Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method
［Objective］During train operation, there is random vibration in the wheelset, which causes position changes of the wheel-rail contact point, thereby affecting the measurement results of the wheel-rail force. To solve this problem, a measurement compensation method is proposed. ［Method］The influence...
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Urban Mass Transit Magazine Press
2024-12-01
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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.2024.12.019.html |
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| author | CHEN Chunjun DENG Qian |
| author_facet | CHEN Chunjun DENG Qian |
| author_sort | CHEN Chunjun |
| collection | DOAJ |
| description | ［Objective］During train operation, there is random vibration in the wheelset, which causes position changes of the wheel-rail contact point, thereby affecting the measurement results of the wheel-rail force. To solve this problem, a measurement compensation method is proposed. ［Method］The influence of wheel-rail contact point position changes on the force-measuring wheel, and the compensation scheme for wheel-rail force measurement after wheel-rail contact point position change are introduced. The validity of the wheel-rail force measurement compensation scheme considering wheel-rail contact point position changes is verified through simulation analysis. ［Result & Conclusion］After adding the U.S Grade V track irregularity spectrum excitation, the maximum offset of the wheel-rail contact point position is 17.53 mm, and the maximum relative error of the vertical force reaches 22.85%; after adopting the proposed measuring compensation method, the maximum relative error of the wheel-rail vertical force decreases to 8.02%, and the measurement accuracy is significantly improved. After superimposing the sharp bend irregularity spectrum, the maximum derailment coefficient reaches 1.016 8, exceeding the allowable limit; the derailment coefficient calculated by the non-offset calibration coefficient is 0.347 7, and the derailment coefficient calculated with the proposed compensation method is 0.962 2, indicating that this method can accurately reflect better the train running safety status. |
| format | Article |
| id | doaj-art-c7c75bbab7544310b0825fc897fb8972 |
| institution | DOAJ |
| issn | 1007-869X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-c7c75bbab7544310b0825fc897fb89722025-08-20T02:50:05ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2024-12-01271211311810.16037/j.1007-869x.2024.12.019Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation MethodCHEN Chunjun0DENG Qian1School of Mechanical Engineering of Southwest Jiaotong University, 610031, Chengdu, ChinaSchool of Mechanical Engineering of Southwest Jiaotong University, 610031, Chengdu, China［Objective］During train operation, there is random vibration in the wheelset, which causes position changes of the wheel-rail contact point, thereby affecting the measurement results of the wheel-rail force. To solve this problem, a measurement compensation method is proposed. ［Method］The influence of wheel-rail contact point position changes on the force-measuring wheel, and the compensation scheme for wheel-rail force measurement after wheel-rail contact point position change are introduced. The validity of the wheel-rail force measurement compensation scheme considering wheel-rail contact point position changes is verified through simulation analysis. ［Result & Conclusion］After adding the U.S Grade V track irregularity spectrum excitation, the maximum offset of the wheel-rail contact point position is 17.53 mm, and the maximum relative error of the vertical force reaches 22.85%; after adopting the proposed measuring compensation method, the maximum relative error of the wheel-rail vertical force decreases to 8.02%, and the measurement accuracy is significantly improved. After superimposing the sharp bend irregularity spectrum, the maximum derailment coefficient reaches 1.016 8, exceeding the allowable limit; the derailment coefficient calculated by the non-offset calibration coefficient is 0.347 7, and the derailment coefficient calculated with the proposed compensation method is 0.962 2, indicating that this method can accurately reflect better the train running safety status.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.019.htmlsubwayforce-measuring wheelsetwheel-rail contact pointwheel-rail force measurement compensation method |
| spellingShingle | CHEN Chunjun DENG Qian Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method Chengshi guidao jiaotong yanjiu subway force-measuring wheelset wheel-rail contact point wheel-rail force measurement compensation method |
| title | Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method |
| title_full | Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method |
| title_fullStr | Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method |
| title_full_unstemmed | Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method |
| title_short | Influence of Wheel-Rail Contact Point Changes on Force-Measuring Wheelset Measurement and the Compensation Method |
| title_sort | influence of wheel rail contact point changes on force measuring wheelset measurement and the compensation method |
| topic | subway force-measuring wheelset wheel-rail contact point wheel-rail force measurement compensation method |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.019.html |
| work_keys_str_mv | AT chenchunjun influenceofwheelrailcontactpointchangesonforcemeasuringwheelsetmeasurementandthecompensationmethod AT dengqian influenceofwheelrailcontactpointchangesonforcemeasuringwheelsetmeasurementandthecompensationmethod |