可扩展的燃气轮机仿真对象模型

应用面向对象的分析与设计方法进行可扩展的燃气轮机仿真建模研究。将燃气轮机仿真的各种计算任务概括为部件计算、流路计算和系统状态计算三个层次，并在此基础上提出节点－连接器－部件模型，构造了一个部件模型、工质流程及仿真算法均可扩展的仿真类属框架，并通过一个三轴燃气轮机的容积效应法仿真验证了该模型的有效性和可扩展能力。

AN EXTENDABLE OBJECT MODEL FOR GAS TURBINE SIMULATION

A generalized gas turbine simulation software must be not only capable of extending to new engine components and configuration,but also able to shift among different simulation algorithms.For this purpose the object-oriented analysis and design method is applied and the Unified Modeling Language (UML) is used.Different computational tasks of simulation are categorized and summarized into a 3-layer generalization:component calculation,gas path calculation,and system state calculation.Based on this generalization,a class framework is proposed and a Node-Connector-Component model is presented and analyzed.New components,gas path algorithms,and numerical integration methods can be extended from the appropriate base classes in the framework. New engine configuration can be realized by connecting nodes in different components.A 3-shaft gas turbine engine's dynamic performance is simulated using an innovative gas path calculation method,the plenum algorithm.The extendability of the model is fully verified.