结构力学中基本的四种对偶关系

Four basic dual relationships in structural mechanics

阐述了结构力学中力法、位移法、势能法与余能法四者的对偶关系,结合工程实例,分别用势能法和位移法对某刚架进行了计算分析,得出势能法和余能法实质上就是用能量形式表达的位移法和力法的结论。

Four dual relationships among force method, displacement method, potential method and residual energy method of structural mechanics were illustrated. Combined with the engineering example, a rigid frame was calculation analyzed with the potential method and displacement method, the conclusion that the potential method and residual energy method were the energy form to illustrate the displacement method and force method in nature was obtained.