Cov ntaub ntawv sib xyaw tau dhau los ua cov ntaub ntawv zoo tshaj plaws rau kev tsim cov dav hlau uas tsis tshua muaj siab vim lawv lub teeb yuag, siab zog, corrosion kuj thiab plasticity.Nyob rau hauv lub sijhawm no ntawm kev lag luam qis qis uas nrhiav kev ua haujlwm zoo, roj teeb lub neej thiab kev tiv thaiv ib puag ncig, kev siv cov ntaub ntawv sib xyaw tsis yog tsuas yog cuam tshuam rau kev ua haujlwm thiab kev nyab xeeb ntawm lub dav hlau, tab sis kuj yog tus yuam sij rau kev txhim kho tag nrho kev lag luam.
Carbon fiber ntaucov khoom sib xyaw
Vim tias nws lub teeb yuag, siab zog, corrosion kuj thiab lwm yam ntxwv, carbon fiber tau dhau los ua cov khoom siv zoo tshaj plaws rau kev tsim cov dav hlau qis.Nws tuaj yeem tsis tsuas yog txo qhov hnyav ntawm lub dav hlau, tab sis kuj txhim kho kev ua tau zoo thiab cov txiaj ntsig kev lag luam, thiab dhau los ua ib qho kev hloov zoo rau cov khoom siv hlau tsoos.Ntau tshaj 90% ntawm cov ntaub ntawv sib xyaw hauv skycars yog carbon fiber, thiab qhov seem ntawm 10% yog siv cov iav fiber ntau. Cheebtsam thiab propulsion systems, accounting txog li 75-80%, thaum nyob rau hauv daim ntawv thov xws li kab teeb thiab lub rooj zaum account rau 12-14%, thiab roj teeb systems thiab avionics account rau 8-12%.
Fiber ntauiav composite khoom
Fiberglass reinforced yas (GFRP), nrog nws cov corrosion kuj, siab thiab tsis kub tsis kam, hluav taws xob tiv thaiv, nplaim hluav taws thiab cov yam ntxwv tiv thaiv kev laus, plays lub luag haujlwm tseem ceeb hauv kev tsim cov dav hlau qis xws li drones.Cov ntaub ntawv no yuav pab txo qhov hnyav ntawm lub dav hlau, nce lub load, txuag zog, thiab ua tiav ib qho zoo nkauj sab nrauv tsim.
Nyob rau hauv cov txheej txheem ntawm cov dav hlau uas tsis tshua muaj siab, fiberglass daim ntaub yog dav siv nyob rau hauv kev tsim cov khoom tseem ceeb xws li airframes, tis, thiab tails.Nws lub teeb yuag cov yam ntxwv pab txhim kho lub nkoj efficiency ntawm lub dav hlau thiab muab lub zog muaj zog thiab ruaj khov.
Rau cov khoom siv uas yuav tsum tau muaj qhov zoo tshaj plaws yoj permeability, xws li radomes thiab fairings, fiberglass composite cov ntaub ntawv feem ntau yog siv.Piv txwv li, high-altitude long-range UAV thiab US Air Force's RQ-4 "Global Hawk" uav siv carbon fiber composite cov ntaub ntawv rau lawv tis, tail, engine compartment thiab rear fuselage, thaum lub sij hawm kom meej meej transmissions ntawm fiberglass cov ntaub ntawv.
Fiberglass daim ntaub tuaj yeem siv los ua lub dav hlau fairings thiab qhov rais, uas tsis tsuas yog txhim kho lub ntsej muag thiab kev zoo nkauj ntawm lub dav hlau, tab sis kuj txhim khu kev nplij siab ntawm kev caij tsheb. Ib yam li ntawd, hauv kev tsim satellite, iav fiber ntau daim ntaub kuj tseem siv tau los tsim cov txheej txheem sab nrauv ntawm lub hnub ci vaj huam sib luag thiab kav hlau txais xov, yog li txhim kho cov tsos thiab kev ntseeg siab ntawm satellites.
Aramid fiber ntaucov khoom sib xyaw
Cov ntaub ntawv aramid honeycomb core khoom tsim nrog cov qauv hexagonal ntawm bionic ntuj honeycomb yog qhov muaj kev hwm rau nws lub zog tshwj xeeb, tshwj xeeb nruj thiab cov qauv kev ruaj ntseg. Tsis tas li ntawd, cov khoom no kuj muaj suab nrov zoo, rwb thaiv tsev kub thiab nplaim hluav taws, thiab cov pa taws thiab toxicity generated thaum combustion yog tsawg heev. Cov yam ntxwv no ua rau nws nyob ib qho chaw nyob rau hauv high-end daim ntaub ntawv ntawm aerospace thiab high-speed tsheb thauj mus los.
Txawm hais tias tus nqi ntawm aramid ntawv honeycomb core cov ntaub ntawv yog siab dua, nws feem ntau xaiv los ua cov khoom siv hnyav hnyav rau cov khoom siv high-end xws li aircraft, missiles, thiab satellites, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov khoom siv uas yuav tsum tau broadband yoj permeability thiab siab rigidity.
Cov txiaj ntsig sib sib zog nqus
Raws li cov khoom siv lub cev tseem ceeb, aramid ntawv ua lub luag haujlwm tseem ceeb hauv cov dav hlau qis qis qis xws li eVTOL, tshwj xeeb tshaj yog cov pa roj carbon fiber ntau honeycomb sandwich txheej.
Nyob rau hauv lub tshav pob ntawm unmanned aerial tsheb, Nomex honeycomb khoom (aramid daim ntawv) kuj yog lug siv, nws yog siv nyob rau hauv lub fuselage plhaub, tis daim tawv nqaij thiab ua ntug thiab lwm yam.
Lwm yamsandwich composite cov ntaub ntawv
Cov dav hlau qis qis, xws li cov tsheb tsis muaj neeg caij dav hlau, ntxiv rau kev siv cov khoom siv ntxiv xws li carbon fiber, iav fiber ntau thiab aramid fiber ntau hauv cov txheej txheem tsim khoom, cov khoom siv sandwich xws li honeycomb, zaj duab xis, ua npuas ncauj yas thiab ua npuas ncauj nplaum kuj tau siv dav.
Hauv kev xaiv cov khoom siv sandwich, feem ntau siv yog honeycomb sandwich (xws li ntawv honeycomb, Nomex honeycomb, thiab lwm yam), ntoo sandwich (xws li birch, paulownia, ntoo thuv, basswood, thiab lwm yam) thiab ua npuas ncauj sandwich (xws li polyurethane, polyvinyl chloride, polystyrene ua npuas ncauj, thiab lwm yam).
Cov qauv ua npuas ncauj tau siv dav hauv cov qauv ntawm UAV airframes vim nws cov yam ntxwv tsis muaj dej thiab ntab thiab cov cuab yeej siv tau zoo ntawm kev muaj peev xwm sau cov kab noj hniav ntawm cov qauv sab hauv ntawm lub tis thiab tus Tsov tus tw tis tag nrho.
Thaum tsim cov UAVs qis qis, honeycomb sandwich vaj huam sib luag feem ntau yog siv rau cov khoom uas tsis tshua muaj zog, cov duab tsis tu ncua, qhov chaw nkhaus loj thiab yooj yim rau nteg tawm, xws li pem hauv ntej tis stabilizing nto, ntsug tail stabilizing nto, tis stabilizing nto, thiab lwm yam Qhov chaw, thiab lwm yam, ua npuas ncauj sandwich vaj huam sib luag yog nyiam.Rau cov vaj huam sib luag uas xav tau lub zog siab dua, cov ntoo sandwich vaj huam sib luag yuav raug xaiv.Rau cov khoom uas yuav tsum tau muaj zog thiab siab tawv, xws li daim tawv nqaij, T-beam, L-beam, thiab lwm yam., cov qauv laminate feem ntau yog siv.Cov khoom siv ntawm cov khoom no yuav tsum tau preforming, thiab raws li qhov yuav tsum tau muaj zog, rsbending stiffness yuav tsum tau. tsim nyog cov khoom siv fiber ntau, cov khoom siv matrix, cov ntsiab lus fiber ntau thiab laminate, thiab tsim cov kab sib txawv, txheej txheej thiab txheej txheej, thiab kho los ntawm qhov sib txawv ntawm cov cua sov thiab cov kev kub ntxhov.
Post lub sij hawm: Nov-22-2024
