摘要
以气垫船用三轴燃气轮机为仿真对象,建立高低压轴及动力输出轴的转动微分方程。采用以非稳态工况为小偏差线性化起点的方法进行微分方程的求解,每一步都是以前一步达到的非稳态工况为起始零点,不断变换所有微分方程中的偏微分系数。按照上述方法进行SIMULINK建模仿真,分析了在气垫船行使过程中,当变距螺旋桨螺距角变化时高低压轴和动力输出轴转速的响应情况。
This paper established a series of mathematical equations of the three - spool gas turbine propulsion system of hovercraft. According to these equations, it makes up a dynamic simulation program under SIMULINK. This program is different from the traditional ones by using the inconstant coefficients to make the results more reasonable. By using this program, we get the response of the three spools when the propeller pitch is changed.
出处
《燃气轮机技术》
2006年第3期37-39,47,共4页
Gas Turbine Technology
关键词
三轴燃气轮机
气垫船
动态仿真
three- spool gas turbine
hovercraft
dynamic simulation
