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随机风速下高速列车的运行安全可靠性

于梦阁 张继业 张卫华

于梦阁, 张继业, 张卫华. 随机风速下高速列车的运行安全可靠性[J]. 力学学报, 2013, 45(4): 483-492. doi: 10.6052/0459-1879-12-324
引用本文: 于梦阁, 张继业, 张卫华. 随机风速下高速列车的运行安全可靠性[J]. 力学学报, 2013, 45(4): 483-492. doi: 10.6052/0459-1879-12-324
Yu Mengge, Zhang Jiye, Zhang Weihua. OPERATIONAL SAFETY RELIABILITY OF HIGH-SPEED TRAINS UNDER STOCHASTIC WINDS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 483-492. doi: 10.6052/0459-1879-12-324
Citation: Yu Mengge, Zhang Jiye, Zhang Weihua. OPERATIONAL SAFETY RELIABILITY OF HIGH-SPEED TRAINS UNDER STOCHASTIC WINDS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 483-492. doi: 10.6052/0459-1879-12-324

随机风速下高速列车的运行安全可靠性

doi: 10.6052/0459-1879-12-324
基金项目: 2013年西南交通大学博士研究生创新基金和中央高校基本科研业务费专项资金;“十一五”国家科技支撑计划(2009 BAG12A01-C09)和高速铁路基础研究联合基金(U1234208)资助项目.
详细信息
    通讯作者:

    于梦阁,博士研究生,主要研究方向:高速列车侧风安全及可靠性分析.E-mail:yumengge0627@163.com

  • 中图分类号: U270.1

OPERATIONAL SAFETY RELIABILITY OF HIGH-SPEED TRAINS UNDER STOCHASTIC WINDS

Funds: The project was supported by the 2013 Doctoral Innovation Funds of Southwest Jiaotong Universtiy and the Fundamental Research Funds for Central Univerities, the National Key Technology R & D Program of China (2009BAG12A01-C09) and the High-Speed Railway Basic Research Fund Key Project (U1234208).
  • 摘要: 基于可靠性理论提出了随机风速作用下高速列车风致安全分析的新方法, 这种方法可以对随机风速作用下高速列车的运行安全可靠性进行有效评估.首先基于Cooper理论和谐波叠加法计算随车移动点的脉动风速, 建立随机风速作用下高速列车非定常气动载荷的计算方法, 并通过数值仿真得到气动载荷系数的标准差随侧偏角的变化规律. 然后建立高速列车车辆系统动力学模型, 并对计算模型的正确性进行验证.最后以随机风速、侧力系数、升力系数、侧滚力矩系数、摇头力矩系数和点头力矩系数为基本随机变量, 研究随机风速作用下高速列车的运行安全可靠性和可靠性灵敏度, 给出随机风速作用下高速列车的概率特征风速曲线.研究结果表明:随着车速和风速的增大, 系统的失效概率增大;通过可靠性灵敏度分析发现侧力系数和侧滚力矩系数对高速列车的运行安全影响最大, 应该特别注意这两个参数的变化对高速列车运行安全性的影响;传统确定性方法得到的高速列车的安全域曲线偏于保守, 基于可靠性的方法可得到更合理的安全域曲线.

     

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出版历程
  • 收稿日期:  2012-11-16
  • 修回日期:  2013-02-26
  • 刊出日期:  2013-07-18

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