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流体诱发水平悬臂输液管的内共振和模态转换(Ⅰ)

徐鉴 杨前彪

徐鉴, 杨前彪. 流体诱发水平悬臂输液管的内共振和模态转换(Ⅰ)[J]. 应用数学和力学, 2006, 27(7): 819-824.
引用本文: 徐鉴, 杨前彪. 流体诱发水平悬臂输液管的内共振和模态转换(Ⅰ)[J]. 应用数学和力学, 2006, 27(7): 819-824.
XU Jian, YANG Qian-biao. Flow-Induced Internal Resonances and Mode Exchange in Horizontal Cantilevered Pipe Conveying Fluid(Ⅰ)[J]. Applied Mathematics and Mechanics, 2006, 27(7): 819-824.
Citation: XU Jian, YANG Qian-biao. Flow-Induced Internal Resonances and Mode Exchange in Horizontal Cantilevered Pipe Conveying Fluid(Ⅰ)[J]. Applied Mathematics and Mechanics, 2006, 27(7): 819-824.

流体诱发水平悬臂输液管的内共振和模态转换(Ⅰ)

基金项目: 国家自然科学基金资助项目(10472083);国家自然科学基金(重点)资助项目(10532050)
详细信息
    作者简介:

    徐鉴(1961- ),男,浙江人,教授,博士(联系人.Tel:+86-21-65981138;Fax:+86-21-65983267;E-mail:xujian@mail.tongji.edu.cn).

  • 中图分类号: O322;U137.91

Flow-Induced Internal Resonances and Mode Exchange in Horizontal Cantilevered Pipe Conveying Fluid(Ⅰ)

  • 摘要: 运用牛顿法导出水平悬臂刚性输液管的非线性动力学数学模型.为了对该模型进行理论分析,通过对各个相关实际物理量的量级定性分析,给出了模型中各个物理参数的量级.在此基础上,应用多尺度法首先得到输液管自由振动模态的特征函数,利用悬臂管的边界条件给出了特征值满足的特征方程, 发现管内流体速度可以诱发第一阶模态和第二阶模态3种形式的内共振分别是3∶1、2∶1和1∶1内共振, 从理论上解释了流速诱发水平悬臂输液管系统内共振的机理.由于3∶1内共振所对应的流速最小,因此这种形式的内共振是最先出现的,也是最重要的.
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出版历程
  • 收稿日期:  2004-05-25
  • 修回日期:  2006-03-01
  • 刊出日期:  2006-07-15

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