本文把框剪结构划分为若干个子域。框架部分折算为等效连续体,用三次B样条函数作为位移函数分析其动力特性。所建立的刚度矩阵和质量矩阵均为对称正定带状矩阵。便于编制计算机程序并节省内存,输入很简单。可在小型或微型机上计算较为复杂的问题,而且精度较高。 This paper divides the frame-scissor structure into several sub-domains. The frame part is converted into an equivalent continuum, and its dynamic characteristics are analyzed using the cubic B-spline function as the displacement function. Both the stiffness matrix and the mass matrix are symmetrical and positive definite banded matrices. Easy to program computer programs and save memory, the input is very simple. More complex problems can be calculated on a small or microcomputer, and the accuracy is higher.