Enwere ike iji fiberglass/vinyl ester UV-curable ma ọ bụ carbon fiber/epoxy prepreg rụkwaa ngwa a na-ebugharị ebugharị na ụlọ okpomọkụ yana akụrụngwa ọgwụgwọ batrị na-enye.# n'ime imepụta # akụrụngwa
UV-curable prepreg patch nrụzi Ọ bụ ezie na nrụzi carbon fiber/epoxy prepreg nke Custom Teknụzụ LLC mepụtara maka àkwà mmiri mejupụtara infield gosipụtara na ọ dị mfe na ngwa ngwa, iji eriri iko mesiri UV-curable vinyl ester resin Prepreg ewepụtala usoro dabara adaba karịa. .Isi iyi onyonyo: Custom Technologies LLC
Àkwà mmiri ndị nwere ike ibugharị modul bụ akụ dị oke mkpa maka ịrụ ọrụ akọ na ngwa agha, yana mweghachi akụrụngwa njem n'oge ọdachi ndị na-emere onwe ha.A na-amụ ihe arụkọtara ọnụ iji belata ịdị arọ nke àkwà mmiri ndị dị otú ahụ, si otú a na-ebelata ibu dị n'ụgbọ njem na usoro mgbake mgbake.E jiri ya tụnyere àkwà mmiri igwe, ihe ndị mejupụtara ihe nwekwara ike ịbawanye ikike ibu ibu na ịgbatị ndụ ọrụ.
The Advanced Modular Composite Bridge (AMCB) bụ ihe atụ.Seemann Composites LLC (Gulfport, Mississippi, US) na Materials Sciences LLC (Horsham, PA, US) na-eji carbon fiber na-emesi ike epoxy laminates (Ọnọdụ 1).) Nhazi na ihe owuwu).Otú ọ dị, ikike ịrụzi ihe ndị dị otú ahụ n'ọhịa abụrụla ihe na-egbochi ịnakwere ihe ndị mejupụtara.
Ọgụgụ 1 Composite bridge, isi infield asset Advanced Modular Composite Bridge (AMCB) bụ nke Seemann Composites LLC na Materials Sciences LLC mere ma rụọ ya site na iji carbon fiber gbasiri ike epoxy resin composites.Isi iyi onyonyo: Seeman Composites LLC (aka ekpe) na ndị agha US (n'aka nri).
Na 2016, Custom Teknụzụ LLC (Millersville, MD, US) nwetara onyinye US Army na-akwado Small Business Innovation Research (SBIR) Phase 1 iji mepụta usoro nrụzi nke ndị agha nwere ike ịrụ ọrụ nke ọma na saịtị.Dabere na usoro a, a na-enye usoro nke abụọ nke onyinye SBIR na 2018 iji gosipụta ihe ọhụrụ na akụrụngwa batrị, ọbụlagodi ma ọ bụrụ na onye novice na-eme patch ahụ na-enweghị ọzụzụ mbụ, 90% ma ọ bụ karịa nke ihe owuwu ahụ nwere ike iweghachi Raw. ike.A na-ekpebi ike nke nkà na ụzụ site n'ịme usoro nyocha, nhọrọ ihe, ihe nrịbama n'ichepụta na ọrụ nyocha ọrụ, yana obere obere na nrụzi zuru oke.
Onye isi nyocha na usoro SBIR abụọ bụ Michael Bergen, onye nchoputa na onye isi oche nke Custom Teknụzụ LLC.Bergen lara ezumike nká na Carderock nke Naval Surface Warfare Center (NSWC) wee jee ozi na Structures and Materials Department maka afọ 27, ebe o jisiri ike na mmepe na ngwa nke teknụzụ mejupụtara na ụgbọ mmiri US Navy.Dr. Roger Crane sonyeere Custom Teknụzụ na 2015 mgbe ọ lara ezumike nká na US Navy na 2011 ma jee ozi maka afọ 32.Ọkachamara ihe mejupụtara ya gụnyere mbipụta teknụzụ na ikike ikike, na-ekpuchi isiokwu dị ka ihe mejupụtara ọhụrụ, nrụpụta prototype, ụzọ njikọ, ihe mejupụtara multifunctional, nlekota ahụike nhazi, na mweghachi ihe mejupụtara.
Ndị ọkachamara abụọ ahụ emepụtala usoro pụrụ iche nke na-eji ihe mgbagwoju anya na-arụzi mgbape na aluminum superstructure nke Ticonderoga CG-47 class Guided missile cruiser 5456. iji dochie bọọdụ ikpo okwu nke nde dollar 2 ruo 4, ”Bergen kwuru."Ya mere, anyị gosipụtara na anyị maara otú e si arụzi ihe n'èzí ụlọ nyocha na ebe a na-arụ ọrụ n'ezie.Mana ihe ịma aka bụ na ụzọ akụ ndị agha ugbu a adịghị aga nke ọma.Nhọrọ a na-ejikọta nrụzi duplex [nke bụ na ebe mebiri emebi, gbanye bọọdụ n'elu] ma ọ bụ wepụ ihe bara uru na ọrụ maka ndozi ụlọ-ọkwa (D-level).N'ihi na achọrọ nrụzi ọkwa D, a na-etinye ọtụtụ akụ n'akụkụ. "
Ọ gara n'ihu na-ekwu na ihe a chọrọ bụ usoro nke ndị agha na-enweghị ahụmahụ na ihe ndị mejupụtara, na-eji naanị ngwa na akwụkwọ ntuziaka na-arụ ọrụ.Ebumnuche anyị bụ ime ka usoro ahụ dị mfe: gụọ akwụkwọ ntuziaka, nyochaa mmebi na ịrụzi ihe.Anyị achọghị ịgwakọta resin mmiri mmiri, n'ihi na nke a chọrọ nha nke ọma iji hụ na a gwọọ ya nke ọma.Anyị chọkwara usoro na-enweghị ihe mkpofu dị ize ndụ mgbe emechara nrụzi.Na a ga-achịkọta ya dị ka ngwa nke netwọk dị adị nwere ike ibunye ya.”
Otu ihe ngwọta nke Teknụzụ Ahịa gosipụtara nke ọma bụ ngwa nwere ike ibugharị na-eji nrapado epoxy siri ike iji hazie patch composite nrapado dịka nha nke mmebi ahụ siri dị (ihe ruru sentimita iri na abụọ).Emechara ihe ngosi a n'ihe mejupụtara ihe mejupụtara oche AMCB dị inch 3.Ihe mejupụtara ya nwere nnukwu osisi balsa 3-inch (paụnd 15 kwa cubic ụkwụ njupụta) na akwa abụọ nke Vectorply (Phoenix, Arizona, US) C -LT 1100 carbon fiber 0°/90° biaxial stitched ákwà, otu oyi akwa nke C-TLX 1900 carbon fiber 0 °/+45°/-45° atọ aro na abụọ n'ígwé nke C-LT 1100, ngụkọta nke ise n'ígwé.Crane kwuru, "Anyị kpebiri na ngwa ahụ ga-eji patches prefabricated na quasi-isotropic laminate dị ka multi-axis ka ntụzịaka ákwà agaghị abụ nsogbu," Crane kwuru.
Ihe na-esote bụ resin matriks eji emezi laminate.Iji zere ịgwakọta resin mmiri mmiri, patch ga-eji prepreg."Otú ọ dị, ihe ịma aka ndị a bụ nchekwa," Bergen kọwara.Iji mepụta ihe ngwọta nchekwa nchekwa, Custom Teknụzụ esorola Sunrez Corp. (El Cajon, California, USA) rụpụta otu iko fiber/vinyl ester prepreg nke nwere ike iji ọkụ ultraviolet (UV) na nkeji isii na-agwọta ọkụ.Ya na Gougeon Brothers (Bay City, Michigan, USA) jikọrọ aka, nke tụrụ aro ka e jiri ihe nkiri epoxy ọhụrụ na-agbanwe agbanwe.
Nnyocha mbụ egosila na resin epoxy bụ resin kachasị mma maka carbon fiber prepregs-UV-curable vinyl ester na translucent glass fiber na-arụ ọrụ nke ọma, mana anaghị agwọ ya n'okpuru eriri carbon na-egbochi ọkụ.Dabere na ihe nkiri Gougeon Brothers ọhụrụ, a na-agwọta prepreg epoxy ikpeazụ maka elekere 1 na 210°F/99°C ma nwee ogologo ndụ nchekwa n'ime ụlọ okpomọkụ-ọ dịghị mkpa maka nchekwa dị ala.Bergen kwuru na ọ bụrụ na achọrọ okpomọkụ mgbanwe iko dị elu (Tg), a ga-agwọkwa resin na okpomọkụ dị elu, dị ka 350°F/177°C.A na-enye prepregs abụọ ahụ na ngwa nrụzi a na-ebugharị dị ka nchịkọta prepreg patches nke etinyere na envelopu ihe nkiri rọba.
Ebe ọ bụ na enwere ike ịchekwa ngwa nrụzi ahụ ogologo oge, a na-achọ teknụzụ omenala iji duzie ọmụmụ ndụ shelf.Bergen kwuru, "Anyị zụtara ihe mkpuchi rọba siri ike anọ - ụdị ndị agha a na-ejikarị eme ihe na akụrụngwa ụgbọ njem - wee tinye samples nke epoxy adhesive na vinyl ester prepreg n'ime ogige ọ bụla," Bergen kwuru.A na-etinye igbe ndị ahụ n'ebe anọ dị iche iche maka nnwale: elu ụlọ nke Gougeon Brothers factory na Michigan, elu ụlọ nke ọdụ ụgbọ elu Maryland, ụlọ dị n'èzí na Yucca Valley (California desert), na ụlọ nyocha nyocha corrosion n'èzí dị na ndịda Florida.Okwu niile nwere ndị na-edekọ data, Bergen na-ekwu, "Anyị na-ewere data na ihe nlele maka nyocha kwa ọnwa atọ.Okpomọkụ kachasị nke edere na igbe dị na Florida na California bụ 140ºF, nke dị mma maka ọtụtụ resins mweghachi.Ọ bụ ezigbo ihe ịma aka.”Na mgbakwunye, Gougeon Brothers n'ime nwalere resin epoxy dị ọcha emepụtara ọhụrụ."Nlereanya ndị etinyere na oven na 120 ° F ruo ọtụtụ ọnwa na-amalite polymerize," Bergen kwuru."Otú ọ dị, maka ihe nlele kwekọrọ na 110ºF, kemịkalụ resin na-eme ka ọ dịkwuo ntakịrị."
Achọpụtara nrụzi ahụ na bọọdụ ule na ụdị ọnụ ọgụgụ a nke AMCB, nke ji otu laminate na isi ihe dị ka àkwà mmiri mbụ nke Seemann Composites wuru.Isi iyi onyonyo: Custom Technologies LLC
Iji gosipụta usoro nrụzi ahụ, a ga-emepụta laminate onye nnọchiteanya, mebie ma mezie ya.Klein kwuru, "N'ime akụkụ mbụ nke ọrụ ahụ, anyị na-eji obere 4 x 48-inch beams na ule na-ehulata isi anọ iji nyochaa ike nke usoro nrụzi anyị," Klein kwuru."Mgbe ahụ, anyị tụgharịrị gaa na 12 x 48 inch panels na akụkụ nke abụọ nke ọrụ ahụ, tinye nnukwu ibu iji mepụta ọnọdụ nrụgide biaxial iji mee ka ọdịda, wee nyochaa arụmọrụ nrụzi.N'akụkụ nke abụọ, anyị dechara ụdị AMCB anyị wuru Ndozi. "
Bergen kwuru na a na-eji otu ụdị nke laminates na ihe ndị bụ isi arụpụtara na panel ule iji gosi na arụrụ ọrụ arụrụ arụ ọrụ dị ka AMCB nke Seemann Composites rụpụtara, "ma anyị belatara panel panel site na 0.375 sentimita ruo 0.175 sentimita asatọ, dabere na usoro axis axis theorem. .Nke a bụ ikpe.A na-eji usoro ahụ, yana ihe ndị ọzọ nke beam theory na oge gboo laminate theory [CLT], iji jikọta oge inertia na isi ike nke AMCB zuru oke na ngwaahịa ngosi dị ntakịrị nke dị mfe ijikwa na ndị ọzọ. na-eri-irè.Mgbe ahụ, anyị The Finite element analysis analysis [FEA] model which XCraft Inc. (Boston, Massachusetts, USA) mere ka e jiri mee ka imeziwanye nhazi nke nhazi ihe."A na-azụta akwa carbon fiber na-eji maka panel ule na ụdị AMCB site na Vectorply, na balsa core bụ nke Core Composites (Bristol, RI, US) mere.
Nzọụkwụ 1. Nke a ule panel na-egosiputa a 3 inch oghere dayameta simulate mmebi akara na etiti na rụkwaa gburugburu.Isi iyi foto maka usoro niile: Custom Teknụzụ LLC.
Kwụpụ 2. Jiri igwe igwe na-arụ ọrụ batrị na-ewepụ ihe mebiri emebi ma jiri taper 12: 1 mechie patch nrụzi.
"Anyị chọrọ ịme ka mmebi dị elu dị elu na bọọdụ ule karịa ka a na-ahụ n'elu akwa mmiri dị n'ọhịa," Bergen kọwara."Ya mere, usoro anyị bụ iji oghere oghere mee oghere dị sentimita 3 n'obosara.Mgbe ahụ, anyị na-ewepụ plọg nke ihe ahụ mebiri emebi ma jiri igwe igwe pneumatic ejiri aka mee ka ịchafụ 12: 1 mee ihe."
Crane kọwara na maka carbon fiber / epoxy nrụzi, ozugbo e wepụrụ ihe panel "mebiri" ma tinye ịchafụ kwesịrị ekwesị, a ga-egbutu prepreg na obosara na ogologo iji kwekọọ na taper nke ebe mebiri emebi."Maka nyocha anyị, nke a na-achọ ụzọ anọ nke prepreg iji mee ka ihe nrụzi kwekọrọ n'elu nke mbụ carbon panel na-adịghị emebi emebi.Mgbe nke ahụ gasịrị, mkpuchi mkpuchi atọ nke carbon / epoxy prepreg na-etinye uche na nke a Na akụkụ a rụziri.Igwe oyi akwa nke ọ bụla na-aga n'ihu na-agbatị 1 inch n'akụkụ niile nke oyi akwa ala, nke na-enye ibufe ibu nke nta nke nta site na "ihe dị mma" gbara ya gburugburu gaa na mpaghara a rụziri.Ngụkọta oge iji rụkwaa nrụzi a-gụnyere nkwadebe ebe ndozi, ịcha na idowe ihe mweghachi na itinye usoro ọgwụgwọ-ihe dịka awa 2.5.
Maka eriri carbon/epoxy prepreg, ebe a na-arụzi ebe a na-akwakọba oghere wee gwọọ ya na 210°F/99°C maka otu awa site na iji ihe mkpuchi ọkụ nwere batrị.
Ọ bụ ezie na nrụzi carbon / epoxy dị mfe na ngwa ngwa, ndị otu ahụ ghọtara mkpa ọ dị maka ngwọta dị mma karịa iji weghachi arụmọrụ.Nke a mere ka nyocha nke ultraviolet (UV) gwọọ prepregs."Mmasị dị na Sunrez vinyl ester resins dabeere na ahụmahụ ụgbọ mmiri gara aga na onye nchoputa ụlọ ọrụ Mark Livesay," Bergen kọwara."Anyị buru ụzọ nye Sunrez akwa iko quasi-isotropic, na-eji vinyl ester prepreg ha, wee nyochaa usoro ọgwụgwọ n'okpuru ọnọdụ dị iche iche.Na mgbakwunye, n'ihi na anyị maara na vinyl ester resin adịghị ka epoxy resin nke na-enye arụmọrụ adhesion nke abụọ kwesịrị ekwesị, yabụ a na-achọkwu mgbalị iji nyochaa ụdị njikọ njikọta akwa akwa dị iche iche wee chọpụta nke dabara maka ngwa ahụ.
Nsogbu ọzọ bụ na eriri iko enweghị ike inye otu ihe eji arụ ọrụ dị ka eriri carbon."E jiri ya tụnyere carbon / epoxy patch, a na-edozi nsogbu a site na iji ihe mgbakwunye iko / vinyl ester," ka Crane kwuru."Ihe mere e ji chọ naanị otu oyi akwa ọzọ bụ na ihe iko ahụ bụ ákwà dị arọ karị."Nke a na-emepụta patch kwesịrị ekwesị nke enwere ike itinye ma jikọta n'ime nkeji isii ọbụlagodi na oke oyi/oyi nke infield.Ngwọta na-enyeghị okpomọkụ.Crane kwuru na enwere ike ịrụcha ọrụ nrụzi a n'ime otu awa.
Egosiputala ma nwalee sistemu patch abụọ a.Maka nrụzi nke ọ bụla, ebe a ga-emebi emebi na-akara akara (nzọụkwụ 1), jiri oghere oghere, wee wepụ ya site na iji igwe igwe na-arụ ọrụ batrị (nzọụkwụ 2).Mgbe ahụ, bee ebe a na-arụzi ka ọ bụrụ 12: 1 taper.Hichaa elu nke ịchafụ na mmanya mmanya (nzọụkwụ 3).Na-esote, belata ihe nrụzi ahụ na nha ụfọdụ, tinye ya n'elu ebe a na-ehicha (nzọụkwụ 4) ma jikọta ya na ihe mkpuchi iji wepụ ikuku ikuku.Maka eriri iko / UV-curing vinyl ester prepreg, tinyezie oyi akwa ntọhapụ na mpaghara a rụziri ma jiri oriọna UV na-enweghị eriri gwọọ patch ahụ maka nkeji isii (nzọụkwụ 5).Maka eriri carbon/epoxy prepreg, jiri ihe nkedo akwadoro, otu bọtịnụ, batrị nwere ike ime ka mkpọ agụụ wee gwọọ ebe edoziziri na 210°F/99°C maka otu awa.
Nzọụkwụ 5. Mgbe ị na-etinye akwa peeling na ebe a na-edozi, jiri eriri UV na-enweghị eriri na-agwọta patch maka nkeji 6.
"Mgbe ahụ, anyị mere ule iji nyochaa nrapado nke patch na ikike ya iji weghachi ikike ibu nke ihe owuwu," Bergen kwuru."N'oge nke mbụ, anyị kwesịrị igosipụta ịdị mfe nke ngwa na ikike iji nwetaghachi ma ọ dịkarịa ala 75% nke ike.A na-eme nke a site na-ehulata isi anọ na 4 x 48 inch carbon fiber/epoxy resin na balsa core beam mgbe emezichara mmebi nke simulated.Ee.Akụkụ nke abụọ nke oru ngo ahụ jiri panel 12 x 48 inch, ma ga-egosipụta ihe karịrị 90% ike chọrọ n'okpuru ibu mgbagwoju anya.Anyị zutere ihe ndị a niile, wee see foto ụzọ nrụzi na ụdị AMCB.Otu esi eji teknụzụ na akụrụngwa infield wepụta ntụaka anya.”
Otu akụkụ dị mkpa nke ọrụ a bụ igosi na ndị novice nwere ike imecha nrụzi ahụ ngwa ngwa.N'ihi nke a, Bergen nwere echiche: "Ekwewo m nkwa igosi na kọntaktị teknụzụ abụọ anyị na ndị agha: Dr. Bernard Sia na Ashley Genna.Na nyocha ikpeazụ nke akụkụ mbụ nke ọrụ ahụ, arịọrọ m ka ọ ghara ịrụzi ya.Ashley nwere ahụmahụ mere nrụzi ahụ.N’iji ngwa na akwụkwọ ntuziaka anyị nyere, o tinyere ihe nkedo ahụ ma rụzie ya n’enweghị nsogbu ọ bụla.”
Ọnụọgụ 2 Igwe na-eme ka batrị na-arụ ọrụ nke ọma, igwe na-ekpo ọkụ ọkụ na-arụ ọrụ batrị nwere ike gwọọ eriri carbon / epoxy nrụzi na ntinye nke bọtịnụ, na-enweghị mkpa maka nrụzi ihe ọmụma ma ọ bụ ọgwụgwọ usoro usoro.Isi iyi onyonyo: Custom Technologies, LLC
Ihe mmepe ọzọ bụ isi bụ usoro ọgwụgwọ na-enye batrị (Njirimara 2)."Site na mmezi infield, ị nwere naanị ike batrị," Bergen rụtụrụ aka."Ngwaọrụ niile dị na ngwa nrụzi anyị mepụtara bụ ikuku ikuku."Nke a na-agụnye njikọ ọkụ na-arụ ọrụ batrị kwadoro site n'aka Teknụzụ Custom yana igwe na-ebubata igwe WichiTech Industries Inc. (Randallstown, Maryland, USA).Crane kwuru, "Ebu ụzọ hazie ihe eji ekpo ọkụ na-enye batrị ike iji mechaa ọgwụgwọ, yabụ ndị novice adịghị mkpa ịhazi usoro ọgwụgwọ ahụ," Crane kwuru."Ha kwesịrị pịa bọtịnụ ka ha mechaa rampụ kwesịrị ekwesị na sook."Batrị ndị a na-arụ ugbu a nwere ike ịdịru otu afọ tupu ha agbajie.
Na mmecha nke abụọ nke oru ngo, Custom Teknụzụ na-akwadebe nsochi mmezi amụma na ịnakọta leta mmasị na nkwado."Ebumnuche anyị bụ ịmalite teknụzụ a na TRL 8 wee weta ya n'ọhịa," Bergen kwuru."Anyị na-ahụkwa ike maka ngwa ndị na-abụghị ndị agha."
Na-akọwa nka ochie n'azụ nkwado eriri mbụ nke ụlọ ọrụ, ma nwee nghọta miri emi nke sayensị eriri ọhụrụ na mmepe n'ọdịnihu.
Na-abịa n'oge na-efe efe na nke mbụ, 787 na-adabere na ihe ọhụrụ na ihe ndị mejupụtara na usoro iji nweta ihe mgbaru ọsọ ya.
Oge nzipu: Sep-02-2021