In order to improve the real-time performance of aero-engine component-level models, an automatic fast positioning interpolation method is proposed. Based on the maximum parameter slope, this method can automatically determine the interpolation cut in point, change the disadvantage of low efficiency of traditional sequential interpolation from the starting point, effectively reduce the interpolation interval, thus greatly improving the efficiency of interpolation. The method is applied to the calculation of gas thermodynamic parameters and the interpolation of the characteristic of rotating parts ,so as to ameliorate the real-time performance of the single-stage flow path calculation of the component-level model. Simulation results show that, compared with the traditional method, the method proposed in this paper improves the fan characteristic calculation efficiency by 47.5%, reduces the time of single complete flow calculation by 74.3% when the dynamic and steady-state accuracy changes are less than 0.4%, which greatly improves the real-time performance of the component-level model.

中文翻译：

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一种提高航空发动机零部件级模型实时性能的新方法

为了提高航空发动机零件级模型的实时性，提出了一种自动快速定位插值方法。该方法基于最大参数斜率，可以自动确定插补切入点，从起点改变了传统顺序插补效率低的弊端，有效地减小了插补间隔，从而大大提高了插补效率。该方法应用于气体热力学参数的计算和旋转零件特性的插值，以改善构件级模型的单级流道计算的实时性。仿真结果表明，与传统方法相比，