Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs)
This study proposes a theoretical method to estimate the impact force of Derailment Containment Provisions (DCPs) for the prevention of secondary collisions in the event of a train derailment. By comparing the impact forces estimated using the commonly used Olson model and dynamic simulations, the s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/6/3899 |
| _version_ | 1797613617970937856 |
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| author | In-Ho Song Jeong-Seo Koo Jae-Seok Shim Hyun-Ung Bae Nam-Hyoung Lim |
| author_facet | In-Ho Song Jeong-Seo Koo Jae-Seok Shim Hyun-Ung Bae Nam-Hyoung Lim |
| author_sort | In-Ho Song |
| collection | DOAJ |
| description | This study proposes a theoretical method to estimate the impact force of Derailment Containment Provisions (DCPs) for the prevention of secondary collisions in the event of a train derailment. By comparing the impact forces estimated using the commonly used Olson model and dynamic simulations, the study identifies significant differences in average and maximum impact forces. The study shows that these differences arise due to the mass effects of vehicle bodies transmitted to the DCP during a collision. To address this issue, the impact force of the Olson model was modified by considering the stiffness of suspensions between masses as a simplified spring–mass model. The modified impact force was verified through impact simulations using the KTX model on curved tracks with various radii. The results show that the modified Olson model provides a reasonable estimate of the impact force, with differences of less than 8% observed under all simulation conditions. This study provides a valuable contribution to the design and analysis methodology for DCPs, improving their effectiveness in preventing secondary collisions and enhancing railway safety. |
| first_indexed | 2024-03-11T06:57:17Z |
| format | Article |
| id | doaj.art-37421b04d1844bf59656b9f59f716099 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T06:57:17Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-37421b04d1844bf59656b9f59f7160992023-11-17T09:28:32ZengMDPI AGApplied Sciences2076-34172023-03-01136389910.3390/app13063899Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs)In-Ho Song0Jeong-Seo Koo1Jae-Seok Shim2Hyun-Ung Bae3Nam-Hyoung Lim4Department of Railway Safety Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Railway Safety Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaComplex Research Center for Materials & Components of Railway, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaR&D Laboratory, Road Kinematics Co., Ltd., Cheonan 31094, Republic of KoreaDepartment of Civil Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaThis study proposes a theoretical method to estimate the impact force of Derailment Containment Provisions (DCPs) for the prevention of secondary collisions in the event of a train derailment. By comparing the impact forces estimated using the commonly used Olson model and dynamic simulations, the study identifies significant differences in average and maximum impact forces. The study shows that these differences arise due to the mass effects of vehicle bodies transmitted to the DCP during a collision. To address this issue, the impact force of the Olson model was modified by considering the stiffness of suspensions between masses as a simplified spring–mass model. The modified impact force was verified through impact simulations using the KTX model on curved tracks with various radii. The results show that the modified Olson model provides a reasonable estimate of the impact force, with differences of less than 8% observed under all simulation conditions. This study provides a valuable contribution to the design and analysis methodology for DCPs, improving their effectiveness in preventing secondary collisions and enhancing railway safety.https://www.mdpi.com/2076-3417/13/6/3899impact forcederailment containment provisions (DCPs)derailmentcrashimpact simulation |
| spellingShingle | In-Ho Song Jeong-Seo Koo Jae-Seok Shim Hyun-Ung Bae Nam-Hyoung Lim Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) Applied Sciences impact force derailment containment provisions (DCPs) derailment crash impact simulation |
| title | Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) |
| title_full | Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) |
| title_fullStr | Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) |
| title_full_unstemmed | Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) |
| title_short | Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs) |
| title_sort | theoretical prediction of impact force acting on derailment containment provisions dcps |
| topic | impact force derailment containment provisions (DCPs) derailment crash impact simulation |
| url | https://www.mdpi.com/2076-3417/13/6/3899 |
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