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针对高空风车条件下航空发动机起动性能估算问题,给出了用线参数模型描述发动机风车起动非线性过程的一般形式,利用约简遗传规划算法进行模型结构选择的思路,建立了基于约简遗传规划的航空发动机起动性能计算模型。以某型涡喷发动机为对象,在给定条件下,运用所建立的模型对该型发动机的风车起动过程进行了模拟,得到了起动性能的仿真结果。将仿真结果与试验数据和已有的部件级起动模型仿真结果进行了对比,验证了方法的正确性、可行性。
Aiming at the estimation of the starting performance of aeroengines under the condition of the high altitude windmill, the general form of describing the non-linear process of the engine windmill using the linear parameter model is given. The idea of selecting the model structure by using the reduced genetic programming algorithm is given. Aeroengine Starting Performance Calculation Model. Taking a certain type of turbojet engine as an example, the wind turbine starting process of this type of engine is simulated under the given conditions by using the established model, and the simulation results of starting performance are obtained. The simulation results are compared with the experimental data and the simulation results of the existing component-level starting model to verify the correctness and feasibility of the method.