The invention belongs to the technical field of
assembly tolerance specification design and computer-aided
tolerance design (CAT), and particularly relates to an
assembly tolerance specification
intelligent design method based on Ontology. The method specifically comprises the following steps: (1) constructing a body of an
assembly tolerance specification; (2) establishing an SWRL
reasoning rule of an assembly tolerance specification; (3) extracting related tolerance information of the assembly tolerance specification; (4) constructing an assembly tolerance specification instantiation ontologymodel; and (5) combining the Jess
inference machine with the SWRL rule, inferring the assembly tolerance specification, and outputting a result
inference result. An ontology reasoning
knowledge framework for the assembly tolerance specification
domain knowledge is constructed by utilizing an ontology, and an assembly tolerance specification
knowledge base is expanded according to dominant domainknowledge reasoning
implicit knowledge. In combination with a
semantic network rule language rule base, reasoning design parameters of assembly tolerance specifications for specific design of geometric products and using environmental conditions. The consistency knowledge description framework of the assembly tolerance specification can be provided, so that a computer can automatically select appropriate tolerance principles, tolerance types, size parameters and the like according to shape and size parameters of geometric products, and a quick and
effective method is provided for
intelligent design of the assembly tolerance specification.