典型文献
Regularities between kinematic and aerodynamic characteristics of flexible membrane wing
文献摘要：
The kinematic characteristics of flexible membrane wing have vital influences on its aero-dynamic characteristics.To deeply explore the regularities between them,time-resolved aerody-namic forces and deformations at different aeroelastic parameters and angles of attack(α)were measured synchronously by wind tunnel experiments.The membrane motion can be mainly divided into two states at α＞0° with various lift-enhancement regularities:Deformed-Steady State(DSS)at pre-stall,and Dynamic Balance State(DBS)at around stall and post-stall.Besides,the mean camber,maximum vibration amplitude,and lift coefficient almost reach their maxima simultane-ously within the DBS region.By introducing momentum coefficient Cμof membrane vibration,pos-itive correlation among amplitude,momentum and lift is successfully established,and the lift-enhancement mechanism of membrane vibration is revealed.Moreover,it is newly and surprisingly found that at different vibration modes,the maximum vibration amplitude and root mean square of vibration velocity present positive and linear correlation with different slopes,and their chordwise locations are basically consistent.Therefore,novel ideas for active control of flexible wing are pro-posed:by controlling the vibration amplitude,frequency,and mode,while selecting the specific chordwise locations for intensive excitation,Cμ can be efficiently increased.Ultimately,the aerody-namic performance will be improved.
文献关键词：
中图分类号：
作者姓名：
Xi HE;Qinfeng GUO;Jinjun WANG
作者机构：
Fluid Mechanics Key Laboratory of Education Ministry,Beihang University,Beijing 100083,China
文献出处：
引用格式：
[1]Xi HE;Qinfeng GUO;Jinjun WANG-.Regularities between kinematic and aerodynamic characteristics of flexible membrane wing)[J].中国航空学报（英文版）,2022(11):209-218
A类：
Regularities,aeroelastic,Deformed,chordwise
B类：
between,kinematic,aerodynamic,characteristics,flexible,membrane,wing,have,vital,influences,its,To,deeply,explore,regularities,them,resolved,forces,deformations,different,parameters,angles,attack,were,measured,synchronously,by,wind,tunnel,experiments,motion,can,mainly,divided,into,two,states,various,lift,enhancement,Steady,State,DSS,stall,Dynamic,Balance,DBS,around,post,Besides,mean,camber,maximum,vibration,amplitude,coefficient,almost,reach,their,maxima,simultane,within,region,By,introducing,momentum,correlation,among,successfully,established,mechanism,revealed,Moreover,newly,surprisingly,found,that,modes,root,square,velocity,present,positive,linear,slopes,locations,basically,consistent,Therefore,novel,ideas,active,posed,controlling,frequency,while,selecting,specific,intensive,excitation,efficiently,increased,Ultimately,performance,will,improved
AB值：
0.526569
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
