基于ANSYS与MATLAB软件联合实现复杂构造应力场模拟的融合技术研究

Study on the Software’s Technique Incorporation in ANSYS and MATLAB for Complex Numerical Simulation of Tectonic Stress

基于有限元模拟软件ANSYS的命令流规则、MATLAB函数库与实时可视化技术,构建了以华北地区构造块体边界为基础的非规则边界有限元数值模拟模型。以节点坐标、节点编号的唯一性为基础,利用MATLAB编写APDL代码实现对边界条件非规则加载以及内源位错矢量非规则加载,并给出计算库伦应力的具体例子。在计算结果成图的后续处理方面,利用MATLAB软件中椭球坐标转换函数,将笛卡尔坐标下的计算结果转换到地理坐标下,进而可在各通用地理成图软件中实现对数值模拟结果进行细微成图与对比分析。

Based on the rule of FEM software command of ANSYS,and the function library of MATLAB and its real-time visualization,we accomplished an irregular boundary FEM model with according to the tectonic boundary of North China.Furthermore,based on the uniqueness of FEM node coordinate and its number indication,we made use of MATLAB to produce APDL code to put the irregular load on the boundary nodes and to put the irregular dislocation vectors on inner source.We also provided an example on calculation of Coulomb stress.In the post-processing of result plotting,with the help of function of ellipsoid in MATLAB,we transferred the node coordinate in Cartesian into the geographical coordinates.Thereafter we could display the numerical simulation result in numerous general geographical software regardless of subtle image or deep comparison.