虚拟样机多学科设计优化问题建模研究

Research of Virtual Prototype MDO Problem Modeling

针对虚拟样机多学科设计优化框架对多学科问题描述的需求,对多学科设计优化问题的建模方法进行研究,提出用XML语言对多学科优化问题模型进行描述。通过分析多学科设计优化问题模型特点,得出多学科设计优化问题模型及其子模型的形式化描述,并给出其中一个主要模型的XMLSchema描述规范。开发了通用多学科设计优化问题建模工具,用于基于Web的虚拟样机多学科设计优化框架中的求解问题模型的输入,并给出某型导弹多学科设计优化问题的建模实例。实践表明建模方法和建模工具方便可行。

According to the requirement of Multidisciplinary Design Optimization (MDO) Problem description in Virtual Prototype Multidisciplinary Design Optimization Framework (VPMDOF), the Extensible Markup Language (XML) was used to describe MDO problem models. Characteristics of MDO problem models were analyzed, and formalized descriptions of MDO problem models and sub models were proposed, and XML Schema description specification of a main model was provided. A general MDO modeling tool was developed to input the problem model to a web-based MDO infrastructure. A case study for MDO modeling of some type of missile was proposed. Application demonstrates that the modeling method is accurate and feasible and the modeling tool is convenient.