【摘要】 根据变比热容原理建立了进口导叶可调的涡轴发动机部件级全包线数学模型;仿真研究了涡轴发动机的最大功率、最低油耗、最低涡轮前温度控制模式.仿真结果表明:建立的涡轴发动机数学模型具有较高的准确度;采用最大功率控制模式在整个包线范围内显著提高了涡轴发动机的功率;采用最低油耗控制模式保证功率基本不变,而耗油率明显降低;采用最低涡轮前温度控制模式,能够保证功率基本不变,动力涡轮前温度显著降低.更多还原

【Abstract】 A mathematical model of turbo shaft engine with variable inlet guide vanes was established according to the theory of variable specific heat.Numerical simulations had been conducted on the mathematical model.The performance seeking control(PCS) modes of variable geometry turbo shaft engine had been investigated.Simulation results show that the engine model works well with higher accuracy and the PSC control modes can significantly improve the performance of turbo shaft engine.更多还原