基于变精度模型的变外形飞行器弹道优化

Jianlei Wang, Xiaoyu Chen, Houquan Hong, Chunna Li, Chunlin Gong, Junxin Fu

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

Morphing aircraft can flexibly change its aerodynamic shape to adapt to the varying flight conditions during a flight. Compared with the traditional fixed shape aircraft, it has a very obvious advantage. This paper proposed a solution flow based on the multi-fidelity model for the morphing aircraft with morphing wings, and the optimal trajectory and morphing rules are studied. The angle of attack, Mach number, sweep angle and axial position of the morphing wing are defined as variables for generating training data for building the multi-fidelity Kriging model, which is used to predict the aerodynamic performance of the aircraft. Based on the hp-adaptive pseudospectral method, the model is used as aerodynamic input to establish the optimization process of morphing rules, and the trajectory optimization is carried out for the contrast fixed wing aircraft and morphing aircraft with the goal of minimum fuel consumption, respectively. The control parameters such as morphing parameters, angle of attack and engine control parameters are optimized simultaneously while meeting the flight mission requirements. The results show that the morphing aircraft has higher climbing and descending efficiency, and the optimal trajectory has obvious advantages. Moreover, the research flow proposed in this paper is universal, which can effectively reduce the CFD calculation cost and improve the efficiency of trajectory optimization of the variable shape vehicle.

投稿的翻译标题Trajectory optimization of morphing aircraft based on multi⁃fidelity model
源语言繁体中文
页(从-至)618-627
页数10
期刊Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
40
3
DOI
出版状态已出版 - 1 6月 2022

关键词

  • hp-adaptive pseudospectral method
  • morphing aircraft
  • morphing rules
  • multi-fidelity model
  • trajectory optimization

指纹

探究 '基于变精度模型的变外形飞行器弹道优化' 的科研主题。它们共同构成独一无二的指纹。

引用此