该法能在一张散斑图上记录下物体动态变形的全过程，在全场滤波时可得到任意时刻的瞬态位移偏导数场。
The whole dynamic process can be recorded on a single specklegram, and the derivatives of displacements of every moment can be obtained by whole-field filtering.
采用ANSYS-DYNA3D软件对缓冲结构进行大位移变形的动态分析计算。
The large deformation of the part is dynamically analyzed and computed with ANSYS-DYNA3D software.
该方法简单易行，计算结果与实测位移接近，具有较高的精度，实现了巷道围岩变形过程的动态模拟。
This method is simple. The calculated data are close to the measured data, and accuracy is also high. The model can make a dynamic simulation of rock deformation in a tunnel.
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