An Ontology-Based Knowledge Base For Mechanical Features

The knowledge presentation based on Ontology is one of hot topics in knowledge presentation domain. Ontology mainly describe conceptions and the relationship of them, according the relationship, the semantic of conceptions can be presented successfully. This paper presents a new kind of comceptual knowledge base of features. This knowledge base plays a basal role in the process of parts cluster.At the first, the feature technology of manufacturing is introduced, then, we divide the features into several clusters and distil the relationship of features. All of above are prepared for the following work.We integrate and share domain knowledge with Ontologies, at the same time, the method of constructing the domain Ontologies has being proposed in this paper, at last we provide some formula to evaluate the domain Ontylogies.In this paper, the abstract conceptions of features being dealed with as features classes, and the concret conceptions of featrures benting dealed with as freatures instances, so the information of parts can be presented in a hierarchical structure. As a result, we organize the loose knowledge in a structure way.At the end of the paper, ontology of rotational parts is build with Protégé2000, this ontology converse the features'information from original format into conceptual format.The propesed knowledge base of features impulse the CIMS to be intelligentized.