Based on the elasticequilibrium and electrostatic equations, the weak forms of the coupling equations are derived.
利用静力平衡方程、静电学基本方程，把力学和电学效应耦合在一起，建立力-电耦合的等效积分弱形式。
2
The elasticequilibrium is reduced to solve some Rimann boundary value problem and the solution in closed form is given.
所求问题归结为求解复应力函数的边值问题，并给出了封闭形式的解。
3
Using the theories of magnetic domain and magneto-elastic coupling, obtains the elasticequilibrium equation containing magnetostrictive effect in the dimension of the earth science.