倪樵, 张惠兰, 黄玉盈, 陈贻平. DQ法用于具有弹性支承半圆形输液曲管的稳定性分析[J]. 工程力学, 2000, 17(6): 59-64.
引用本文: 倪樵, 张惠兰, 黄玉盈, 陈贻平. DQ法用于具有弹性支承半圆形输液曲管的稳定性分析[J]. 工程力学, 2000, 17(6): 59-64.
NI Qiao, ZHANG Hui-lan, HUANG Yu-ying, CHEN Yi-ping. DIFFERENTIAL QUADRATURE METHOD FOR THE STABILITY ANALYSIS OF SEMI-CIRCULAR PIPE CONVEYING FLUID WITH SPRING SUPPORT[J]. Engineering Mechanics, 2000, 17(6): 59-64.
Citation: NI Qiao, ZHANG Hui-lan, HUANG Yu-ying, CHEN Yi-ping. DIFFERENTIAL QUADRATURE METHOD FOR THE STABILITY ANALYSIS OF SEMI-CIRCULAR PIPE CONVEYING FLUID WITH SPRING SUPPORT[J]. Engineering Mechanics, 2000, 17(6): 59-64.

DQ法用于具有弹性支承半圆形输液曲管的稳定性分析

DIFFERENTIAL QUADRATURE METHOD FOR THE STABILITY ANALYSIS OF SEMI-CIRCULAR PIPE CONVEYING FLUID WITH SPRING SUPPORT

  • 摘要: 将微分求积方法推广到输液曲管的稳定性分析,这是一个新的尝试。与其它数值方法相比,该法极易处理具有弹性边界的输液曲管,另外,由于避免了一系列数值积分的计算,故计算量较少,精度令人满意。在此基础上,本文还研究了若干参数对其临界流速的影响。

     

    Abstract: An attempt is made the extend the Differential Quadrature Method (DQM) to the stability analysis of curved pipes conveying fluid. The influence of several parameters on the critical flow velocity is studied. In comparison with other numerical methods, the differential quadrature method can deal with the problem easily due to its mathematical simplicity and avoidance of numerical integration. It is demonstrated that the application of DQM to the solution of the oth-order governing equation with unequally spaced sampling points is successful.

     

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