Imposition of boundary conditions by modifying the weighting coefficient matrices in the differential quadrature method

摘要: One of the important issues in implementation differential quadrature method is imposition given boundary conditions. There may be multiple conditions involving higher-order derivatives at points. The can imposed by modifying weighting coefficient matrices directly. However, existing not robust and known to have many limitations. In this paper, a systematic procedure proposed construct modified overcome these are exactly. Furthermore, it found that numerical results depend only on those sampling grid points where analogous equations governing established. other with no associated essential. Copyright © 2002 John Wiley & Sons, Ltd.