Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners
［Objective］ Research is conducted on the influence and significance of the excitation frequency of the dynamic stabilization device and the mechanical characteristics of rail fasteners on the operation effect of the dynamic track stabilizer in order to provide some reference for the operation of the...
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| Format: | Article |
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Urban Mass Transit Magazine Press
2025-01-01
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| Series: | Chengshi guidao jiaotong yanjiu |
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| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.01.052.html |
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| author | CHEN Taimao WANG Lihua HUANG Hongyi WANG Jiongli ZHAO Zemin JIANG Wei |
| author_facet | CHEN Taimao WANG Lihua HUANG Hongyi WANG Jiongli ZHAO Zemin JIANG Wei |
| author_sort | CHEN Taimao |
| collection | DOAJ |
| description | ［Objective］ Research is conducted on the influence and significance of the excitation frequency of the dynamic stabilization device and the mechanical characteristics of rail fasteners on the operation effect of the dynamic track stabilizer in order to provide some reference for the operation of the dynamic stabilizer. ［Method］ Based on the multi-body system dynamics theory, a dynamic stabilization device-track dynamics model considering the mechanical characteristics of rail fasteners is established. A rigid-flexible coupling dynamics simulation model of the dynamic stabilization device-ballast bed is established by using the finite element method. With the excitation frequency of the dynamic stabilization device, the lateral stiffness and the lateral damping of the fastener as research factors, and the lateral acceleration response of the sleeper as the evaluation index of stable operation effect, a numerical simulation analysis is carried out to obtain the significance of the influencing factors for the dynamic stabilization operation effect. ［Result & Conclusion］ With the increase of the excitation force amplitude of the dynamic stabilization device, both the lateral displacement and the acceleration of the sleeper increase monotonically. When the excitation frequency gradually increases, the lateral displacement of the sleeper decreases monotonically, while the lateral acceleration first decreases and then increases. The obtained optimal excitation frequency range of the dynamic stabilization device is from 30 to 36 Hz. Increasing the lateral stiffness of the rail fastener leads to an increase of the sleeper lateral acceleration. Increasing the lateral damping of the rail fastener will reduce the sleeper lateral acceleration. Based on the response surface method, three factors influencing the sleeper lateral acceleration are excitation frequency, fastener lateral stiffness and fastener lateral damping in order of significance. |
| format | Article |
| id | doaj-art-2588f06153324babbb501048c6d43d5a |
| institution | Kabale University |
| issn | 1007-869X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-2588f06153324babbb501048c6d43d5a2025-01-13T08:04:42ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2025-01-0128128128610.16037/j.1007-869x.2025.01.052Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of FastenersCHEN Taimao0WANG Lihua1HUANG Hongyi2WANG Jiongli3ZHAO Zemin4JIANG Wei5Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, ChinaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, ChinaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, ChinaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, ChinaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, ChinaFaculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, 650500, Kunming, China［Objective］ Research is conducted on the influence and significance of the excitation frequency of the dynamic stabilization device and the mechanical characteristics of rail fasteners on the operation effect of the dynamic track stabilizer in order to provide some reference for the operation of the dynamic stabilizer. ［Method］ Based on the multi-body system dynamics theory, a dynamic stabilization device-track dynamics model considering the mechanical characteristics of rail fasteners is established. A rigid-flexible coupling dynamics simulation model of the dynamic stabilization device-ballast bed is established by using the finite element method. With the excitation frequency of the dynamic stabilization device, the lateral stiffness and the lateral damping of the fastener as research factors, and the lateral acceleration response of the sleeper as the evaluation index of stable operation effect, a numerical simulation analysis is carried out to obtain the significance of the influencing factors for the dynamic stabilization operation effect. ［Result & Conclusion］ With the increase of the excitation force amplitude of the dynamic stabilization device, both the lateral displacement and the acceleration of the sleeper increase monotonically. When the excitation frequency gradually increases, the lateral displacement of the sleeper decreases monotonically, while the lateral acceleration first decreases and then increases. The obtained optimal excitation frequency range of the dynamic stabilization device is from 30 to 36 Hz. Increasing the lateral stiffness of the rail fastener leads to an increase of the sleeper lateral acceleration. Increasing the lateral damping of the rail fastener will reduce the sleeper lateral acceleration. Based on the response surface method, three factors influencing the sleeper lateral acceleration are excitation frequency, fastener lateral stiffness and fastener lateral damping in order of significance.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.01.052.htmldynamic stabilizerdynamic stabilization deviceexcitation frequencylateral stiffness of rail fastenerlateral damping of rail fastenerresponse surface analysis method |
| spellingShingle | CHEN Taimao WANG Lihua HUANG Hongyi WANG Jiongli ZHAO Zemin JIANG Wei Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners Chengshi guidao jiaotong yanjiu dynamic stabilizer dynamic stabilization device excitation frequency lateral stiffness of rail fastener lateral damping of rail fastener response surface analysis method |
| title | Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners |
| title_full | Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners |
| title_fullStr | Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners |
| title_full_unstemmed | Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners |
| title_short | Operation Effect Analysis of Dynamic Stabilizer Considering the Characteristics of Fasteners |
| title_sort | operation effect analysis of dynamic stabilizer considering the characteristics of fasteners |
| topic | dynamic stabilizer dynamic stabilization device excitation frequency lateral stiffness of rail fastener lateral damping of rail fastener response surface analysis method |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.01.052.html |
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