Cov khoom siv portable tuaj yeem kho nrog UV-kho tau fiberglass / vinyl ester lossis carbon fiber / epoxy prepreg khaws cia ntawm chav tsev kub thiab cov khoom siv roj teeb uas siv los kho. #Insidemanufacturing #Infrastructure
UV-curable prepreg thaj kho Txawm hais tias cov pa roj carbon fiber ntau / epoxy prepreg kho tsim los ntawm Custom Technologies LLC rau infield composite choj ua pov thawj kom yooj yim thiab ceev, kev siv iav fiber reinforced UV-kho vinyl ester resin Prepreg tau tsim kom yooj yim dua. . Duab qhov chaw: Custom Technologies LLC
Modular deployable txuas hniav yog cov cuab yeej tseem ceeb rau kev ua tub rog tactical kev ua haujlwm thiab kev thauj mus los, nrog rau kev kho dua tshiab ntawm kev thauj mus los thaum muaj kev puas tsuaj ntuj tsim. Cov qauv sib xyaw tau raug kawm los txo qhov hnyav ntawm cov choj zoo li no, yog li txo lub nra ntawm cov tsheb thauj mus los thiab cov txheej txheem xa rov qab. Piv nrog cov hlau txuas hniav, cov khoom siv sib xyaw kuj muaj peev xwm ua kom muaj peev xwm ua kom muaj peev xwm thiab ua kom ntev kev pab cuam lub neej.
Advanced Modular Composite Choj (AMCB) yog ib qho piv txwv. Seemann Composites LLC (Gulfport, Mississippi, US) thiab Materials Sciences LLC (Horsham, PA, US) siv carbon fiber-reinforced epoxy laminates (Daim duab 1). ) Tsim thiab tsim kho). Txawm li cas los xij, lub peev xwm los kho cov qauv zoo li no hauv thaj teb tau yog ib qho teeb meem uas cuam tshuam rau kev siv cov khoom sib xyaw.
Daim duab 1 Composite choj, tseem ceeb infield cuab tam Advanced Modular Composite Choj (AMCB) tau tsim thiab tsim los ntawm Seemann Composites LLC thiab Materials Sciences LLC siv carbon fiber reinforced epoxy resin composites. Duab qhov chaw: Seeman Composites LLC (sab laug) thiab US Army (sab xis).
Hauv 2016, Custom Technologies LLC (Millersville, MD, US) tau txais US Army-funded Small Business Innovation Research (SBIR) Phase 1 grant los tsim kho txoj hauv kev uas tuaj yeem ua tiav ntawm qhov chaw los ntawm cov tub rog. Raws li txoj hauv kev no, theem thib ob ntawm SBIR qhov nyiaj pab tau muab rau xyoo 2018 los nthuav qhia cov khoom siv tshiab thiab cov khoom siv roj teeb, txawm tias lub thaj yog ua los ntawm ib tug novice yam tsis muaj kev cob qhia ua ntej, 90% lossis ntau dua ntawm cov qauv tuaj yeem rov qab los. zog. Kev ua tau zoo ntawm kev siv tshuab yog txiav txim siab los ntawm kev ua ntau yam kev tshuaj xyuas, kev xaiv cov khoom siv, kev tsim cov qauv thiab cov khoom siv kho tshuab, nrog rau kev kho me me thiab tag nrho.
Tus kws tshawb fawb tseem ceeb hauv ob theem SBIR yog Michael Bergen, tus tsim thiab tus thawj tswj hwm ntawm Custom Technologies LLC. Bergen so haujlwm los ntawm Carderock ntawm Naval Surface Warfare Center (NSWC) thiab tau ua haujlwm hauv Lub Tsev Haujlwm thiab Cov Khoom Siv rau 27 xyoo, uas nws tau tswj hwm kev txhim kho thiab siv cov thev naus laus zis sib xyaw hauv US Navy lub nkoj. Dr. Roger Crane tau koom nrog Custom Technologies hauv 2015 tom qab so haujlwm los ntawm US Navy xyoo 2011 thiab tau ua haujlwm rau 32 xyoo. Nws cov kws tshaj lij cov ntaub ntawv sib xyaw suav nrog kev tshaj tawm kev tshaj tawm thiab patents, suav nrog cov ncauj lus xws li cov khoom siv tshiab, kev tsim qauv, kev sib txuas, cov khoom siv sib xyaw ua ke, kev saib xyuas kev noj qab haus huv, thiab kev kho cov khoom sib xyaw.
Ob tus kws tshaj lij tau tsim cov txheej txheem tshwj xeeb uas siv cov ntaub ntawv sib xyaw los kho cov kab nrib pleb hauv aluminium superstructure ntawm Ticonderoga CG-47 chav kawm coj missile cruiser 5456. "Cov txheej txheem tau tsim los txo qhov kev loj hlob ntawm cov kab nrib pleb thiab ua lwm txoj hauv kev lag luam. rau kev hloov ntawm lub rooj tsavxwm platform ntawm 2 txog 4 lab nyiaj, "Bergen tau hais. "Yog li peb tau ua pov thawj tias peb paub yuav ua li cas kho kho sab nraum lub chaw kuaj mob thiab hauv qhov chaw pabcuam tiag tiag. Tab sis qhov kev sib tw yog tias tam sim no cov cuab yeej cuab tam txoj kev tub rog tsis ua tiav. Qhov kev xaiv yog kev sib koom ua ke duplex kho [yuav tsum nyob rau hauv qhov chaw puas, nplaum lub rooj tsavxwm mus rau sab saum toj] lossis tshem tawm cov khoom vaj khoom tsev los ntawm kev pabcuam rau kev kho vaj tsev-theem (D-level) kho. Vim tias yuav tsum tau kho D-theem, ntau cov cuab tam raug tso tseg. "
Nws tau hais ntxiv tias qhov xav tau yog ib txoj hauv kev uas tuaj yeem ua los ntawm cov tub rog uas tsis muaj kev paub txog cov khoom siv sib xyaw, tsuas yog siv cov khoom siv thiab cov phau ntawv tu. Peb lub hom phiaj yog ua kom cov txheej txheem yooj yim: nyeem phau ntawv, ntsuas qhov kev puas tsuaj thiab ua haujlwm kho. Peb tsis xav sib tov kua resins, vim qhov no yuav tsum tau ntsuas meej kom paub meej tias kev kho tiav. Peb kuj xav tau ib qho system uas tsis muaj cov khib nyiab pov tseg tom qab kho tiav. Thiab nws yuav tsum tau ntim raws li cov khoom siv uas tuaj yeem siv los ntawm lub network uas twb muaj lawm. ”
Ib qho kev daws teeb meem uas Custom Technologies tau ua tiav tau ua tiav yog cov khoom siv nqa tau yooj yim uas siv cov nplaum epoxy toughened los kho cov nplaum sib xyaw ua ke raws li qhov loj ntawm qhov kev puas tsuaj (txog 12 square inches). Kev ua qauv qhia tau ua tiav ntawm cov khoom sib xyaw uas sawv cev rau 3-nti tuab AMCB lawj. Cov khoom sib xyaw muaj 3-nti tuab balsa ntoo core (15 phaus ib cubic ko taw ntom ntom) thiab ob txheej ntawm Vectorply (Phoenix, Arizona, US) C -LT 1100 carbon fiber 0 ° / 90 ° biaxial stitched ntaub, ib txheej ntawm C-TLX 1900 carbon fiber 0 ° / + 45 ° / -45 ° peb ncej thiab ob txheej ntawm C-LT 1100, tag nrho ntawm tsib txheej. "Peb tau txiav txim siab tias cov khoom siv yuav siv thaj ua rau thaj ua ntej hauv ib qho quasi-isotropic laminate zoo ib yam li ntau lub axis kom cov kev taw qhia ntaub yuav tsis muaj teeb meem," Crane tau hais.
Qhov teeb meem tom ntej no yog cov resin matrix siv rau kev kho laminate. Txhawm rau kom tsis txhob sib xyaw ua kua, lub thaj yuav siv prepreg. "Txawm li cas los xij, cov kev cov nyom no yog khaws cia," Bergen piav qhia. Txhawm rau tsim kho thaj chaw ruaj khov, Custom Technologies tau koom tes nrog Sunrez Corp. (El Cajon, California, USA) los tsim cov iav fiber ntau / vinyl ester prepreg uas tuaj yeem siv lub teeb ultraviolet (UV) hauv rau feeb Lub teeb kho. Nws kuj tau koom tes nrog Gougeon Cov Kwv Tij (Bay City, Michigan, Tebchaws Asmeskas), uas qhia txog kev siv cov yeeb yaj kiab epoxy tshiab.
Cov kev tshawb fawb thaum ntxov tau pom tias epoxy resin yog cov khoom tsim nyog tshaj plaws rau carbon fiber prepregs-UV-kho tau vinyl ester thiab translucent iav fiber ntau ua haujlwm zoo, tab sis tsis kho nyob rau hauv lub teeb-thaiv carbon fiber. Raws li Gougeon Brothers 'cov yeeb yaj kiab tshiab, qhov kawg epoxy prepreg yog kho rau 1 teev ntawm 210 ° F / 99 ° C thiab muaj lub neej ntev ntawm chav tsev kub-tsis xav tau qhov kub thiab txias. Bergen tau hais tias yog xav tau qhov kub hloov pauv iav (Tg) ntau dua, cov resin kuj tseem yuav kho tau ntawm qhov kub siab dua, xws li 350 ° F / 177 ° C. Ob lub prepregs yog muab rau hauv ib qho khoom siv kho kom haum raws li ib pawg ntawm prepreg thaj ua rau thaj ntim rau hauv lub hnab yas zaj duab xis.
Txij li cov khoom siv kho yuav raug muab khaws cia rau ntev, Cov Khoom Siv Hluav Taws Xob yuav tsum tau ua txoj kev tshawb fawb lub neej txee. Bergen tau hais tias "Peb tau yuav plaub lub hnab yas tawv tawv-ib hom tub rog uas siv hauv cov khoom siv thauj mus los-thiab muab cov qauv ntawm epoxy nplaum thiab yas ester prepreg rau hauv txhua lub thawv," Bergen hais. Tom qab ntawd cov thawv tau muab tso rau hauv plaub qhov chaw sib txawv rau kev sim: lub ru tsev ntawm Gougeon Brothers Hoobkas hauv Michigan, lub ru tsev ntawm Maryland tshav dav hlau, qhov chaw sab nraum zoov hauv Yucca Valley (California suab puam), thiab lub chaw kuaj xyuas corrosion sab nraum zoov nyob rau yav qab teb Florida. Txhua qhov xwm txheej muaj cov ntaub ntawv loggers, Bergen taw qhia, "Peb coj cov ntaub ntawv thiab cov khoom siv rau kev ntsuas txhua peb lub hlis. Qhov kub siab tshaj plaws uas tau sau tseg hauv cov thawv hauv Florida thiab California yog 140 ° F, uas yog qhov zoo rau feem ntau cov resins. Nws yog qhov kev sib tw tiag tiag. " Tsis tas li ntawd, Gougeon Cov kwv tij nyob sab hauv tau sim cov tshiab tsim ntshiab epoxy resin. "Cov qauv uas tau muab tso rau hauv qhov cub ntawm 120 ° F rau ob peb lub hlis pib ua polymerize," Bergen hais. "Txawm li cas los xij, rau cov qauv sib thooj khaws cia ntawm 110 ° F, cov chemical resin tsuas yog txhim kho los ntawm me me."
Kev kho tau raug txheeb xyuas ntawm lub rooj sib tw xeem thiab cov qauv ntsuas no ntawm AMCB, uas siv tib lub laminate thiab cov khoom tseem ceeb raws li tus choj qub tsim los ntawm Seemann Composites. Duab qhov chaw: Custom Technologies LLC
Txhawm rau ua kom pom cov txheej txheem kho, tus neeg sawv cev laminate yuav tsum tau tsim, puas thiab kho. Klein tau hais tias "thaum thawj theem ntawm txoj haujlwm, peb pib siv cov kab me me 4 x 48-nti thiab plaub-point dabtsi yog khoov ntsuas los ntsuas qhov ua tau ntawm peb cov txheej txheem kho," Klein tau hais. "Tom qab ntawd, peb tau hloov mus rau 12 x 48 inch panels nyob rau theem thib ob ntawm qhov project, siv cov loads los ua kom muaj kev ntxhov siab biaxial ua rau tsis ua haujlwm, thiab tom qab ntawd ntsuas kev kho qhov ua tau zoo. Nyob rau theem thib ob, peb kuj ua tiav AMCB qauv peb tsim Kev Kho. "
Bergen tau hais tias lub vaj huam sib luag xeem tau siv los ua pov thawj qhov kev txhim kho kev ua tau zoo yog tsim los siv tib yam kab ntawm laminates thiab cov ntaub ntawv tseem ceeb xws li AMCB tsim los ntawm Seemann Composites, "tab sis peb txo cov vaj huam sib luag thickness ntawm 0.375 ntiv mus rau 0.175 ntiv tes, raws li qhov sib npaug ntawm qhov kev xav. . Qhov no yog qhov teeb meem. Cov txheej txheem, ua ke nrog cov ntsiab lus ntxiv ntawm txoj kev xav beam thiab classical laminate txoj kev xav [CLT], tau siv los txuas rau lub sijhawm ntawm inertia thiab kev ua haujlwm nruj ntawm tag nrho cov nplai AMCB nrog cov khoom me me demo uas yooj yim rau kev tswj thiab ntau dua. raug nqi. Tom qab ntawd, peb qhov kev txheeb xyuas qhov kawg [FEA] tus qauv tsim los ntawm XCraft Inc. (Boston, Massachusetts, USA) tau siv los txhim kho cov qauv tsim kho. " Cov pa roj carbon fiber ntau siv rau kev xeem panels thiab AMCB qauv tau yuav los ntawm Vectorply, thiab balsa core yog tsim los ntawm Core Composites (Bristol, RI, US) muab.
Kauj Ruam 1. Lub vaj huam sib luag xeem no qhia txog 3 nti lub qhov taub kom simulate kev puas tsuaj uas cim rau hauv nruab nrab thiab kho qhov ncig. Duab qhov chaw rau txhua kauj ruam: Custom Technologies LLC.
Kauj Ruam 2. Siv lub roj teeb-powered phau ntawv grinder kom tshem tawm cov khoom puas thiab kaw qhov kho thaj tsam nrog 12: 1 taper.
Bergen piav qhia tias "Peb xav sim ua kom muaj kev puas tsuaj ntau dua ntawm pawg thawj coj saib xyuas dua li qhov yuav pom ntawm tus choj lawj hauv thaj teb," Bergen piav qhia. "Yog li peb txoj hauv kev yog siv lub qhov pom los ua qhov 3-inch txoj kab uas hla. Tom qab ntawd, peb rub tawm lub ntsaws ntawm cov khoom puas thiab siv lub tes tuav pneumatic grinder los ua cov phuam qhwv caj dab 12: 1.
Crane tau piav qhia tias rau kev kho carbon fiber / epoxy, ib zaug cov khoom siv "kev puas tsuaj" raug tshem tawm thiab siv txoj phuam qhwv caj dab, lub prepreg yuav raug txiav kom dav thiab ntev kom phim lub taper ntawm qhov chaw puas. "Rau peb lub vaj huam sib luag xeem, qhov no yuav tsum muaj plaub txheej ntawm prepreg kom cov khoom siv kho kom zoo ib yam nrog rau sab saum toj ntawm lub vaj huam sib luag qub uas tsis muaj kev puas tsuaj. Tom qab ntawd, peb txheej txheej ntawm carbon / epoxy prepreg yog concentrated rau qhov no ntawm kho qhov chaw. Txhua txheej txheej txuas ntxiv 1 nti ntawm txhua sab ntawm cov txheej txheem qis, uas muab cov kev hloov pauv maj mam los ntawm "zoo" cov khoom nyob ib puag ncig mus rau thaj chaw kho. Lub sijhawm tag nrho los ua qhov kev kho no-xws li kho qhov chaw npaj, Txiav thiab muab cov khoom siv kho dua tshiab thiab siv cov txheej txheem kho-kwv yees li 2.5 teev.
Rau cov pa roj carbon fiber ntau / epoxy prepreg, thaj chaw kho yog lub tshuab nqus tsev ntim thiab kho ntawm 210 ° F / 99 ° C rau ib teev siv lub roj teeb uas siv hluav taws xob thermal bonder.
Txawm hais tias kho cov pa roj carbon / epoxy yog qhov yooj yim thiab ceev, pab pawg tau lees paub qhov xav tau kev daws teeb meem yooj yim dua los kho qhov ua tau zoo. Qhov no coj mus rau kev tshawb fawb ntawm ultraviolet (UV) kho prepregs. "Qhov kev txaus siab ntawm Sunrez vinyl ester resins yog raws li kev ua tub rog yav dhau los nrog rau lub tuam txhab tus tsim Mark Livesay," Bergen piav qhia. "Peb thawj zaug muab Sunrez nrog cov iav quasi-isotropic, siv lawv cov yas ester prepreg, thiab ntsuas qhov curing nkhaus nyob rau hauv ntau yam kev mob. Tsis tas li ntawd, vim peb paub tias vinyl ester resin tsis zoo li epoxy resin uas muab cov kev ua tau zoo thib ob adhesion, yog li kev siv zog ntxiv yuav tsum tau ntsuas ntau yam nplaum txheej coupling cov neeg ua haujlwm thiab txiav txim siab seb qhov twg yog qhov tsim nyog rau daim ntawv thov. "
Lwm qhov teeb meem yog tias iav fibers tsis tuaj yeem muab tib yam khoom siv xws li carbon fibers. "Piv nrog cov pa roj carbon / epoxy thaj, qhov teeb meem no tau daws los ntawm kev siv ib txheej ntxiv ntawm iav / yas ester," Crane hais. "Qhov laj thawj vim li cas tsuas yog xav tau ib txheej ntxiv yog tias cov khoom siv iav yog cov ntaub hnyav dua." Qhov no tsim ib thaj chaw tsim nyog uas tuaj yeem siv tau thiab ua ke tsis pub dhau rau feeb txawm tias qhov txias heev / khov hauv qhov kub thiab txias. Kho yam tsis muaj cua sov. Crane tau taw qhia tias qhov kev kho no tuaj yeem ua tiav hauv ib teev.
Ob lub patch systems tau ua qauv qhia thiab sim. Rau txhua qhov kev kho, thaj chaw uas yuav raug puas tsuaj yog cim (kauj ruam 1), tsim nrog lub qhov pom, thiab tom qab ntawd tshem tawm siv lub roj teeb-powered phau ntawv grinder (qib 2). Tom qab ntawd txiav thaj chaw kho rau hauv 12: 1 taper. Ntxuav qhov saum npoo ntawm txoj phuam qhwv caj dab nrog cawv cawv (qib 3). Tom ntej no, txiav qhov kho thaj ua rau ib qho me me, muab tso rau ntawm qhov chaw ntxuav (qib 4) thiab sib sau ua ke nrog cov menyuam kom tshem tawm cov npuas npuas. Rau iav fiber ntau / UV-kho vinyl ester prepreg, tom qab ntawd tso cov txheej txheem tso rau ntawm qhov chaw kho thiab kho thaj chaw nrog lub teeb tsis muaj UV rau rau feeb (qib 5). Rau cov pa roj carbon fiber ntau / epoxy prepreg, siv lub pre-programmed, ib lub khawm, roj teeb-powered thermal bonder rau lub tshuab nqus tsev ntim thiab kho qhov chaw kho ntawm 210 ° F / 99 ° C rau ib teev.
Kauj Ruam 5. Tom qab muab cov txheej tev rau ntawm qhov chaw kho, siv lub teeb cordless UV los kho thaj tsam li 6 feeb.
Bergen tau hais tias "Tom qab ntawd peb tau ua qhov kev sim los ntsuas qhov nplaum ntawm thaj thiab nws lub peev xwm los kho lub peev xwm thauj khoom ntawm tus qauv," Bergen tau hais. "Hauv thawj theem, peb yuav tsum ua pov thawj qhov yooj yim ntawm daim ntawv thov thiab muaj peev xwm rov qab tau yam tsawg kawg 75% ntawm lub zog. Qhov no yog ua los ntawm plaub-point dabtsi yog khoov ntawm 4 x 48 nti carbon fiber / epoxy resin thiab balsa core beam tom qab kho qhov kev puas tsuaj simulated. Yog lawm. Qhov thib ob theem ntawm qhov project siv 12 x 48 nti vaj huam sib luag, thiab yuav tsum muaj ntau tshaj 90% lub zog yuav tsum tau nyob rau hauv complex strain loads. Peb tau ntsib tag nrho cov kev xav tau no, thiab tom qab ntawd thaij duab cov txheej txheem kho ntawm AMCB qauv. Yuav ua li cas siv infield thev naus laus zis thiab cov cuab yeej siv los muab kev siv pom. "
Ib qho tseem ceeb ntawm qhov project yog los ua pov thawj tias cov novices tuaj yeem ua tiav qhov kho tau yooj yim. Vim li no, Bergen muaj ib lub tswv yim: “Kuv tau cog lus tias yuav ua kom pom peb ob qho kev sib tham hauv Tub Rog: Dr. Bernard Sia thiab Ashley Genna. Hauv kev tshuaj xyuas zaum kawg ntawm thawj theem ntawm qhov project, kuv thov kom tsis txhob kho. Kev paub Ashley ua qhov kho. Siv cov khoom siv thiab phau ntawv peb muab, nws tau siv thaj ua rau thaj thiab ua tiav kev kho yam tsis muaj teeb meem. "
Daim duab 2 Lub roj teeb-powered curing pre-programmed, roj teeb-powered thermal bonding tshuab tuaj yeem kho cov pa roj carbon fiber ntau / epoxy kho thaj ntawm lub laub ntawm lub pob, tsis tas yuav kho kev paub lossis kev kho lub voj voog. Duab qhov chaw: Custom Technologies, LLC
Lwm qhov kev txhim kho tseem ceeb yog lub roj teeb uas siv hluav taws xob kho (Daim duab 2). "Los ntawm kev saib xyuas sab hauv, koj tsuas muaj roj teeb lub zog," Bergen taw qhia. "Tag nrho cov txheej txheem cov cuab yeej hauv cov khoom siv kho peb tsim yog wireless." Qhov no suav nrog cov roj teeb uas siv hluav taws xob thermal sib koom ua ke los ntawm Custom Technologies thiab thermal bonding tshuab muab WichiTech Industries Inc. (Randallstown, Maryland, USA) tshuab. Crane tau hais tias "Lub roj teeb uas siv hluav taws xob siv hluav taws xob no yog npaj ua ntej kom ua tiav kev kho, yog li cov neeg tshiab tsis tas yuav ua haujlwm kho lub voj voog," Crane tau hais. "Lawv tsuas yog yuav tsum tau nias lub pob kom ua tiav qhov kev txhim kho thiab tsau." Cov roj teeb uas siv tam sim no tuaj yeem kav ntev li ib xyoos ua ntej lawv yuav tsum tau them rov qab.
Nrog rau kev ua tiav ntawm theem ob ntawm qhov project, Custom Technologies tab tom npaj ua raws cov lus qhia txhim kho thiab sau cov ntawv txaus siab thiab kev txhawb nqa. Bergen tau hais tias "Peb lub hom phiaj yog kom ua tiav cov thev naus laus zis no rau TRL 8 thiab coj mus rau thaj chaw," Bergen hais. "Peb kuj pom muaj peev xwm rau kev siv tsis yog tub rog."
Piav cov duab qub tom qab kev lag luam thawj qhov kev txhawb nqa fiber ntau, thiab muaj kev nkag siab tob txog kev tshawb fawb fiber ntau thiab kev txhim kho yav tom ntej.
Los sai sai thiab ya thawj zaug, 787 tso siab rau kev tsim kho tshiab hauv cov ntaub ntawv sib xyaw thiab cov txheej txheem kom ua tiav nws cov hom phiaj
Post lub sij hawm: Sep-02-2021