【摘要】 基于特性方程建立了一种能够达到设计精度要求的快速简单的涡轮数学模型,用Modelica语言和Dymola编译器实现了涡轮的建模和性能仿真。通过一个发动机系统级模型的仿真实验,验证了涡轮模型的有效性。结果表明;采用建立的性能仿真数学模型能够模拟涡轮性能,并能够实现非设计转速小流量工况下的性能仿真;建立的涡轮级模块具有典型性、独立性、通用性和可连接性,能够满足快速搭建航空动力系统的系统级动态模型的需要。图6参6更多还原

【Abstract】 A rapid and simple mathematical model for turbines, which is based on the characteristic equations and is able to attain design precision, has been developed. The computer language Modelica and the editor Dymola were used for programming the models and also for simulating turbine performance. By a model simulation of an engine on system’s level the effectiveness of the turbine model was verified. Results manifest that the formulated mathematical model can properly simulate turbine performance even in off-design modes of operation and at reduced flow. The composed turbine stage modules are distinguished by their typicality their independence, generality and link-up ability. They can meet the requirement for rapidly establishing dynamic models of aircraft power systems. Figs6 and refs 6更多还原