摘要
为实现数字电子调节器研制过程中的半物理仿真,以发动机为建模对象,根据发动机的气动布局、各部件几何参数及由试验得到的部件特性,对每个部件建立了集总参数的气动热力学模型,并用VC++语言实现。在建类时,充分考虑了各部件之间的独立性,及流入/流出部件的热力学、气动力学等参数的相关性,确保部件模型既能真实反映发动机部件的工作状况,又能有效地连接起来,得到可应用于发动机过渡态过程计算的整机模型。建立了用户友好的操作界面,计算结果表明该平台有很高的效率和精度。
In order to fulfill the semi-physical test of a digital engine controller, this paper develops aero-thermodynamic models of the engine’s components using VC＋＋ language according to the engine’s aerodynamic arrangement, the geometry and the component’s test characteristics. Thorough consideration is given to the independency of each component and the interaction of aero-thermodynamic parameters of flow-path components in process of constructing classes, to the extent that the component model can represent the real status of the engine working in transient process calculation as well as can be easily connected. Friendly user interface is developed. The simulation results show that the platform has good efficiency and precision.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第7期257-259,共3页
Computer Engineering
关键词
航空发动机
数值仿真
过渡态计算
aero engine
numerical simulation
transient process calculation
