IMECH-IR  > 流固耦合系统力学重点实验室
Alternative TitleGust alleviation active control based on CFD reduced-order models
聂雪媛; 杨国伟
Source Publication航空学报
Other AbstractIn flight,aircraft suffers atmospheric turbulence and the flight quality degrades.Gust load alleviation is an important technique for improving the performance of aircraft.Most of the existing gust response analysis focuses on discrete gust while study on continuous gust attracts little attention.The continuous turbulence time domain signals can be obtained with the shaping filter.In transonic regime,computational fluid dynamics(CFD)- based gust loads reduced-order models(ROM)in the state-space form are built by the system identification method.Furthermore,to design a feasible controller,the balanced truncation approach is used to reduce the model order.Model predictive control(MPC)algorithm is adopted to control the deflection of the control surface so that gust load alleviation is realized.The AGARD445.6wing configuration is used as a numerical example to demonstrate the present gust ROM methodology and alleviation effects.It has been shown that the gust ROM with MPC law can suppress the wing root bending moment effectively;meanwhile,the deflection of the control surface can satisfy the hard constrain.
Keyword阵风减缓控制 降阶模型 气动弹性 跨声速 大气紊流 模型预测控制
Indexed ByEI ; CSCD
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GB/T 7714
聂雪媛,杨国伟. 基于CFD降阶模型的阵风减缓主动控制研究[J]. 航空学报,2015,36(4):1103-1111.
APA 聂雪媛,&杨国伟.(2015).基于CFD降阶模型的阵风减缓主动控制研究.航空学报,36(4),1103-1111.
MLA 聂雪媛,et al."基于CFD降阶模型的阵风减缓主动控制研究".航空学报 36.4(2015):1103-1111.
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