Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles
In order to improve the energy-absorbing performance of the main energy-absorbing structure at the cab end of the urban rail vehicles, the underframe end sill and the sheet thickness of the main energy-absorbing structure were optimized by means of simulation analysis. Considering the influence of o...
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| Format: | Article |
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Editorial Department of Electric Drive for Locomotives
2020-01-01
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| Series: | 机车电传动 |
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| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.01.121 |
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| _version_ | 1849729433737363456 |
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| author | Li LIU Zhe XU Feng GAO |
| author_facet | Li LIU Zhe XU Feng GAO |
| author_sort | Li LIU |
| collection | DOAJ |
| description | In order to improve the energy-absorbing performance of the main energy-absorbing structure at the cab end of the urban rail vehicles, the underframe end sill and the sheet thickness of the main energy-absorbing structure were optimized by means of simulation analysis. Considering the influence of optimal location on energy absorption, the collision model of cab car versus cab car modal of one urban rail vehicle with a relative velocity of 25 km/h was developed. The maximum impact velocity without crushing and the energy absorption before and after structural optimization were obtained by collision analysis and calculation. The results showed that increasing the stiffness of the underframe end sill and reducing the sheet thickness of the main energy-absorbing structure can satisfy the orderly controllable deformation law of the cab end energy-absorbing system, as well as the energy-absorbing performance can be improved, which provided a theoretical reference for the optimization design of the main energy-absorbing structure. |
| format | Article |
| id | doaj-art-e965214b3bea41c7bcfb8b5f88e4e6cc |
| institution | DOAJ |
| issn | 1000-128X |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-e965214b3bea41c7bcfb8b5f88e4e6cc2025-08-20T03:09:14ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2020-01-0113914320920763Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail VehiclesLi LIUZhe XUFeng GAOIn order to improve the energy-absorbing performance of the main energy-absorbing structure at the cab end of the urban rail vehicles, the underframe end sill and the sheet thickness of the main energy-absorbing structure were optimized by means of simulation analysis. Considering the influence of optimal location on energy absorption, the collision model of cab car versus cab car modal of one urban rail vehicle with a relative velocity of 25 km/h was developed. The maximum impact velocity without crushing and the energy absorption before and after structural optimization were obtained by collision analysis and calculation. The results showed that increasing the stiffness of the underframe end sill and reducing the sheet thickness of the main energy-absorbing structure can satisfy the orderly controllable deformation law of the cab end energy-absorbing system, as well as the energy-absorbing performance can be improved, which provided a theoretical reference for the optimization design of the main energy-absorbing structure.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.01.121urban rail vehiclecrashenergy-absorbing structureenergy-absorbing performancesimulation analysisfinite element model |
| spellingShingle | Li LIU Zhe XU Feng GAO Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles 机车电传动 urban rail vehicle crash energy-absorbing structure energy-absorbing performance simulation analysis finite element model |
| title | Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles |
| title_full | Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles |
| title_fullStr | Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles |
| title_full_unstemmed | Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles |
| title_short | Optimization Design of Main Energy-absorbing Structure Fixed on the Cab End of Urban Rail Vehicles |
| title_sort | optimization design of main energy absorbing structure fixed on the cab end of urban rail vehicles |
| topic | urban rail vehicle crash energy-absorbing structure energy-absorbing performance simulation analysis finite element model |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.01.121 |
| work_keys_str_mv | AT liliu optimizationdesignofmainenergyabsorbingstructurefixedonthecabendofurbanrailvehicles AT zhexu optimizationdesignofmainenergyabsorbingstructurefixedonthecabendofurbanrailvehicles AT fenggao optimizationdesignofmainenergyabsorbingstructurefixedonthecabendofurbanrailvehicles |