基于修正的拉格朗日坐标描述法，推导了空间纤绳单元的大位移刚度矩阵。
In this paper, the lap displacement stiffness matrix of the space cable is derived bac on the updated Total Lagrangian Formulation.
对内弹道均相流数值计算，用拉格朗日坐标下的方程组，容易处理运动边界问题。
Moving boundary problem can easily be solved with equations under the Lagrange Coordinate System for numerical computations of homogenous flow in interior ballistics.
在这个计算中，采用了流体——弹塑性变模量模型，使用了拉格朗日坐标有限差分方法和人造粘性，获得了冲击波、空腔和波形参数，并分析了这些参数。
In this computation a fluid-elastic plastic model and a finite difference method of Lagrange coordinate are used The parameters of shock, cavity and waveform are obtained and analysed.
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