Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption
In order to study the effects of different configurations of force-displacement relationship of the additional energy absorbing device on the absorption of kinetic energy during a collision, a multi-rigid body dynamics model of two identical eight-car trains was established, calculated and analyzed....
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2019-09-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2019.05.007 |
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| _version_ | 1850142825872621568 |
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| author | Bin LIU Shoune XIAO Bing YANG Tao ZHU Guangwu YANG |
| author_facet | Bin LIU Shoune XIAO Bing YANG Tao ZHU Guangwu YANG |
| author_sort | Bin LIU |
| collection | DOAJ |
| description | In order to study the effects of different configurations of force-displacement relationship of the additional energy absorbing device on the absorption of kinetic energy during a collision, a multi-rigid body dynamics model of two identical eight-car trains was established, calculated and analyzed. The results shows that under the premise of ensuring the same designed capacity, the design of force-displacement curve as multi-step with constant gradient or one which has a certain positive slope can make the device absorb more impact kinetic energy than a steady force-displacement curve whose force is a constant during a collision. Besides, the larger the slope of the force-displacement curve, the more energy is absorbed. In addition, the force-displacement relationship of the three-section metal turning tube under axial compression was studied and is found that with certain design parameters, the force-displacement relationship curve is almost in form of two equal gradients. At the same time, the tube's stroke effciency is up to 76.5%, which is more than 95% of the theoretical stroke efficiency (80%), proving that the three-section metal turning tube has a good deformability and energy absorption capacity. |
| format | Article |
| id | doaj-art-4d6e707fe6de481ab3b08e2183b1920b |
| institution | OA Journals |
| issn | 1000-128X |
| language | zho |
| publishDate | 2019-09-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-4d6e707fe6de481ab3b08e2183b1920b2025-08-20T02:28:55ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2019-09-012933,3920924980Study on Impacts of Energy Absorbing Devices on Train Collision Energy AbsorptionBin LIUShoune XIAOBing YANGTao ZHUGuangwu YANGIn order to study the effects of different configurations of force-displacement relationship of the additional energy absorbing device on the absorption of kinetic energy during a collision, a multi-rigid body dynamics model of two identical eight-car trains was established, calculated and analyzed. The results shows that under the premise of ensuring the same designed capacity, the design of force-displacement curve as multi-step with constant gradient or one which has a certain positive slope can make the device absorb more impact kinetic energy than a steady force-displacement curve whose force is a constant during a collision. Besides, the larger the slope of the force-displacement curve, the more energy is absorbed. In addition, the force-displacement relationship of the three-section metal turning tube under axial compression was studied and is found that with certain design parameters, the force-displacement relationship curve is almost in form of two equal gradients. At the same time, the tube's stroke effciency is up to 76.5%, which is more than 95% of the theoretical stroke efficiency (80%), proving that the three-section metal turning tube has a good deformability and energy absorption capacity.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2019.05.007train collisionenergy absorption deviceforce-displacement relationshipenergy absorptionthree-section metal turning tubeFEMsimulation |
| spellingShingle | Bin LIU Shoune XIAO Bing YANG Tao ZHU Guangwu YANG Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption 机车电传动 train collision energy absorption device force-displacement relationship energy absorption three-section metal turning tube FEM simulation |
| title | Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption |
| title_full | Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption |
| title_fullStr | Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption |
| title_full_unstemmed | Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption |
| title_short | Study on Impacts of Energy Absorbing Devices on Train Collision Energy Absorption |
| title_sort | study on impacts of energy absorbing devices on train collision energy absorption |
| topic | train collision energy absorption device force-displacement relationship energy absorption three-section metal turning tube FEM simulation |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2019.05.007 |
| work_keys_str_mv | AT binliu studyonimpactsofenergyabsorbingdevicesontraincollisionenergyabsorption AT shounexiao studyonimpactsofenergyabsorbingdevicesontraincollisionenergyabsorption AT bingyang studyonimpactsofenergyabsorbingdevicesontraincollisionenergyabsorption AT taozhu studyonimpactsofenergyabsorbingdevicesontraincollisionenergyabsorption AT guangwuyang studyonimpactsofenergyabsorbingdevicesontraincollisionenergyabsorption |