摘要
利用有限元与生物力学原理构建心脏表面运动的有限元方程,快速建立四面体网格的有限元心脏模型,模拟心脏的动态形变,从心脏的三维表面恢复、应力应变分析和三维运动建模等方面着手,分析计算心脏在收缩期相邻时刻的应力分布及形变情况,有效地模拟了心脏的动态形变。实验结果表明了该方法的有效性和可行性。
The method of the finite element equation of cardiac surface motion is constructed using the finite element method and the biological mechanics principle.The rapid generation of tetrahedral mesh for heart modeling of the finite element is used to simulate heart's dynamic deformation.Commencing on the 3D surface restoration,strain analysis and 3D motion modeling,the stress distribution and deformation of the cardiac during systole are analyzed and calculated.It effectively simulates dynamic deformation of the cardiac.The experimental results also show the effectiveness and validity.
出处
《计算机与现代化》
2011年第2期58-60,64,共4页
Computer and Modernization
关键词
心脏建模
有限元方法
形变模型
四面体网格
heart modeling
finite element method
deformable model
tetrahedral mesh