只有网格步长足够小也就是环境参数很详细时，云模型和数据场计算的结合才能充分发挥特色。
According to the different step size it is fount that field calculation results is no different from the results without the use of cloud model when grid step size too rough.
分析讨论了影响材料体积变化的三个主要因素：有限元网格变形及网格重划、增量步长、惩罚因子，并给出了相应的控制方法。
Three main factors are discussed in detail: deformation of finite element mesh and remeshing, incremental step length, penalty coefficient. Moreover the control ways are provided.
选取合适的空间网格距离和时间迭代步长，是该方法应用到实际资料处理中的关键。
The key to successful application of this method in real data processing lies in appropriate spacial grids and time iteration step size.
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