Design of Knowledge Base for Crawler Combine Harvester Transmission System

Crawler combine harvester has many advantages，such as good terrain ability，superior adaptability over soft and moist operating environments，and well lateral stability.During the development of crawler combine harvester，as its main component，the design on transmission system is very important.Firstly，based on knowledge engineering，a suitable method for acquiring and classifying design knowledge of transmission system in crawler combine harvester was put forward.Secondly，according to the characteristics of design knowledge for transmission system，it was expressed applying generative knowledge representation and frame knowledge representation respectively.Thirdly，design knowledge was classified by formula type，parameters type，selection type，table type and diagram type.Following the classification of the knowledge，a storage method for knowledge was put forward.And then，design knowledge base of transmission system in crawler combine harvester was established，and knowledge management system was developed by Visual Studio 2008 platform.Applying designed knowledge base，design and development staff could design a new type transmission system of crawler combine harvester rapidly，shorten design time，cut design cost，and improve design efficiency.