摘要
燃气涡轮的传统仿真方法有很多种,但是一般过于依赖样机,应用范围比较小,为此导出一种通用的仿真方法。就是在对燃气涡轮典型特性图进行合理缩放的基础上,结合物理建模语言Modelica面向对象、非因果联系以及多领域仿真等特点,建立了燃气涡轮变比热容计算的数学模型。进一步地,通过容积法,编制了通用的模块化的仿真程序。在此基础上,搭建单轴燃气涡轮发动机模型,并在Dymola平台上对其进行启动、加速和减速等动态过程仿真,得到合理的结果,证明了该方法的可行性,通用性。
There are many methods for the traditional system simulation of gas turbine. Because they are dependent on the samples and have small application fields ,a common simulation way is introduced in this paper. According to the representative performance maps scaling, a mathematical model for calculating variable specific heat of the gas turbine is given. Meanwhile the new object - oriented , multi - domain and non - casual language——Modelica is used to build the extensible simulation libraries of gas turbine. On the base of the volume modeling method and simulation libraries,the single spool gas turbine is simulated on the plafform——Dymola. The rational simulation results in the process of start - up , accelerating and decelerating are obtained and proved to be reasonable.
出处
《计算机仿真》
CSCD
2007年第1期58-62,共5页
Computer Simulation
关键词
典型特性图
燃气涡轮
变比热容
容积建模法
Representative performance maps
Gas turbine
Variable specific heat
Volume modeling method
