I-kit ephathekayo ingalungiswa nge-wev-curgible fiberglass / vinyl ester noma i-carbon fiber / epoxy prePreg egcinwe ekushiseni kwegumbi kanye nemishini yokuvula amandla ebhethri. #ingyUntucturesure #influcture
Ukulungiswa kwe-UV . Umthombo Wezithombe: Ubuchwepheshe Bangokwezifiso LLC
Amabhuloho asetshenziswayo asetshenziswayo ayizimpahla ezibucayi zokusebenza kwamacebo ezempi kanye nezinto zolwazi, kanye nokubuyiselwa kwengqalasizinda yezokuhamba ngesikhathi sezinhlekelele zemvelo. Izakhiwo ezihlanganisiwe ziyafundwa ukunciphisa isisindo samabhuloho anjalo, ngaleyo ndlela kunciphisa umthwalo ezimotweni zokuhamba nezinqubo zokuvuselela zokwethula. Uma kuqhathaniswa namabhuloho wensimbi, izinto ezihlanganisiwe nazo zinamandla okukhulisa umthamo wokuthela umthwalo futhi anwebe impilo yenkonzo.
Ibhuloho le-composite elithuthukile (AMCB) liyisibonelo. I-Seefein Composites LLC (Gulfport, Mississippi, US) kanye ne-Materies Sciences LLC (Horsham, Pa, US) Sebenzisa ama-epoxy fiber-ama-laminates (Umdwebo 1). ) Ukwakhiwa nokwakha). Kodwa-ke, amandla okulungisa izakhiwo ezinjalo ensimini kube yinkinga evimbela ukutholwa kwezinto ezihlanganisiwe.
Umdwebo 1 Ibhuloho elihlanganisiwe, i-Key Infipes Asset Advance adval I-Composite Bridy Bridge (AMCB) yakhelwe futhi yakhiwa yi-Seefein Composites LLC kanye nezinto zokwenziwa kwesayensi ye-LLC eqinisiwe i-EPOXY Resin Composites. Umthombo Wezithombe: Ama-composites asetshenzisiwe e-LLC (kwesobunxele) kanye ne-US Army (kwesokudla).
Ngo-2016, ubuchwepheshe ngokwezifiso LLC (Millyrsville, MD, US) bathole i-US Business Army Ennation Innovation Innovation Innovation (SBIR) Isigaba Sokucwaninga (SBIR) Isigaba Sokucwaninga (SBIR) Isigaba Sokucwaninga (SBIR) Isigaba Sokucwaninga (SBIR) Isigaba Sokucwaninga (SBIR) Isigaba sokukhulisa indlela yokulungisa engenziwa ngempumelelo ku-Its ngamasosha. Ngokusekelwe kule ndlela, isigaba sesibili seSibonelelo se-SBIR sanikezwa ngo-2018 ukukhombisa izinto ezintsha kanye nemishini enamandla ebhethri, noma ngabe isichibi senziwa yi-novice ngaphandle kokuqeqeshwa kwangaphambilini, i-90% noma ngaphezulu kwalesi sakhiwo singabuyiselwa phansi amandla. Izeluleko zobuchwepheshe inqunywa ngokwenza uchungechunge lokuhlaziywa, ukukhethwa kwezinto ezibonakalayo, ukukhiqiza okubonakalayo kanye nemisebenzi yokuhlola imishini, kanye nokulungiswa kwesilinganiso esincane kanye nokulungiswa okugcwele.
Umcwaningi ophambili ezigabeni ezimbili ze-SBIR nguMichael Bergen, umsunguli kanye noMongameli Wezobuchwepheshe Ngokwezifiso ze-LLC. I-Bergen yathatha umhlalaphansi kusuka kuKhadiya We-Naval Surface Warfare Center (NSWS) futhi wakhonza ezinhlakeni naseMnyangweni Wezokukhiqiza iminyaka engu-27, lapho akwazi khona ukuthuthukiswa kanye nokusetshenziswa kobuchwepheshe bezinhlanganisela ze-US Navy. UDkt Roger Crane ujoyine ubuchwepheshe ngokwezifiso ngonyaka we-2015 ngemuva kokuthatha umhlalaphansi e-US Navy ngonyaka ka-2011 futhi ukhonze iminyaka engama-32. Ubuchwepheshe bakhe bezinto ezihlanganisiwe buhlanganisa ukushicilelwa kwezobuchwepheshe kanye namalungelo obunikazi, ukumboza izihloko ezinjengezinto ezintsha zenhlanganisela, izinto zokukhiqiza, izindlela zokuxhumana, ukuqapha okuphathelene nempilo, kanye nokubuyiselwa kwezinto ezibonakalayo.
Ochwepheshe bobabili bathuthukise inqubo ehlukile esebenzisa izinto ezihlanganisiwe ukulungisa imidwebo e-Aluminium Superskructure ye-Aluminium CG-47 Class eqondisiwe cruiser 5456. "Le nqubo yathuthukiswa ukunciphisa ukukhula kwemifantu kanye nokusebenza njengenye indlela yezomnotho Ukufakwa esikhundleni kwebhodi yesikhulumi elinama-dollar ayizigidi ezimbili kuya kwayi-4, "kusho uBergen. "Ngakho-ke sabona ukuthi siyakwazi ukwenza ukulungiswa ngaphandle kwelebhu nasendaweni yangempela yesevisi. Kepha inselelo ukuthi izindlela zamasosha zamasosha zamanje aziphumelelanga kakhulu. Inketho ihlanganiswe nokulungiswa kwe-duplex [Ngokuyisisekelo ezindaweni ezonakele igcwaliswe iBhodi POP] noma isuse impahla kusuka kwisevisi ye-Warehouse-Level (D-Level) ukulungiswa. Ngenxa yokuthi ukulungiswa kwezinga le-D kuyadingeka, izimpahla eziningi zibekwa eceleni. "
Uqhubeke nokusho ukuthi okudingekayo yindlela engenziwa ngamasosha angenawo isipiliyoni sezinto ezihlanganisiwe, esebenzisa ama-kits kanye nezandla zokugcina. Umgomo wethu ukwenza inqubo ibe lula: Funda le ncwajana, hlola umonakalo futhi wenze ukulungiswa. Asifuni ukuxuba ama-liquid resins, ngoba lokhu kudinga ukukalwa okuqondile ukuqinisekisa ukwelashwa okuphelele. Sidinga nohlelo olungenamfucuza angenabungozi ngemuva kokuphothulwa. Futhi kufanele ifakwe njengekhithi engathunyelwa yinethiwekhi ekhona. "
Isixazululo esisodwa ubuchwepheshe ngokwezifiso bakhonjiswa ngempumelelo ikhithi ephathekayo esebenzisa ukunamathela okuqinile okunamandla ukwenza ngokwezifiso patch composite composite ngokulingana ngosayizi womonakalo (kuze kube yi-12 amasentimitha-skwele). Umbukiso waqedwa ngezinto ezihlanganisiwe ezimele i-AMCB ebanzi eyi-3. Izinto ezihlanganisiwe zinezinkuni ezi-3-intshi eziwugqinsi zebhalsa (amakhilogremu ayi-15 ngezendlalelo ezimbili ze-vectorply (Phoenix, Arizona, US) Indwangu engu-C-NORT 000 I-C-TLX 1900 Carbon Fibre 0 ° / + 45 ° / -45 ° Shaft kanye nezendlalelo ezimbili ze-C-LT 1100, ingqikithi yezingqimba ezinhlanu. "Sinqume ukuthi i-kit izosebenzisa ama-patches ahlanganisiwe ku-quasi-isotropic laminate efana ne-multi-isotropic elifana ne-multi-axis ukuze ukuqondiswa kwendwangu kungabi yinkinga," kusho uCrane.
Umagazini olandelayo yi-resin matrix esetshenziselwa ukulungiswa kwama-laquansitate. Ukuze ugweme ukuxubanisa i-liquid resin, isichibi sizosebenzisa i-preepreg. "Kodwa-ke, lezi zinselelo zigcinwa," kusho uBergen. Ukuthuthukisa isixazululo se-patch esikhohlakele, ubuchwepheshe ngokwezifiso bahlanganyele noSunRez Corp. (El Cajon, California, e-USA) ukuthuthukisa i-fiber fiber / i-vinyl ester prePreg engasebenzisa ukukhanya kwe-ultraviolet (UV) ngokukhanya kwemizuzu eyisithupha. Iphinde yasebenzisana ne-Gougeon Brothers (Bay City, eMichigan, e-USA), okuphakamise ukusetshenziswa kwefilimu entsha eguquguqukayo ye-epoxy.
Ucwaningo lwakuqala lukhombisile ukuthi i-epoxy resin iyona etholakala kahle kakhulu ye-resin ye-carbon fiber prePregs-UV e-vinyl ester kanye ne-translucent fiber fiber kahle, kepha ungalaphi ngaphansi kokuvinjelwa kwekhabhoni okuvinjelwe. Kususelwa efilimu elisha le-Gougeon Brothers ', i-epoxy prepreg yephululwa ihora eli-1 ku-210 ° F / 99 ° C futhi inempilo ende eshalofini endaweni yokushisa egumbini elingaphansi. UBergen uthe uma izinga lokushisa eliphakeme lengilazi liyadingeka, i-resin izophinde yelapheke endaweni yokushisa ephakeme, njenge-350 ° F / 177 ° C. Zombili lezi zinhlaka zinikezwa ekhishini elilula elisebenzisekayo njengesitaki se-presert patches evalwe emvilophi yefilimu yepulasitiki.
Njengoba ikhithi yokulungisa ingagcinwa isikhathi eside, ubuchwepheshe obungokwezifiso buyadingeka ukwenza isifundo sempilo yeshalofu. "Sithenge iziva ezinhlaka ezine zepulasitiki ezinzima - uhlobo olujwayelekile lwamasosha olusetshenziswe emishini yokuhamba - futhi lubeka amasampula anama-adhesive e-epoxy kanye ne-vinyl ester ebiyelwe endaweni ngayinye ebiyelwe," kusho uBergen. Amabhokisi abese ebekwe ezindaweni ezine ezihlukene zokuhlola: Uphahla lwefektri ye-Gougeon Brothers eMichigan esikhumulweni sezindiza saseMaryland, indawo yangaphandle e-yucca Valley (ne-Califoor Desert Laboratory eningizimu yeFlorida. Onke amacala ane-logger yedatha, ama-bergen aveza, "Sithatha idatha namasampula wezinto ezibonakalayo ukuze ahlolwe njalo ezinyangeni ezintathu. Izinga lokushisa eliphakeme eliqoshwe emabhokisini aseFlorida naseCalifornia lingu-140 ° F, elilungele ama-resins amaningi okubuyiselwa. Kuyinselele yangempela. " Ngaphezu kwalokho, abafowethu baseGougeon bangahlola ngaphakathi i-resin eshayisana esanda kuthuthukiswa. "Amasampula afakwe kuhhavini ngo-120 ° F izinyanga ezimbalwa aqala ukuhambisa i-polymerize," kusho uBergen. "Kodwa-ke, amasampula ahambisanayo agcinwe ngo-110 ° F, i-resin chemistry yathuthukiswa kuphela ngenani elincane."
Ukulungiswa kwaqinisekiswa ebhodini lokuhlola kanye nale modeli yesikali se-AMCB, ebesebenzisa i-laminate efanayo ye-laminate kanye nezinto zokuqala njengoba ibhuloho lasekuqaleni elakhiwa ama-composites abonayo. Umthombo Wezithombe: Ubuchwepheshe Bangokwezifiso LLC
Ukuze ubonise inqubo yokulungisa, i-laminative emele kufanele yenziwe, yonakele futhi ilungiswe. "Esigabeni sokuqala sephrojekthi, ekuqaleni sasebenzisa imishayo emincane emi-4 x 48-intshi-intshi kanye nokuhlolwa kwamaphuzu amane okuhlola ukuthi kungenzeka inqubo yethu yokulungisa," kusho uKlein. "Ngemuva kwalokho, saguqula amaphaneli we-intshi ayi-12 x 48 esigabeni sesibili sephrojekthi, asetshenzisiwe imithwalo ukukhiqiza isimo sokucindezela esibi sokubangela ukwehluleka, bese kuthi kuhlolisise ukusebenza kokulungisa. Esigabeni sesibili, saphothula nemodeli ye-AMCB sakha isondlo. "
UBergen wathi iphaneli yokuhlola esetshenziselwa ukufakazela ukusebenza kokulungisa kusetshenziswa uhlu olufanayo lwama-laminates nezinto ze-amcB ezikhiqizwa ngamasentimitha angama-0.375 . Lokhu kunjalo. Indlela, kanye nezinto ezingezekile ze-Beam theory kanye ne-lammanzete theory [CLT] yasendulo, yayisetshenziselwa ukuxhumanisa umzuzu we-inertia nokuqina okusebenzayo kwe-AMCB ephelele ye-AMCB enesisindo esilula ukusingatha nokuningi kuqiza kahle. Ngemuva kwalokho, thina ukuhlaziya okwenziwe okuthile [Imodeli] ye-Finete eyenziwe ngu-Xcraft Inc. (Boston, Massachusetts, e-USA) yayisetshenziselwa ukwenza ngcono ukwakheka kokulungiswa kwesakhiwo. " Indwangu ye-carbon fiber esetshenziselwa amaphaneli wokuhlola kanye nemodeli ye-AMCB yathengwa kusuka ku-vectorply, kanti ne-balsa core yenziwa ngama-composites angu-core (i-bristol, i-RI, i-US) enikeziwe.
Isinyathelo 1 Umthombo wesithombe sazo zonke izinyathelo: ubuchwepheshe bezinkomba ze-LLC.
Isinyathelo 2
"Sifuna ukulingisa ukulimala okuphezulu ebhodini lokuhlola kunokuba kubonwe emphemeni webhuloho ensimini," kuchaza uBergen. "Ngakho-ke indlela yethu ukusebenzisa umgodi obonile ukwenza umgodi wobubanzi obungu-3. Ngemuva kwalokho, sikhipha ipulaki lezinto ezilimele futhi sisebenzise isigaxa se-pneumatic esibanjwe ngesandla ukucubungula i-12: 1 isikhafu. "
UCrane uchaze ukuthi ukulungiswa kwe-carbon fiber / i-epoxy, lapho impahla "eyonakele" isusiwe futhi i-prepreg izonqunywa ububanzi nobude ukufanisa i-taper yendawo eyonakele. "Iphaneli yethu yokuhlola, lokhu kudinga izingqimba ezine ze-prepreg ukugcina impahla yokulungisa ihambisana nenhla yephaneli yekhabhoni yangempela. Emva kwalokho, izingqimba ezintathu zokumboza i-carbon / epoxy prepreg zigxile kulokhu engxenyeni elungisiwe. Ungqimba ngalunye olulandelanayo lufinyelela ku-intshi engu-1 kuzo zonke izinhlangothi zengqimba engezansi, enikeza ukudluliswa komthwalo kancane kancane kusuka ezintweni "ezinhle" ezizungezile endaweni elungisiwe. " Isikhathi esiphelele sokwenza lokhu kulungiswa - kufaka phakathi ukulungiswa kwendawo yokulungisa, ukusika nokubeka izinto zokubuyiselwa kanye nokusebenzisa inqubo yokuvuselela kanye namahora acishe abe ngu-2,5.
Nge-carbon fiber / epoxy prepreg, indawo yokulungisa i-vacuum igcwele futhi yelaphe ku-210 ° F / 99 ° C.
Yize ukulungiswa kwe-carbon / epoxy kulula futhi kuyashesha, iqembu labona isidingo soludi esilula sokubuyisela ukusebenza. Lokhu kuholele ekuhlolweni kwe-Ultraviolet (UV) Purplegs. "Intshisekelo eSunrez Vinyl Ester Resens isuselwe ekuhlangenwe nakho kwasolwandle okwedlule ngenkampani yomsunguli wenkampani," kuchaza uBergen. "Siqale sanikeza i-sunrez ngendwangu yengilazi ye-quasi-isotropic, isebenzisa i-vinyl ester yabo i-PrePREG, yahlola ijika lelapha ngaphansi kwezimo ezihlukile. Ngaphezu kwalokho, ngoba siyazi ukuthi i-vinyl ester resin ayifani ne-epoxy resin enikezela ukusebenza okufanelekile kokunamathela kwesibili, ngakho-ke kuyadingeka imizamo eyengeziwe yokuhlola ama-ejenti wokuhlangana we-adhesive ungqimba nokunquma ukuthi iyiphi efanele isicelo. "
Enye inkinga ukuthi imicu yengilazi ayikwazi ukuhlinzeka ngezakhiwo ezifanayo zemishini njengezicucu zekhabhoni. "Uma kuqhathaniswa nekhabhoni / i-epoxy patch, le nkinga ixazululwa ngokusebenzisa ungqimba owengeziwe wengilazi / vinyl ester," kusho uCrane. "Isizathu sokuthi kungani ungqimba elilodwa kuphela elingeziwe elidingekayo ukuthi impahla yengilazi iyindwangu enzima." Lokhu kukhiqiza isichibi esifanele esingasetshenziswa futhi sihlanganiswe kungakapheli imizuzu eyisithupha ngisho nasekulimaleni okubandayo / okufiphele. Ukuphula ngaphandle kokunikeza ukushisa. UCrane waveza ukuthi lo msebenzi wokulungisa ungaphothulwa kungakapheli ihora.
Zombili izinhlelo ze-patch zikhonjisiwe futhi zahlolwa. Ngokulungiswa ngakunye, indawo ezonakaliswa imakwe (isinyathelo 1), idalwe nge-holew saw, bese isuswa kusetshenziswa i-grinder enikwe ngebhethri elinamandla (Isinyathelo 2). Ngemuva kwalokho usike indawo elungisiwe ibe ngu-12: 1 i-taper. Hlanza ingaphezulu lesikhafu nge-pad yotshwala (Isinyathelo 3). Okulandelayo, usike isichibi sokulungisa usayizi othile, ubeke endaweni ehlanzekile (Isinyathelo 4) futhi uyiqede nge-roller ukuze ususe ama-bubble omoya. Ukuze uthole i-Glass Fiberl / UV-welapha uVinyl Ester PrePREG, bese ubeka ungqimba wokukhishwa endaweni elungisiwe futhi welaphe isibani ngesibani se-UV esingenazintambo imizuzu eyisithupha (Isinyathelo 5). Kwi-carbon fiber / epoxy prepreg, sebenzisa inkinobho yangaphambi, i-One-Powered Thermal Boodd to vacuum pack futhi welapha indawo elungisiwe ku-210 ° F / 99 ° C.
Isinyathelo 5
"Ngemuva kwalokho saqhuba izivivinyo zokuhlola ukunamathela kwesichibi namandla asibo sokubuyisela umthamo othwala umthwalo wesakhiwo," kusho uBergen. "Esigabeni sokuqala, kudingeka sifakazele kalula uhlelo lokusebenza kanye nekhono lokuthola okungenani ama-75% amandla. Lokhu kwenziwa ngokugoba amaphoyinti amane ku-4 x 48 inch carbon fiber / i-epoxy resin kanye ne-balsa core beam ngemuva kokulungisa umonakalo owenziwe. Yebo. Isigaba sesibili sephrojekthi sasebenzisa iphaneli engu-12 x 48 intshi, futhi kufanele sikhombise izidingo zamandla angaphezu kwayi-90% ngaphansi kwemithwalo eyinkimbinkimbi yezinkulungwane. Sihlangane nazo zonke lezi zidingo, bese sithwebula izithombe ngezindlela zokulungisa imodeli ye-AMCB. Ungawasebenzisa kanjani ubuchwepheshe be-infield kanye nemishini ukunikeza ireferensi ebonakalayo. "
Isici esibalulekile sephrojekthi ukufakazela ukuthi ama-novices angaqedela ukulungisa kalula. Ngalesi sizathu, uBergen wayenombono: "Ngithembisile ukukhombisa koxhumana nabo ababili bezobuchwepheshe embuthweni: UDkt Bernard Sia no-Ashley Genna kanye no-Ashley Genna. Ekubuyekezweni kokugcina kwesigaba sokuqala sephrojekthi, ngangicela ukungalungisi. Uhlangane u-Ashley walungisa ukulungisa. Usebenzisa ikhithi nencwajana enikeziwe, wasebenzisa isichibi futhi waqeda ukulungisa ngaphandle kwezinkinga. "
Umdwebo 2 I-Prequring-Power-Powered Heading Machined, umshini wokubopha onamandla webhethri ungalapha i-carbon fiber / i-epoxy ukulungiswa kwe-patch lapho ucindezelwa inkinobho, ngaphandle kwesidingo sohlelo lokulungisa noma lokuvuselela uhlelo lokulungisa. Umthombo Wezithombe: Ubuchwepheshe Bangokwezifiso, LLC
Enye intuthuko esemqoka uhlelo lwe-Pring-Power-Power-Power-Posing (Umdwebo 2). "Ngokunakekelwa kwe-Infueld, unamandla ebhethri kuphela," kusho uBergen. "Yonke imishini yenqubo ekhitweni yokulungisa esithuthukile ayinantambo." Lokhu kufaka phakathi ukubopha okukhokhelwa kwebhethri okunamandla okwenziwa ngokuhlangene ngobuchwepheshe ngokwezifiso kanye nomhlinzeki we-thermal Bonding Machine Wichitech Industries Inc. (IRandallStown, Maryland, e-USA) Mshini. "Le thando le-thermal-anikwe ngebhethri lihlelwe ngaphambili ukuze liqede ukwelapha, ngakho-ke ama-novices awadingi ukuhlela umjikelezo welapha," kusho uCrane. "Badinga nje ukucindezela inkinobho ukuqeda i-ramp efanelekile futhi becwilisa." Amabhethri asetshenziswa njengamanje angahlala unyaka ngaphambi kokuba adinge ukuklanywa.
Ngokuphothulwa kwesigaba sesibili sephrojekthi, ubuchwepheshe bezinkomba ulungiselela iziphakamiso zokulandela ukuthuthukiswa kanye nokuqoqa izinhlamvu zentshisekelo nokusekelwa. "Umgomo wethu ukuvuselela lobu buchwepheshe ku-TRL 8 bese ukuletha ensimini," kusho uBergen. "Siphinde sibone amandla ezicelo ezingezona ezempi."
Kuchaza ubuciko obudala ngemuva kokuqiniswa kwe-fiber yokuqala imboni, futhi unokuqonda okujulile kwesayensi entsha ye-fiber kanye nentuthuko yesikhathi esizayo.
Kuyeza maduze futhi ukundiza okokuqala, ama-787 ancike ekuhlanganyeleni ngezinto ezihlanganisiwe nezinqubo zokufeza izinhloso zawo
Isikhathi sePosi: Sep-02-2021