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车轨系统随机响应周期性拟稳态分析

张有为 项盼 赵岩 林家浩

张有为, 项盼, 赵岩, 林家浩. 车轨系统随机响应周期性拟稳态分析[J]. 力学学报, 2012, 44(6): 1046-1056. doi: 10.6052/0459-1879-12-041
引用本文: 张有为, 项盼, 赵岩, 林家浩. 车轨系统随机响应周期性拟稳态分析[J]. 力学学报, 2012, 44(6): 1046-1056. doi: 10.6052/0459-1879-12-041
Zhang Youwei, Xiang Pan, Zhao Yan, Lin Jiahao. A PSEUDO-STEADY STATE METHOD FOR ANALYZING RANDOM RESPONSES OF COUPLED VEHICLE-TRACK SYSTEMS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(6): 1046-1056. doi: 10.6052/0459-1879-12-041
Citation: Zhang Youwei, Xiang Pan, Zhao Yan, Lin Jiahao. A PSEUDO-STEADY STATE METHOD FOR ANALYZING RANDOM RESPONSES OF COUPLED VEHICLE-TRACK SYSTEMS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(6): 1046-1056. doi: 10.6052/0459-1879-12-041

车轨系统随机响应周期性拟稳态分析

doi: 10.6052/0459-1879-12-041
基金项目: 国家自然科学基金(50608012, 10502011), 国家重点基础研究发展计划 (2010CB832704)和大连理工大学理科基础科研专题 (DUT12LK50)资助项目.
详细信息
    通讯作者:

    赵岩

  • 中图分类号: U211.3

A PSEUDO-STEADY STATE METHOD FOR ANALYZING RANDOM RESPONSES OF COUPLED VEHICLE-TRACK SYSTEMS

Funds: The project was supported by the National Natural Science Foundation of China (50608012, 10502011), the National Basic Research Program of China (2010CB832704) and the Science Basic Research Topic of DUT (DUT12LK50).
  • 摘要: 提出用于三维车轨耦合系统随机动力响应高效求解的周期性拟稳态分析方法. 车辆采用三维刚体动力学模型,轨道结构利用三维轨道广义单元建模. 假定轨枕间距均匀,则列车在轨道上行驶过程中,车轨耦合系统动力学方程具有典型周期时变特征. 应用虚拟激励方法将轨道随机不平顺转化为虚拟简谐不平顺,在状态空间下运用周期系数微分方程的性质和Schur分解技巧将上述问题的求解转化为周期性拟稳态响应分析,只需通过求解系数矩阵为上三角的线性方程组即可代替以往时变系统虚拟响应求解过程中的逐步积分过程,计算效率获得较大提高. 采用该方法进行了三维车轨耦合系统的随机动力响应分析,并进行了不平顺随机载荷在车体、转向架、轮对和轨道等部件中传递机理分析,获得了一些有价值结论.

     

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出版历程
  • 收稿日期:  2012-02-16
  • 修回日期:  2012-06-02
  • 刊出日期:  2012-11-18

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