利用磁畴理论和磁弹耦合理论，得出了地学尺度下包含磁致伸缩效应的弹性平衡方程。

Using the theories of magnetic domain and magneto-elastic coupling, obtains the elastic equilibrium equation containing magnetostrictive effect in the dimension of the earth science.

youdao

根据三维弹性平衡方程和层间剪切滑移条件，导出了一个复合材料层板层间剪切滑移模型。

According to the three dimensional elastic equilibrium equations and the conditions of interfacial shear slip, a model of interfacial shear slip of laminated composite plates is developed.

youdao

首次推导出具有弹性元件的弹性连杆机构动力学方程，从理论上阐述了此平衡方法的有效性。

The dynamic equation of elastic linkage with compliance elements is derived for the first time and the validity of new balancing method is discussed.

youdao