摘要
对产品族配置设计中产品属性不确定的案例推理问题进行了研究。以区间数表征带有不确定性的产品属性,通过随机内插多个确定值替代区间数,并对经过数量拓展的源案例和目标案例进行投影寻踪分析,得到最佳投影方向上的投影值。以投影值为基础进行案例检索,从而构建了能处理产品属性确定值和不确定值共存的投影寻踪案例检索模型。油锯配置设计实例应用表明,本模型案例检索灵敏度高,检索结果稳定可靠。
Aiming to coexisting certainty and uncertainty of product attributes in case retrieval for the product family configuration design,a case retrieval method based on Projection Pursuit（PP）is proposed.Firstly,the uncertainty of product attributes is characterized by interval numbers,then real values interpolated randomly within interval numbers are used to replace interval numbers.Therefore,the number of resource cases and target cases is enlarged.On the work mentioned above,Projection Pursuit is used to get the best projection values.By using the projection values,the case retrieval considering uncertainty of product attributes in configuration design for product family can be completed.Case study of chain saw verifies the proposed method is of usefulness and effectiveness.
出处
《机械科学与技术》
CSCD
北大核心
2012年第5期851-854,860,共5页
Mechanical Science and Technology for Aerospace Engineering
关键词
产品族
配置设计
不确定性
案例检索
投影寻踪法
product family
configuration design
uncertainty
case retrieval
projection pursuit（PP）
