| 程 龙，张海波，陈 铭.基于RBF模型和AMGA算法的低红外涡扇
发动机优化设计[J].航空发动机,2024,50(6):67-73 |
| 基于RBF模型和AMGA算法的低红外涡扇
发动机优化设计 |
| Optimization Design of Low Infrared Turbofan Engine Based on RBF Model and AMGA Algorithm |
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| DOI： |
| 中文关键词: 涡扇发动机 红外辐射 径向基函数模型 自适应变异遗传算法 优化设计 |
| 英文关键词:turbofan engine infrared radiation Radial Basis Function model Adaptive Mutation Genetic Algorithm optimization design |
| 基金项目:国家级研究项目、先进航空动力创新工作项目（HKCX2020-02-022，HKCX2022-01-026-03）资助 |
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| 摘要点击次数: 137 |
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| 中文摘要: |
| 引气冷却等红外抑制措施对发动机总体性能影响较大，而目前在发动机总体设计阶段并没有兼顾红外隐身措施的影
响。为了发展低红外涡扇发动机的总体设计方法，建立了带中心锥气膜冷却的小涵道比涡扇发动机径向基函数（RBF）模型，并采
用自适应变异遗传（AMGA）算法进行了优化设计。根据设计经验，确定低红外涡扇发动机的优化设计方案。在低红外涡扇发动
机部件级模型中获得建立代理模型的数据，采用高斯函数作为RBF算法建立代理模型。结果表明：对比传统Kriging算法建立的
模型，RBF模型的精度更高；在RBF模型的基础上，采用AMGA算法进行优化设计，与基准发动机相比，最优解对应的发动机单位
推力减小1.03%、单位耗油率降低0.86%、正尾向红外辐射降低47.75%，达到较好红外抑制的效果。 |
| 英文摘要: |
| Infrared suppression measures, such as bleed air cooling, have a significant impact on overall engine performance.
However, the influence of infrared stealth measures is often not taken into account during the preliminary engine design stage. In order to
develop a comprehensive design method for low infrared turbofan engines, a radial basis function (RBF) model for a low bypass ratio
turbofan engine with central cone film cooling was established, and the adaptive mutation genetic algorithm (AMGA) was used for optimiza?
tion design. Based on design experiences, the optimal design scheme for the low infrared turbofan engine was determined. The data for the
surrogate model was obtained from the component level models of the low infrared turbofan engine, and Gaussian functions were used to
establish the RBF algorithm for creating the surrogate model. The results indicate that the accuracy of the RBF model surpasses that of
traditional Kriging algorithms. Based on the RBF model, the AMGA algorithm was used for optimization. Compared with benchmark
engines, the optimal solution resulted in a 1.03% reduction in specific thrust, a 0.86% decrease in specific fuel consumption, and a remark?
able 47.75% reduction in tail infrared radiation, achieving superior infrared suppression effects. |
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