开发内燃机摩擦学智能 CAD系统 ,除建立符号模型、数学模型之外 ,需要建立人工神经网络模型 ,将大量隐含于数值分析和试验数据中的隐性知识转化成显性的设计规则。文中提出了智能 CAD系统中人工神经网络的应用模型 ,并应用于内燃机活塞功耗的分析和规则提取 In order to develop the tribology intelligent CAD system of internal combustion engine, besides establishing symbol model and mathematical model, artificial neural network model needs to be established to transform a large number of tacit knowledge implicit in numerical analysis and experimental data into explicit design rules. In this paper, an application model of artificial neural network in intelligent CAD system is proposed and applied to analysis and rule extraction of internal combustion engine piston power