并由拱的非线性平衡方程入手，推导了圆弧拱的屈曲微分方程。
Differential equations for buckling of circular arches are derived from the nonlinear equilibrium equations in this thesis.
将桅杆结构离散为空间纤绳单元和梁单元计算模型，建立了桅杆结构非线性平衡方程。
The nonlinear equation of the guyed mast is presented based on calculation models of space cable and beam elements.
采用打靶法求解非线性控制方程，绘出了圆板的热过屈曲平衡路径。
The nonlinear governing equations are solved numerically by adopting a shooting method and the equilibrium paths of thermal post-buckling of the circular plates are obtained.
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