freight cars nowadays. The static and dynamic force-stroke characteristics obtained by measurements on hydraulic press and during buffing impact tests are presented. These results are then compared with calculations using FEM analyses. The analyses included checking of the buffers ability to absorb a sufficient amount of energy that can be generated during wagon normal operation and in the case of exceptional shunting impacts.", publisher = "Niš : Faculty of Mechanical Engineering", journal = "Proceedings : XX Scientific-expert conference on railways RAILCON `22", title = "Experimental and numerical determination of the freight wagon buffers characteristics", pages = "16-13", url = "https://hdl.handle.net/21.15107/rcub_machinery_4208" }
Milković, D., Kostić, A., Radulović, S., Simić, G.,& Lučanin, V.. (2022). Experimental and numerical determination of the freight wagon buffers characteristics. in Proceedings : XX Scientific-expert conference on railways RAILCON `22 Niš : Faculty of Mechanical Engineering., 13-16. https://hdl.handle.net/21.15107/rcub_machinery_4208
Milković D, Kostić A, Radulović S, Simić G, Lučanin V. Experimental and numerical determination of the freight wagon buffers characteristics. in Proceedings : XX Scientific-expert conference on railways RAILCON `22. 2022;:13-16. https://hdl.handle.net/21.15107/rcub_machinery_4208 .
Milković, Dragan, Kostić, Aleksandra, Radulović, Saša, Simić, Goran, Lučanin, Vojkan, "Experimental and numerical determination of the freight wagon buffers characteristics" in Proceedings : XX Scientific-expert conference on railways RAILCON `22 (2022):13-16, https://hdl.handle.net/21.15107/rcub_machinery_4208 .