GDQR法用于输流曲管的流致振动研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金资助项目(10272051)


Gdqr for the analyses of flowinduced vibrations of curved pipes conveying fluid
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    将广义微分求积法(GDQR)用于分析输流曲管的流致振动问题,这是一个新的尝试.基于输流曲管的面内振动微分方程,利用GDQR法使曲管系统在空间域上得以离散化,从而获得了输流曲管的动力学方程组.数值算例中,计算得到了输流曲管在几种典型边界条件下的固有频率以及曲管发生失稳的临界流速等,这些计算结果与前人的解析解结果吻合较好.此外,还给出了两端固定输流曲管典型的动力响应行为.研究表明,GDQR法极易处理输流曲管这一类动力学模型,精度令人满意,进一步的研究可望推广到输流管道的非线性振动分析中.

    Abstract:

    An attempt is made to extend the General Differential Quadrature Rule (GDQR) to the analysis for flowinduced vibration of curved pipes conveying. Based on the equation of in-plane vibration of curved pipes conveying fluid, the GDQR is applied to discretize the pipe modal, leading to a set of equations for the fluidconveying pipes' dynamic behaviour. Calculations of natural frequencies and critical fluid velocities by GDQR show reasonably agreement with the analytical solutions. Further, this paper investigates the typical dynamic responses of a clampedclamped curved pipe conveying fluid. As a result, the represented research shows that the GDQR can deal with these curved pipe models easily with satisfactory computation precision. Therefore, the application of GDQR for nonlinear vibrations of pipes conveying fluid will be the subject of further study.

    参考文献
    相似文献
    引证文献
引用本文

王琳,倪樵,黄玉盈. GDQR法用于输流曲管的流致振动研究[J].动力学与控制学报,2005,3(1):72~77; Wang Lin, Ni Qiao, Huang Yuying. Gdqr for the analyses of flowinduced vibrations of curved pipes conveying fluid[J]. Journal of Dynamics and Control,2005,3(1):72-77.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2004-12-01
  • 最后修改日期:2005-01-12
  • 录用日期:
  • 在线发布日期:
  • 出版日期:

微信公众号二维码

手机版网站二维码