用新型神经网络精准建模飞机气动特性,提升稳定性与抗噪能力。
Capturing Aerodynamic Characteristics of ATTAS Aircraft with Evolving Intelligent System
- 基于增量学习的量子模糊神经网络,自动构建多个线性子模型。
- 在有限和大量数据下均表现更优,规则数少于传统方法。
- 适合航空工程中的气动建模与飞行控制分析,抗干扰强。
精确建模气动系数对理解与优化现代飞机性能至关重要。本文提出将进化型二型量子模糊神经网络(eT2QFNN)应用于ATTAS飞机的气动系数建模,以表征其气动特性。eT2QFNN通过规则结构与增量学习策略,以多线性子模型表达非线性飞机模型,而非传统批处理方式。其量子隶属函数增强了对不确定性与数据噪声的鲁棒性,并具备自动规则学习与参数调优能力。在利用ATTAS飞行数据估计气动系数时,分别在大数据和小数据条件下进行训练。结果表明,eT2QFNN的建模性能优于基准方法。此外,eT2QFNN所需规则数少于一型模糊系统。通过应用Delta方法,进一步分析了飞机的稳定性和控制导数,验证了该方法在表征气动系数方面的优越性。
原文摘要 · Abstract (English)
Accurate modeling of aerodynamic coefficients is crucial for understanding and optimizing the performance of modern aircraft systems. This paper presents the novel deployment of an Evolving Type-2 Quantum Fuzzy Neural Network (eT2QFNN) for modeling the aerodynamic coefficients of the ATTAS aircraft to express the aerodynamic characteristics. eT2QFNN can represent the nonlinear aircraft model by creating multiple linear submodels with its rule-based structure through an incremental learning strategy rather than a traditional batch learning approach. Moreover, it enhances robustness to uncertainties and data noise through its quantum membership functions, as well as its automatic rule-learning and parameter-tuning capabilities. During the estimation of the aerodynamic coefficients via the flight data of the ATTAS, two different studies are conducted in the training phase: one with a large amount of data and the other with a limited amount of data. The results show that the modeling performance of the eT2QFNN is superior in comparison to baseline counterparts. Furthermore, eT2QFNN estimated the aerodynamic model with fewer rules compared to Type-1 fuzzy counterparts. In addition, by applying the Delta method to the proposed approach, the stability and control derivatives of the aircraft are analyzed. The results prove the superiority of the proposed eT2QFNN in representing aerodynamic coefficients.
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