公开(公告)号：EP3246831A1

公开(公告)日：2017-11-22

申请号：EP17168873.2

申请日：2017-04-28

申请人： Dassault Systemes Simulia Corp.

发明人： Oancea, Victor George ,  Ortiz, Juan Antonio Hurtado ,  Engelmann, Bruce

IPC分类号： G06F17/50

CPC分类号： G06F17/5018 ,  B33Y50/00 ,  G06F2217/16

摘要： Methods and systems for providing accurate, scalable, and predictive 3D printing simulations using numerical methods for part-level simulations. Complex parts can be discretized into finite elements using independent and arbitrary meshing. The real additive manufacturing tooling path and printing time of a printing machine are simulated and applied to the mesh of finite elements using an intersection module that combines the finite element mesh with the tool path information of the printing machine in a geometric sense. This allows for localized heating effects to be simulated very accurately, and for cooling assessments to be precisely computed given the intersection module's computation of partial facets and volumes of the finite elements at any given time in the printing simulation.

摘要翻译： 使用数值方法提供准确，可扩展和预测性3D打印模拟的方法和系统，用于部件级仿真。 复杂零件可以使用独立和任意网格离散化为有限元。 模拟印刷机的真正的增材制造工具路径和印刷时间，并且使用将几何意义上将印刷机的刀具路径信息与有限元网格相结合的相交模块应用于有限元网格。 这允许非常准确地模拟局部加热效果，并且在印刷模拟的任何给定时间给定相交模块计算有限元的局部刻面和体积以精确计算冷却评估。