Seamless morphing trailing edge flaps for UAS-S45 using high-fidelity aerodynamic optimization  

作　　者：Mir Hossein NEGAHBAN Musavir BASHIR Victor TRAISNEL Ruxandra Mihaela BOTEZ 

机构地区：[1]LARCASE Laboratory of Applied Research in Active Controls,Avionics and Aeroservoelasticity,Ecole de Technologie Superieure,Universite du Quebec,Montreal H3C1K3,Canada

出　　处：《Chinese Journal of Aeronautics》2024年第2期12-29,共18页中国航空学报（英文版）

基　　金：the Hydra Technologies team in Mexico;the CREATEUTILI Program for their financial support。

摘　　要：The seamless trailing edge morphing flap is investigated using a high-fidelity steady-state aerodynamic shape optimization to determine its optimum configuration for different flight conditions,including climb,cruise,and gliding descent.A comparative study is also conducted between a wing equipped with morphing flap and a wing with conventional hinged flap.The optimization is performed by specifying a certain objective function and the flight performance goal for each flight condition.Increasing the climb rate,extending the flight range and endurance in cruise,and decreasing the descend rate,are the flight performance goals covered in this study.Various optimum configurations were found for the morphing wing by determining the optimum morphing flap deflection for each flight condition,based on its objective function,each of which performed better than that of the baseline wing.It was shown that by using optimum configuration for the morphing wing in climb condition,the required power could be reduced by up to 3.8%and climb rate increases by 6.13%.The comparative study also revealed that the morphing wing enhances aerodynamic efficiency by up to 17.8%and extends the laminar flow.Finally,the optimum configuration for the gliding descent brought about a 43%reduction in the descent rate.

关 键 词：Seamless morphing trailing edge flap Aerodynamic optimization Gradient-based optimiza-tion Climb flight condition Gliding descent Flight range Endurance 

分 类 号：V279[航空宇航科学与技术—飞行器设计]