典型文献
Pressure-induced instability and its coupled aeroelasticity of inflated pillow
文献摘要：
A floating air weapon system (such as airborne floating mines) plays an important role in modern air defense operations.This paper focuses on aeroelastic characteristics of airborne floating mine named inflated pillow.Firstly,the dynamic deployable process of the pillow and characteris-tics of the local instability of the edge are studied,and the evolution mechanism of wrinkles and kinks is analyzed.Secondly,in the cruising stage,the fluid-structural-thermal coupling analysis is performed on the pillow,and the aeroelastic characteristics are studied.Thirdly,the shape-preserving effect of the inflated pillow during the "negative pressure" slow landing stage is evalu-ated.It is found that when the wind velocity is higher,the pillow has a collapsed instability (surface extrusion and contact),and when the wind velocity is lower,snap-through instability occurs.Finally,for the collapsed instability,a carbon fiber skeleton is added to discrete the large global collapsed fold into small local folds,thus achieving shape-preserving effect of pillow.For snap-through instability,the critical internal pressure and different shape evolution under different wind velocity are evaluated.Through the analysis of the mechanical mechanism and control of the struc-tural morphological evolution,it provides theoretical guidance for the application of the curved shell structure in floating air weapon system.
文献关键词：
中图分类号：
作者姓名：
Ji ZHANG;Changguo WANG;Jiaming GUO;Jiawei ZHANG
作者机构：
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments,Harbin Institute of Technology,Harbin 150080,China;Center for Composite Materials and Structures,Harbin Institute of Technology,Harbin 150001,China
文献出处：
引用格式：
[1]Ji ZHANG;Changguo WANG;Jiaming GUO;Jiawei ZHANG-.Pressure-induced instability and its coupled aeroelasticity of inflated pillow)[J].中国航空学报（英文版）,2022(02):1-7
A类：
aeroelasticity,pillow,aeroelastic,kinks,cruising
B类：
Pressure,induced,instability,its,coupled,inflated,floating,weapon,system,such,airborne,mines,plays,important,role,modern,defense,operations,This,paper,focuses,characteristics,named,Firstly,dynamic,deployable,process,local,edge,are,studied,evolution,mechanism,wrinkles,analyzed,Secondly,stage,fluid,structural,thermal,coupling,analysis,performed,Thirdly,shape,preserving,effect,during,negative,pressure,slow,landing,It,found,that,when,wind,velocity,higher,has,collapsed,surface,extrusion,contact,lower,snap,through,occurs,Finally,carbon,fiber,skeleton,added,discrete,large,global,into,small,folds,thus,achieving,For,critical,internal,different,under,evaluated,Through,mechanical,control,morphological,provides,theoretical,guidance,application,curved,shell,structure
AB值：
0.470408
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