Projection Pursuit Based Case Retrieval Model Considering Uncertainty of Product Attributes in Configuration Design for Product Family
-
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。Abstract: 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.
-
Key words:
- product family /
- configuration design /
- uncertainty /
- case retrieval /
- projection pursuit(PP)
-
[1] 付相君,李善平.产品的相似性推理:一种描述逻辑的方法[J].计算机辅助设计与图形学学报,2006,18(4):568～573 [2] 赵燕伟,苏楠,张峰等.基于可拓实例推理的产品族配置设计方法[J].机械工程学报,2010,46(10):146～154 [3] 朱华.基于模糊层次分析法的产品族评价模型与算法研究[J].机械科学与技术,2009,28(8):1043～1046 [4] 魏一鸣,金菊良,杨存建等.洪水灾害风险管理理论[M].北京:科学出版社,2002 [5] 唐启义,冯光明.DPS数据处理系统[M].北京:科学出版社,2007 [6] 徐梓荣,张亦飞.产品族配置设计的MC-SPA案例检索方法[D].国家海洋局第二海洋研究所,2010 -
点击查看大图
计量
- 文章访问数: 127
- HTML全文浏览量: 18
- PDF下载量: 5
- 被引次数: 0
下载:
