Impact of density of polyurethane foam on absorption power of energy absorber
2018
Conference object (Published version)
,
Innovation Center of Faculty of Mechanical Engineering
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Safety of railway vehicles is one of the most importance steps in developing and design of them. Passive safety elements have a role to reduce consequences of collision to a minimal by absorbing collision kinetic energy. Applying a proper standard and adequate design of railway vehicle structure has a direct impact on safety of railway traffic. One of many ways for collision energy absorption is the tube energy absorber which works on the principle of shrinking the foam filled tube passing through special cone bushing. Fill made from high density polyurethane has a role to increase deformation resistance during elastic-plastic deformation of the tube. Seamless tube was made from low carbon steel while the cone bushing was made from quench and tempered carbon steel. This type of absorber is designed to install in a line (behind) with standard buffer. Using this type of absorber energy absorption occurs by elastic-plastic deformation of the tube, friction between the tube and cone bushin...g and pressing of the foam. With the aim to show influence of the density of the foam on absorption power, experimental investigations of tubes filled by polyurethane foam of different density were done. Results of experimental investigations show that increase of density gives higher deformation resistance as well as higher absorption power. Further investigations will be directed to improve of absorption characteristics by chose a most acceptable density of foam.
Keywords:
Railway Safety / Passive Safety / Foam Filled Seamless Tube / Experimental Investigations / Polyurethane FoamSource:
International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract, 2018, 31-31Publisher:
- Innovation Center of Faculty of Mechanical Engineering
Funding / projects:
- Scientific-technological support to enhancing the safety of special road and rail vehicles (RS-MESTD-Technological Development (TD or TR)-35045)
- Sustainability and improvement of mechanical systems in energetic, material handling and conveying by using forensic engineering, environmental and robust design (RS-MESTD-Technological Development (TD or TR)-35006)
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Mašinski fakultetTY - CONF AU - Tanasković, Jovan AU - Mitrovic, Aleksandra AU - Franklin, Francis J. AU - Milković, Dragan PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5973 AB - Safety of railway vehicles is one of the most importance steps in developing and design of them. Passive safety elements have a role to reduce consequences of collision to a minimal by absorbing collision kinetic energy. Applying a proper standard and adequate design of railway vehicle structure has a direct impact on safety of railway traffic. One of many ways for collision energy absorption is the tube energy absorber which works on the principle of shrinking the foam filled tube passing through special cone bushing. Fill made from high density polyurethane has a role to increase deformation resistance during elastic-plastic deformation of the tube. Seamless tube was made from low carbon steel while the cone bushing was made from quench and tempered carbon steel. This type of absorber is designed to install in a line (behind) with standard buffer. Using this type of absorber energy absorption occurs by elastic-plastic deformation of the tube, friction between the tube and cone bushing and pressing of the foam. With the aim to show influence of the density of the foam on absorption power, experimental investigations of tubes filled by polyurethane foam of different density were done. Results of experimental investigations show that increase of density gives higher deformation resistance as well as higher absorption power. Further investigations will be directed to improve of absorption characteristics by chose a most acceptable density of foam. PB - Innovation Center of Faculty of Mechanical Engineering C3 - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract T1 - Impact of density of polyurethane foam on absorption power of energy absorber EP - 31 SP - 31 UR - https://hdl.handle.net/21.15107/rcub_machinery_5973 ER -
@conference{ author = "Tanasković, Jovan and Mitrovic, Aleksandra and Franklin, Francis J. and Milković, Dragan", year = "2018", abstract = "Safety of railway vehicles is one of the most importance steps in developing and design of them. Passive safety elements have a role to reduce consequences of collision to a minimal by absorbing collision kinetic energy. Applying a proper standard and adequate design of railway vehicle structure has a direct impact on safety of railway traffic. One of many ways for collision energy absorption is the tube energy absorber which works on the principle of shrinking the foam filled tube passing through special cone bushing. Fill made from high density polyurethane has a role to increase deformation resistance during elastic-plastic deformation of the tube. Seamless tube was made from low carbon steel while the cone bushing was made from quench and tempered carbon steel. This type of absorber is designed to install in a line (behind) with standard buffer. Using this type of absorber energy absorption occurs by elastic-plastic deformation of the tube, friction between the tube and cone bushing and pressing of the foam. With the aim to show influence of the density of the foam on absorption power, experimental investigations of tubes filled by polyurethane foam of different density were done. Results of experimental investigations show that increase of density gives higher deformation resistance as well as higher absorption power. Further investigations will be directed to improve of absorption characteristics by chose a most acceptable density of foam.", publisher = "Innovation Center of Faculty of Mechanical Engineering", journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract", title = "Impact of density of polyurethane foam on absorption power of energy absorber", pages = "31-31", url = "https://hdl.handle.net/21.15107/rcub_machinery_5973" }
Tanasković, J., Mitrovic, A., Franklin, F. J.,& Milković, D.. (2018). Impact of density of polyurethane foam on absorption power of energy absorber. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract Innovation Center of Faculty of Mechanical Engineering., 31-31. https://hdl.handle.net/21.15107/rcub_machinery_5973
Tanasković J, Mitrovic A, Franklin FJ, Milković D. Impact of density of polyurethane foam on absorption power of energy absorber. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract. 2018;:31-31. https://hdl.handle.net/21.15107/rcub_machinery_5973 .
Tanasković, Jovan, Mitrovic, Aleksandra, Franklin, Francis J., Milković, Dragan, "Impact of density of polyurethane foam on absorption power of energy absorber" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract (2018):31-31, https://hdl.handle.net/21.15107/rcub_machinery_5973 .