基于案例推理和神经元网络的桥梁知识的复用.pdf

33 23 2007 12 Vol.33 No.23 Computer Engineering December 2007 ·· 2007 A TU2 ( 100084) SQL Server 2005 Reuse of Bridge Knowledge Based on Case Reasoning and Neural Network PENG Wei-bing, REN Ai-zhu, XU Feng (Department of Civil Engineering, Tsinghua University, Beijing 100084) AbstractAn available method of converting standard drawings into reusable bridge design case is developed. With this method, data object of design knowledge, which integrates both geometric descriptions and non-geometric description, is established with object-oriented technology. At the same time, bridge data are divided into several levels for better comprehensibility and lower programming complication. Design case is stored into database with SQL server 2005. Similarity definition of bridge case is carried out by analyzing bridge design knowledge in order to get relative similar design cases. Case intelligent adaptation technology is created by neural network for new bridge design, and so a bridge model, driven with knowledge and parameters, is achieved. Key wordsbridge structure design; knowledge reuse; case reasoning; artificial neural network 1 2003 CAD [56]