The displacement vector is biased estimated values, and sometimes, the area where the measuring accuracy is the highest could not have the best ability to detect the deformation.
对没有固定基准的自由网，位移矢量是真实位移的有偏估值，有时精度最高的地方发现变形能力并非最强。
According to the rule of transfer with cross section state vector, the internal forces and deformation of cross section are obtained.
利用截面状态矢量的传递规律，求解任一截面的内力和变形。
The CA model and FEM are combined, then the differential PCA-FEM algorithm is set up, which attempts to simulate the deformation and failure of rock in the sense of vector.
引入应力、应变和位移等矢量概念，将元胞自动机模型与有限元方法结合起来，建立了差分形式的PCA有限元算法，尝试从矢量的角度模拟岩石的变形及破坏问题。
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