Experimental research of characteristics of improved type of combined tube energy absorber
Апстракт
Crash energy absorber represents one of the main and necessary elements of body structure of modern railway vehicles. Intensive research in the field of passive safety produced more different types of collision energy absorbers using different shapes of deformations to absorb as much kinetic collision energy as possible. Different combinations of the shape of deformations lead to compact dimensions of absorber. Subject of this paper is combined energy absorber which works on the principle of shrinking and splitting the seamless tube at the same time, using pecial
tools. Using shrinking-splitting process energy absorption occurs by elastic-plastic deformations of the tube and friction between the tube and the cone bush, respectively friction between the tube and the splitting tool. Energy absorption starts in the tube which is compressed into cone bush. After exactly defined stroke in the process of energy absorption by shrinking the seamless tube, the simultaneous process of splitting... of the tube starts, so tube deforms in parallel shrinking-splitting mode during the rest of the stroke. This type of combined process gives gradually increase of the force without undesirable peaks which characterizes second phase of deformation of shrinkingfolding combined absorber. Experimental research was realized via quasi-static tests in the laboratory conditions. During tests, reaction force and stroke were measured. Results of the
investigations of combined shrinking-splitting absorber and shrinking-folding absorber were compared.
Кључне речи:
Crash absorber / Passive safety / Shrinking / Splitting / Experimental researchesИзвор:
XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings, 2014, 01-04Издавач:
- University of Niš, Faculty of Mechanical Engineering
Финансирање / пројекти:
- Научно-технолошка подршка унапређењу безбедности специјалних друмских и шинских возила (RS-MESTD-Technological Development (TD or TR)-35045)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Tanasković, Jovan AU - Milković, Dragan AU - Lučanin, Vojkan AU - Mišković, Žarko PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5718 AB - Crash energy absorber represents one of the main and necessary elements of body structure of modern railway vehicles. Intensive research in the field of passive safety produced more different types of collision energy absorbers using different shapes of deformations to absorb as much kinetic collision energy as possible. Different combinations of the shape of deformations lead to compact dimensions of absorber. Subject of this paper is combined energy absorber which works on the principle of shrinking and splitting the seamless tube at the same time, using pecial tools. Using shrinking-splitting process energy absorption occurs by elastic-plastic deformations of the tube and friction between the tube and the cone bush, respectively friction between the tube and the splitting tool. Energy absorption starts in the tube which is compressed into cone bush. After exactly defined stroke in the process of energy absorption by shrinking the seamless tube, the simultaneous process of splitting of the tube starts, so tube deforms in parallel shrinking-splitting mode during the rest of the stroke. This type of combined process gives gradually increase of the force without undesirable peaks which characterizes second phase of deformation of shrinkingfolding combined absorber. Experimental research was realized via quasi-static tests in the laboratory conditions. During tests, reaction force and stroke were measured. Results of the investigations of combined shrinking-splitting absorber and shrinking-folding absorber were compared. PB - University of Niš, Faculty of Mechanical Engineering C3 - XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings T1 - Experimental research of characteristics of improved type of combined tube energy absorber EP - 04 SP - 01 UR - https://hdl.handle.net/21.15107/rcub_machinery_5718 ER -
@conference{ author = "Tanasković, Jovan and Milković, Dragan and Lučanin, Vojkan and Mišković, Žarko", year = "2014", abstract = "Crash energy absorber represents one of the main and necessary elements of body structure of modern railway vehicles. Intensive research in the field of passive safety produced more different types of collision energy absorbers using different shapes of deformations to absorb as much kinetic collision energy as possible. Different combinations of the shape of deformations lead to compact dimensions of absorber. Subject of this paper is combined energy absorber which works on the principle of shrinking and splitting the seamless tube at the same time, using pecial tools. Using shrinking-splitting process energy absorption occurs by elastic-plastic deformations of the tube and friction between the tube and the cone bush, respectively friction between the tube and the splitting tool. Energy absorption starts in the tube which is compressed into cone bush. After exactly defined stroke in the process of energy absorption by shrinking the seamless tube, the simultaneous process of splitting of the tube starts, so tube deforms in parallel shrinking-splitting mode during the rest of the stroke. This type of combined process gives gradually increase of the force without undesirable peaks which characterizes second phase of deformation of shrinkingfolding combined absorber. Experimental research was realized via quasi-static tests in the laboratory conditions. During tests, reaction force and stroke were measured. Results of the investigations of combined shrinking-splitting absorber and shrinking-folding absorber were compared.", publisher = "University of Niš, Faculty of Mechanical Engineering", journal = "XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings", title = "Experimental research of characteristics of improved type of combined tube energy absorber", pages = "04-01", url = "https://hdl.handle.net/21.15107/rcub_machinery_5718" }
Tanasković, J., Milković, D., Lučanin, V.,& Mišković, Ž.. (2014). Experimental research of characteristics of improved type of combined tube energy absorber. in XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings University of Niš, Faculty of Mechanical Engineering., 01-04. https://hdl.handle.net/21.15107/rcub_machinery_5718
Tanasković J, Milković D, Lučanin V, Mišković Ž. Experimental research of characteristics of improved type of combined tube energy absorber. in XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings. 2014;:01-04. https://hdl.handle.net/21.15107/rcub_machinery_5718 .
Tanasković, Jovan, Milković, Dragan, Lučanin, Vojkan, Mišković, Žarko, "Experimental research of characteristics of improved type of combined tube energy absorber" in XVI Scinetific-expert conference on railways RAILCON 2014, Proceedings (2014):01-04, https://hdl.handle.net/21.15107/rcub_machinery_5718 .