摘要
提出了一种新的离散化方法，即矩形板分析的刚性有限条法．该方法将板离散成ｎ个板条，将各板条的变形能和刚度集中于各板条的轴线或边线上，以各结线的广义挠度作为Ｌａ－ｇｒａｎｇｉａｎ坐标，用最小总势能原理建立系统的平衡方程．最后，通过例题将刚性有限条法和有限条法及精解进行了比较．
A new discretization approach-finite rigidity strip method for rectangular plate analysis is proposed in this paper, in which the plate is divided into plate strips, and the deformation energy of each strip is concentrated along the axis of the strip. The generalized deflections of axes are taken as Lagrangian coordinates, and the equilibrium equation of the discrete system is founded on the minimum total potential energy principle. Finally, the comparison between the finite rigidity strip method and the finite strip method are made and the exact answer verifipd with two examples.
出处
《天津大学学报》
EI
CAS
CSCD
1996年第2期229-234,共6页
Journal of Tianjin University(Science and Technology)
