为有效积累和重用航空橡塑密封结构案例中蕴含的知识，提出基于模型的定义(Model Based Definition，MBD)的航空橡塑密封结构案例库构建方法。首先，基于航空橡塑密封结构行业设计标准和MBD的三维建模与标注方法，建立基于MBD的航空橡塑密封结构案例内容框架和表示，通过SolidWorks MBD模块实现航空橡塑密封结构案例的MBD表示;然后，提取航空橡塑密封结构MBD案例表示中的几何特征和语义特征，设计"几何+语义"的案例检索算法;最后，开发的基于MBD的航空橡塑密封结构案例库原型系统及其应用表明，基于MBD的航空橡塑密封结构案例表示与检索实现了知识的积累和重用。
MBD-based case base construction for aviation elastomeric sealing structures
To accumulate and reuse the valuable knowledge in the aviation elastomeric seals structure design cases effectively,the method of MBD-based sealing structures case base construction was proposed.Firstly,the MBD based case content framework and representation of the aviation sealing structure were established based on the industry design standards of aviation elastomeric sealing structure and the 3D modeling and annotation of MBD,and the case representation was implemented by SolidWorks MBD module.Then,the geometric and semantic features from the MBD based case representation of sealing structures were extracted which were used to design case retrieval method.Finally,the MBD based case prototype system for aviation elastomeric sealing structure and its application show that the MBD based sealing structure case representation and retrieval have achieved knowledge accumulation and application.
Model Based Definiton(MBD)sealing structuregeometric featuresemantic featurecase base
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