Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
本文从非棱柱形梁的弯曲理论出发，推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
2
This paper gives an analytic solution of non-circle opening based on linear viscoelastic theories and theory of function of a complex variable.
本文根据粘弹性体的理论与复变函数理论给出了非圆形巷道(洞室等)的粘弹性解析解。
3
Finite Element Technique based on Rayleigh-Ritz idea is used to solve wave propagation in non-homogeneous medium with variable velocities.