基于扫描线的铸造气相域种子填充算法改进  

Improvement of Seed Filling Algorithm in Casting Gas Phase Based on Scanning Line

作　　者：陈卓[1] 廖敦明[1] 陈涛 Chen Zhuo;Liao Dunming;Chen Tao(State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology;Wuhan Chenxi Yunfeng Technology Co.,Ltd.)

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,武汉430074 [2]武汉晨曦芸峰科技有限公司

出　　处：《特种铸造及有色合金》2020年第1期42-46,共5页Special Casting & Nonferrous Alloys

基　　金：教育部新世纪优秀人才支持计划(NCET-13-0229);华合方实验室基金资助项目。

摘　　要：在铸造CAE后处理中,需要对铸件孤立气相域进行填充显示,但是随着铸件复杂程度的不断增加,扫描线种子填充算法已无法适应铸造CAE后处理模块显示海量数据的需求。通过改进原算法,修改栈结构,使得扫描过的线段和填充过的单元不再分别进行扫描和填充,减少了数据计算量,并行计算大大缩短了填充和显示时间。通过多个实例验证了改进算法,提高了复杂铸件孤立液相区域的显示速度,且填充区域越大,节省时间越多。In the post-processing of cast CAE,it is necessary to fill the isolated gas phase of the casting,however as the complexity of the casting increases,the scanning line seed filling algorithm cann’t adapt to the demand of the massive data generated by the casting CAE post-processing module.By modifying the original algorithm,the stack structure was modified,so that the scanned line segments and the filled cells didn’t need scanned and filled,respectively,which reduced the amount of calculation data,and the parallel calculation greatly saved the filling and display time.The results of several examples show that the improved algorithm can improve the display speed of isolated areas of complex castings,and with the filling area increase,the more time is saved.

关 键 词：扫描线种子填充算法 铸造CAE 孤立域 气相 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] O242[自动化与计算机技术—计算机科学与技术]