线弹性理论中基本方程的广义形式

The Generalized Form of Fundamental Equationin Linear Elastic Theory

线弹性理论中，平衡、几何、物理方程称为基本方程。它们于各种正交坐标系下，可以归纳为统一的形式，即广义形式，从而便于记忆和应用。

In linear elastic theory, equilibrium, geometrical and physicalequations are called fundamental equations. In each kind of orthogonal coordinates, they can be concluded to become a unified form, that is, a generalized form. Therefore, it has become convenient to memorize and use.