Abstract
Withtherapiddevelopmentofunmannedaircrafttechnology,fixed-wingunmanned
aircrafthavemadeitdifficulttomeetthedemandformulti-missionadaptabilityincomplex
environments.Folding-wingunmannedaircrafthavebeengraduallyappliedtovariousfields,
especiallyinthemilitaryfield,duetotheiruniqueadvantagesofportability,concealment,and
remotecontrol,whichcangreatlyreducecasualtiesandstriketargetsquicklyandaccurately.
Unmannedaerialvehicleswillbeusedforaerialtargets,andgraduallydevelopintohigh-tech
armeddevicesthatcanachievevariousfunctionssuchasdetection,interference,andshooting.
Theminiaturization,intelligence,systematization,andhighspeedandlongflighttimeofUAVs
willbethefuturedevelopmenttrend.Atpresent,therearemorestudiesonthefolding
mechanismathomeandabroad,andthedevelopmentofUAVstendstobemoreandmore
diversifiedinthefoldingmethod,intelligentinthefoldingmechanism,andinexpensiveinthe
productioncost.Inthefuture,improvingthereliabilityofthefoldingmechanismofUAVsand
reducingthemanufacturingcostwillbethetoppriorityforthedevelopmentofUAVsindustry,
whiletheunfoldingmodeofUAVsfoldingwingandtheinnovativedesignofthefolding
mechanismwillbecomethekeytosolvetheaboveproblems.Therefore,thedevelopmentof
lightweight,low-cost,andhigh-reliabilityfoldingmechanismtechnologyhasaverybroad
researchprospect.Inthispaper,wecarryoutresearchontheunfoldingmode,folding
mechanism,andaerodynamiccharacteristicsoffoldedwingsforUAVs.
Aimingatthecharacteristicsoftheorthogonalbiaxialfoldingwingmechanism,wecontrol
theunfoldingtimesequenceofthefoldingwinganddesignavarietyofunfoldingmodesfor
thefoldingwingofth