摘要
设计开发新的航空发动机是一项复杂耗时的工程,而计算机仿真是一种有效的解决办法,因此开发比较通用的仿真模型已成为一种发展趋势。本文利用模块化建模的方法,把航空燃气涡轮分为流动模块和容积模块两部分,并采用新型仿真软件Dymola/Modelica编制了相关仿真程序库。该模型库具有层次化的结构,以及可扩展、标准化的特点。以涡轮为例建立了可扩展的航空燃气涡轮程序库,并利用该程序库与其它模型库结合,搭建了一个带开关磁阻电机的混合排气航空发动机模型,得到了合理的仿真结果,验证了该方法的可行性及推广应用价值。
According to modular modeling means, the gas turbine is divided into two parts: the flow model and the volume model. The flow (model) is the res1ult of a modeling abstraction, where the volume is neglected. The volume model mainly indicates duct connecting. It can be thought that storages of the mass and the energy are modeled in the control volume, whereas the flows of the mass and the energy are modeled in the flow model. In order to get simulation models, the Dymola Modelica is introduced to program models and the Modelica is an object-oriented and non-casual language for modeling of the larger, multi-domain system. In the paper, the aircraft gas turbine models are programmed and the extensible gas turbine libraries are constructed based on the Dymola Modelica. On the basis of gas turbine models and other models, a double tools turbofan engine with switch reluctance generator model is constructed. The rational simulating results are obtained and the method is verified to be reasonable. The developed simulation tools based on the Dymola Modelica can be used in other power systems
出处
《热力透平》
2004年第3期190-194,共5页
Thermal Turbine
基金
上海交通大学和美国联合技术公司技术中心(UTRC)共同资助
