计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
15期
194-198,243
,共6页
排样%成组技术%射线投影法%船舶件%数据库%特征识别
排樣%成組技術%射線投影法%船舶件%數據庫%特徵識彆
배양%성조기술%사선투영법%선박건%수거고%특정식별
nesting%group technology%ray projection method%ship parts%database%feature recognition
针对船舶件排样问题，基于成组原理开发一种优化排样及数控切割系统。探讨了船舶件缺口和孔洞消除方法，完成船舶件多边形曲线的简化；基于射线投影法完成船舶件的形状特征识别，把其分类成预定义的模式；构建了零件成对成组规则，提出一种多边形模式成组方法；研究基于DXF文件的数控代码生成原理和开发基于SQL2000的船舶件排样数据库。通过船舶件排样系统验证，该方法可行，数控代码生成正确，能够有效完成船舶件排样。
針對船舶件排樣問題，基于成組原理開髮一種優化排樣及數控切割繫統。探討瞭船舶件缺口和孔洞消除方法，完成船舶件多邊形麯線的簡化；基于射線投影法完成船舶件的形狀特徵識彆，把其分類成預定義的模式；構建瞭零件成對成組規則，提齣一種多邊形模式成組方法；研究基于DXF文件的數控代碼生成原理和開髮基于SQL2000的船舶件排樣數據庫。通過船舶件排樣繫統驗證，該方法可行，數控代碼生成正確，能夠有效完成船舶件排樣。
침대선박건배양문제，기우성조원리개발일충우화배양급수공절할계통。탐토료선박건결구화공동소제방법，완성선박건다변형곡선적간화；기우사선투영법완성선박건적형상특정식별，파기분류성예정의적모식；구건료령건성대성조규칙，제출일충다변형모식성조방법；연구기우DXF문건적수공대마생성원리화개발기우SQL2000적선박건배양수거고。통과선박건배양계통험증，해방법가행，수공대마생성정학，능구유효완성선박건배양。
A nesting and CNC cutting system based on group principle for ship parts nesting problem is proposed. It discusses the method of ship parts notch elimination and finishes polygon boundary curve simplification; during ship parts shape feature recognition based on ray projection method, parts are classified into pre-defined patterns;according to part pairing and grouping rules, a polygon pattern grouping method is proposed;NC code generating principle is researched based on DXF files and ship parts nesting database is developed based on SQL2000. Through ship parts nesting system verification, this algorithm is feasible, and NC code generation is correct;it can effectively realize ship parts nesting.
