一、前言关于筒中筒结构在侧力作用下的计算工作,向为许多设计人员所关心。如用矩阵位移法进行精确计算,未知量数目太多,只能在大型计算机上求解。针对目前国内多采用巾、小型计算机的情况,有必要研究能满足工程要求的近似计算方法。文献[5]曾用广义坐标方法分析平面多层框架,显示了其缩减未知量数目的优点。本文将用此法分析框筒及筒中 I. INTRODUCTION The calculation of the tube structure in the cylinder under the action of lateral forces has been of concern to many designers. If the matrix displacement method is used for accurate calculation, the number of unknowns is too many and can only be solved on a large computer. For the current situation in which towels and small computers are widely used in China, it is necessary to study the approximate calculation method that can meet the engineering requirements. The literature [5] used the generalized coordinate method to analyze the plane multi-layer framework, showing its advantage of reducing the number of unknowns. This article will use this method to analyze the tube and cartridge