模腔注射填充的全矢量显式算法

为满足注射成形模拟工业应用的实际需要，基于已有的模拟注填充显式算法，提出并实现了一种新的全矢量化显式算法，对于各类注射填充的模拟问题，此算法避免了压力场的全局求解，矩阵操作仅在单元一级进行，通过反馈修正，各时间增量步满足不可压缩条件，由于避免了所有的全局耦合求解，计算代价与节点的自由度近似成正比，可实现填充模拟过程的高效运算，容易实现并行计算，通过新算法的填充模拟结果与MINI单元的三维模拟结果比较，证实了该算法的有效性。

Fully Vectorial and Explicit Algorithm for Mould Filling

To meet the need of industrial application of mould filling simulation, a fully vectorial and explicit algorithm was proposed on the basis of current explicit algorithms. For the simulation of different mould filling processes, the global solution for pressure field can be avoided by this algorithm, and only the matrix operations at element level are performed. The incompressible condition can be maintained by a corrective feedback operation. All the global solutions can be eliminated in numeral operation, and then the computational cost is closely proportional to the degree of freedom level. As a result, the simulation of injection processes is efficient, and parallel calculation for a high performance system with multi-clusters is easy to realize. The comparison of numerical results obtained with this algorithm and 3D simulation using MINI elements proves the validity and efficiency of the proposed algorithm.