成组技术与生产现代化
成組技術與生產現代化
성조기술여생산현대화
GROUP TECHNOLOGY & PRODUCTION MODERNIZATION
2014年
2期
17-22
,共6页
覃璐瑶%张发平%高博%张功涛
覃璐瑤%張髮平%高博%張功濤
담로요%장발평%고박%장공도
计算机辅助工装设计%实例推理%航空零件%三维模型检索
計算機輔助工裝設計%實例推理%航空零件%三維模型檢索
계산궤보조공장설계%실례추리%항공령건%삼유모형검색
computer aided fixture design%case-based reasoning%aerial parts%3D model retrieval
针对航空产品的零件结构特点,将实例推理应用于航空结构零件机械加工工装设计。提出考虑工件信息、工艺信息和装夹信息的工装设计信息表示方法,来表达设计任务信息和以往设计实例信息。将工装设计实例分解为各属性,并按照一定方法对属性间的相似度进行量化,计算实例间的相似度值。结合分层检索的相似性评价算法,得到与设计任务匹配程度高的实例方案,并通过实例修正,达到新设计任务的快速实现。
針對航空產品的零件結構特點,將實例推理應用于航空結構零件機械加工工裝設計。提齣攷慮工件信息、工藝信息和裝夾信息的工裝設計信息錶示方法,來錶達設計任務信息和以往設計實例信息。將工裝設計實例分解為各屬性,併按照一定方法對屬性間的相似度進行量化,計算實例間的相似度值。結閤分層檢索的相似性評價算法,得到與設計任務匹配程度高的實例方案,併通過實例脩正,達到新設計任務的快速實現。
침대항공산품적령건결구특점,장실례추리응용우항공결구령건궤계가공공장설계。제출고필공건신식、공예신식화장협신식적공장설계신식표시방법,래표체설계임무신식화이왕설계실례신식。장공장설계실례분해위각속성,병안조일정방법대속성간적상사도진행양화,계산실례간적상사도치。결합분층검색적상사성평개산법,득도여설계임무필배정도고적실례방안,병통과실례수정,체도신설계임무적쾌속실현。
The reusing of the design experience plays an important promoting role in fixture rapid design process . According to the structural characteristics of parts of the avi-ation products , we apply case-based reasoning to aircraft structure parts machining fixture design process . Firstly ,the workpiece information ,process information and clamping information are considered and can be used to express the fixture design task and the previous design case .The fixture design case can be totally represented by different proper-ties .Secondly ,quantify the properties and get them valued according to certain methods .Then get the total similarity of two cases .Combined with the similarity evaluation algorithm of hierarchical search ,the case which has higher similarity with the design task is found out .Through correction of the similar case ,we can implement the new fixture design tasks rapidly .