The Research And Application Of The Knowledge Representation Based On The Mechanical Field

Human beings are now in a great new era of information technology,with the popularization and development of the computer,the human society gradually turns to information society which also be called knowledge society from industrial society. Machinery closely interrelated to our lives is the pillar of the country economy. The experience of the expert is essential in the mechanical field,which may directly affect the acceptability of the results of operating.The knowledge of the mechanical field is multifarious,diverse,uncertain and highly demands the experience.In order to improve the quality of the operations and the efficiency of the mechanical field,it is necessary to combine the Knowledge Engineering with the mechanical field so that it can adapt to the rapid development of the information era. The knowledge representation of the Knowledge engineering which is the foundation and premise to build a intelligent system has been the key object in recent years study.Through the research on the operating process and characteristics of the mechanical field, summarized the characteristics of the knowledge refered to the field.Thereby extracted and discussed the hierarchical classification of the related knowledge.Put forward the conceptions of Credibility, Importance degree, Relationship credibility, Strength of the inheritance,Threshold aiming at the charateristics obtained before.Introduced part of the symbolic logic operators in order to enrich the representation.Designed the operator equations and the algorithm of the threshold.Initially formed the universal mechanical version of Knowledge Representation aimed to make it more accommodative to the application,Finally, Verified the new version of knowledge representation via the part of the speed reducer design instance.