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采用修正因子方法建立自适应仿真模型,运用改进的共轭梯度算法求解非线性规划问题,依据发动机台架试车和空中试飞测量数据,对发动机仿真模型的部件特性参数进行校正,使模型的计算输出与试验测量数据吻合。应用本文方法对某型双转子加力涡喷发动机仿真模型进行校正,获得了满意的仿真精度。
An adaptive simulation model is established by using the correction factor method. An improved conjugate gradient algorithm is used to solve the nonlinear programming problem. Based on the engine bench test and the flight test data, the component characteristic parameters of the engine simulation model are corrected so that the calculated output In agreement with the experimental measurement data. The method of this paper is used to correct the simulation model of a twin turbo-charged turbojet engine, and the satisfactory simulation accuracy is obtained.