...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Shock and vibration >Research on Bogie Frame Lateral Instability of High-Speed Railway Vehicle
【24h】

Research on Bogie Frame Lateral Instability of High-Speed Railway Vehicle

机译：高速铁路车辆转向架构架侧向失稳的研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to find out the reason for the bogie frame instability alarm in the high-speed railway vehicle, the influence of wheel tread profile of the unstable vehicle was investigated. By means of wheel-rail contact analysis and dynamics simulation, the effect of tread wear on the bogie frame lateral stability was studied. The result indicates that the concave wear of tread is gradually aggravated with the increase of operation mileage; meanwhile the wheel-rail equivalent conicity also increases. For the rail which has not been grinded for a long time, the wear of gauge corner and wide-worn zone is relatively severe; the matching equivalent conicity is 0.31-0.4 between the worn rail and the concave-worn-tread wheel set. The equivalent conicity between the grinded rail and the concave-worn tread is below 0.25; the equivalent conicities are always below 0.1 between the reprofiled wheel set and various rails. The result of the line test indicates that the lateral acceleration of bogie frame corresponding to the worn wheel-rail can reach 8.5m/s(2), and the acceleration after the grinding is reduced below 4.5m/s(2). By dynamics simulation, it turns out that the unreasonable wheel-rail matching relationship is the major cause of the bogie frame lateral alarm. With the tread-concave wear being aggravated, the equivalent conicity of wheel-rail matching constantly increases, which leads to the bogie frame lateral instability and then the frame instability alarm.
机译：为了找出高速铁路车辆转向架车架失稳报警的原因，研究了不稳定车辆车轮轮辋轮廓的影响。通过轮轨接触分析和动力学仿真，研究了胎面磨损对转向架框架横向稳定性的影响。结果表明，随着行驶里程的增加，胎面的凹面磨损逐渐加剧。同时，轮轨等效锥度也增加了。对于长时间未磨削的钢轨，轨距角和磨损区的磨损比较严重。磨损的轮轨和凹面胎面轮对之间的匹配当量锥度为0.31-0.4。磨过的导轨和凹面胎面之间的等效锥度低于0.25；改型的轮对和各种导轨之间的等效锥度始终低于0.1。线测试结果表明，与磨损的轮轨相对应的转向架车架的横向加速度可以达到8.5m / s（2），而磨削后的加速度减小到4.5m / s（2）以下。通过动力学仿真，发现不合理的轮轨匹配关系是转向架框架侧向报警的主要原因。随着胎面-凹面磨损的加剧，轮轨匹配的等效锥度不断增加，这导致转向架车架横向不稳定，进而导致车架不稳定报警。

著录项

  • 来源
    《Shock and vibration》 |2018年第5期|8469143.1-8469143.13|共13页
  • 作者

    Gao Chang; Luo Shihui; Ma Weihua; Wang Chen; Xu Ziqiang;

  • 作者单位

    China Acad Railway Sci, Locomot Car Res Inst, Beijing 100081, Peoples R China;

    Southwest Baotong Univ, Tract Power State Key Lab, Chengdu 610031, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号