本文在同时计及板和偏心筋条的面内和面外位移的情况下,建立了能适应各种筋条尺寸和位置的离散型偏心加筋板稳定性控制方程式,采用半解析数值方法把因筋条偏心而产生的三个耦合偏微分方程转化为常系数微分方程,并采用加权残值方法导出齐次方程组,最终化为广义特征值问题予以求解.数值计算结果表明,本文方法简便可靠,精度较好. In this paper, considering the in-plane and out-of-plane displacements of plates and eccentric ribs, the stability control equations of discrete eccentric stiffened plates that can adapt to various rib sizes and positions are established. The three coupled partial differential equations resulting from the eccentricity of ribs are converted into constant coefficient differential equations, and the homogeneous equations are derived using the method of weighted residuals, and finally the generalized eigenvalue problem is solved. Numerical results show that the method is simple and convenient. Reliable, good accuracy.