崔晓璐,张洪伟,徐佳,徐晓天,杨红娟,杨芙蓉.科隆蛋扣件区段双重钢轨吸振器对钢轨波磨的抑制效果研究[J].表面技术,2024,53(5):41-51.
CUI Xiaolu,ZHANG Hongwei,XU Jia,XU Xiaotian,YANG Hongjuan,YANG Furong.Suppression of Rail Corrugation by Double Rail Vibration Absorber in Cologne-egg Fastener[J].Surface Technology,2024,53(5):41-51 |
| 科隆蛋扣件区段双重钢轨吸振器对钢轨波磨的抑制效果研究 |
| Suppression of Rail Corrugation by Double Rail Vibration Absorber in Cologne-egg Fastener |
| 投稿时间：2023-02-20 修订日期：2023-06-14 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.05.004 |
| 中文关键词: 钢轨波磨 摩擦自激振动 双重钢轨吸振器 科隆蛋扣件 参数优化 抑制效果 |
| 英文关键词:rail corrugation friction self-excited vibration double rail vibration absorber Cologne-egg fastener parameter optimization suppression effect |
| 基金项目:国家自然科学基金面上项目(52275176);重庆市教委科学技术研究项目重点项目(KJZD-K202100703);重庆市基础研究与前沿探索项目(CSTB2022NSCQ-MSX1542);重庆交通大学研究生科研创新项目(2023S0063);四川省自然科学基金项目(2022NSFSC0450) |
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| Author | Institution |
| CUI Xiaolu | School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China;Chongqing Rail Transit Group Co., Ltd., Chongqing 401120, China |
| ZHANG Hongwei | School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
| XU Jia | School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
| XU Xiaotian | School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China |
| YANG Hongjuan | School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China |
| YANG Furong | Sichuan Jiaotong Hospital, Chengdu 610097, China |
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| 中文摘要: |
| 目的 研究科隆蛋区段双重钢轨吸振器对钢轨波磨的抑制效果。方法 首先，结合现场建立轮对-钢轨-吸振器系统的有限元模型。然后，基于摩擦自激振动理论，采用复特征值法与瞬时动态法对单重和双重钢轨吸振器的抑制效果进行对比。进而，采用谐响应分析探究双重钢轨吸振器对钢轨波磨抑制效果提高的原理。最后，对双重钢轨吸振器的关键连接参数进行参数化分析，基于最小二乘法对其进行多参数拟合求最优解。结果 轮轨系统有3个不稳定振动频率228.57、480.97、1 181.60 Hz，单重钢轨吸振器对其的抑制效果分别达到了15.20%、100%、20.19%，双重钢轨吸振器对其的抑制效果达到了15.20%、100%、100%。双重钢轨吸振器调谐频率分别为183.64、473.62 Hz。对比参数优化前后，经过优化连接参数后的轮对-钢轨-吸振器系统的复特征值实部较小，为33.683。结论 双重钢轨吸振器因其2个调谐频率能更好地抑制轮轨系统的多个不稳定振动频率，从而对钢轨波磨的抑制效果更好。减小连接刚度和增大连接阻尼能提高其对钢轨波磨的抑制效果。当双重钢轨吸振器的下质量块垂向刚度为22.7×107 N/m、上下质量块垂向刚度为1.856×107 N/m、连接阻尼为6 N.s/m时，能有效地抑制科隆蛋扣件区段钢轨波磨的产生。 |
| 英文摘要: |
| Rail vibration absorber is a common method to suppress rail corrugation in subway lines. However, the suppression effect of double rail vibration absorber on rail corrugation is not clear. Therefore, the work aims to study the suppression effect of double rail vibration absorber on rail corrugation in Cologne-egg. Firstly, through the field investigation of Jiaochangkou-Xiaoshizi section of Chongqing Line 1, it was found that the rail corrugation was mainly concentrated in the low rail of the curve of small radius. After the installation of rail vibration absorber, the rail corrugation could be suppressed to a certain extent. Then, combined with the field investigation, the finite element model of the upper wheel-rail-vibration absorber system in the curve section with small radius supported by the Cologne-egg fastener was established. Based on the theory of friction self-excited vibration, the suppression effects of single rail vibration absorber and double rail vibration absorber on rail corrugation were compared by complex eigenvalue method and instantaneous dynamic method. According to the three unstable frequencies of friction self-excited vibration of wheel rail system of 228.57 Hz, 480.97 Hz and 1 181.60 Hz, the suppression effect of single rail vibration absorber can reach 15.20%, 100% and 20.19%, respectively. The suppression effect of double rail vibration absorber was 15.20%, 100% and 100 %. The vibration absorber of double rail could effectively suppress the friction self-excited vibration of wheel rail system, and the effect of double rail vibration absorber was better than that of single rail vibration absorber. In order to explore the principle of better suppression effect of double rail vibration absorber, the harmonic response method was used to analyze the tuning frequency of two mass blocks of double rail vibration absorber to explore the suppression range of double srail vibration absorber on rail corrugation. Two tuning frequencies 183.64 Hz and 473.62 Hz were found for the double rail absorber, which indicated that its suppression range was wider. Finally, the effect law of different connection parameters of double rail vibration absorber on rail corrugation was analyzed. Moreover, the connection parameters of double rail vibration absorber were fitted with multiple parameters based on least square method and the optimal solution was obtained by particle swarm optimization algorithm. The real part of the complex eigenvalue of the wheel-rail-vibrator system with connected parameters after parameter optimization was smaller, which was 33.683, compared with that before and after parameter optimization. In other words, the double rail vibration absorber has two frequency ranges, which can well suppress multiple unstable frequencies of the wheel-rail system, and obtain better effect on rail corrugation suppression. Besides, reducing the connection stiffness and increasing the connection damping of the double rail vibration absorber can improve the suppression effect on rail corrugation. When the vertical stiffness of the lower mass block of the double rail vibration absorber is 22.7×107 N/m, the vertical stiffness of the upper and lower mass block is 1.856×107 N/mand the damping of the absorber is 6 N.s/m, the corrugation of the rail can be suppressed more effectively. |
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