Tururble hniav tuaj yog qhov tseem ceeb ntawm cov cav dav hlau, nrog qhov kub thiab txias, thiab cov qauv hluav taws xob hnyav. Qhov zoo ntawm kev kuaj xyuas thiab kev saib xyuas yog ze rau qhov ua haujlwm ruaj khov thiab kev pabcuam lub neej ntawm kev ua haujlwm. Daim ntawv no tshawb txog kev tshuaj xyuas thiab kev saib xyuas cov dav hlau cav tuaj, thiab kev ua tsis tiav kev siv tshuab hluav taws xob thiab txij nkawm thev naus laus zis ntawm lub dav hlau tshuab tuaj.
Hauv kev tsim ntawm cov hniav turbine, cov ntaub ntawv tshiab nrog cov khoom siv siab dua los ntawm kev txhim kho cov tshuab ua haujlwm, yog li txhawm rau txhim kho lub cav thrust-rau-hnyav piv. Lub tshuab puab yog ib qho kev hloov pauv ntawm cov hniav sib hloov, yog li hloov pauv lub hauv paus thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab cov kab hniav sib hloov, thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab cov hniav sib hloov, thiab kev hloov pauv ntawm lub ntsej muag hniav yog ntau dua li ntawm cov hniav hniav. Nws yog ib qho tseem ceeb heev rau nruab lub cav cua hniav hniav hniav ntawm lub turbine disk. Lub "fir-tsob ntoo-puab" Tenon yog lub rotor ntawm cov hloov roj niaj hnub. Nws tau ua tiav tiav thiab tsim los xyuas kom meej tias txhua tus flanges tuaj yeem dais lub thauj khoom muaj tusyees. Thaum lub turbine yog nyob ruaj ruaj, cov hniav muaj qhov ua tau zoo ntawm tus hniav zuaj, thiab thaum lub tshuab siv hluav taws xob tig mus rau lub disk vim yog cov nyhuv centrifugal. Cov khoom siv impeller yog qhov tseem ceeb rau kev ua kom muaj kev ua tau zoo thiab kev ntseeg tau ntawm lub turbine. Nyob rau hauv thaum ntxov hnub, deformed high-kub alloys tau siv thiab tsim los ntawm kev quavms. Nrog kev nce qib nruam ntawm lub cav tsim qauv thiab preurisy tuaj yeem hloov los ntawm deformed alloys rau ib lub lead ua ke, thiab cov cua sov tsis kam ntawm cov hniav tau zoo heev. Nickel-based ib leeg siv lead ua superalloys tau siv dav hauv kev tsim khoom kub kawg ntawm cov tshuab huab cua zoo heev. Yog li ntawd, cov kev tshawb fawb hauv kev soj ntsuam thiab kev kho cov qhov tseem ceeb rau kev txhim kho cov kev nyab xeeb ntawm kev ua haujlwm morphology thiab qib kev puas tsuaj ntawm cov tuaj.
Tsis ua hauj lwm hom ntawm lub dav hlau cav tuaj
Hniav tsis tshua muaj kev vam meej nkees zom
Hauv kev ua haujlwm tiag tiag, tsis muaj kev hloov pauv ntawm lub rotor tuaj yeem tshwm sim, tab sis nyob rau hauv peb qhov xwm txheej nram qab no, nkees nkees ua kom qaug zog yuav tshwm sim. Daim duab 1 yog daim duab qhia ntawm cov hniav sib tsoo.
(1) Txawm hais tias qhov kev ntxhov siab ua haujlwm ntawm ntu txaus ntshai yog me dua li cov paib lub zog ntawm cov khoom, muaj cov tsis xws luag loj ntawm ntu txaus ntshai. Hauv thaj chaw no, vim muaj qhov tshwm sim ntawm qhov tsis xws luag, qhov loj dua lub zog ntawm cov khoom, uas ua rau muaj kev sib txawv ntawm cov hniav tsis muaj zog.
(2) Vim cov kev txiav txim siab tsis zoo, kev ntxhov siab ua haujlwm ntawm cov hniav ntawm cov khoom txaus ntshai yog ze rau lossis tshaj tawm lub zog los ntawm cov khoom. Thaum muaj qhov tsis xws luag nyob rau hauv qhov txaus ntshai, cov hniav yuav yauv mus ua kom rog tsawg-kev ua kom poob qis.
(3) Thaum cov hniav muaj cov xwm txheej txawv txav xws li nplaim taws, thiab overheating muaj txiaj ntsig zoo dua li nws cov txiaj ntsig lub zog, ua rau muaj kev chim siab ntau dua los ntawm cov hniav. Tsawg-lub voj voog ua kom qaug zog yog feem ntau tshwm sim los ntawm kev tsim qauv, thiab feem ntau tshwm sim nyob ib ncig ntawm cov hniav hniav. Tsis muaj qhov pom tseeb ARC ntawm qhov qis qis-voj voog.
Hniav rov qab Realional Resonance Loob Cracture tsis ua haujlwm
Kev ua kom lub zog loj heev yog hais txog kev tawg uas tshwm sim hauv qab ntawm cov hniav, thiab muaj cov yam ntxwv uas sawv cev hauv qab no:
(1) Kaum Tent tshwm sim tshwm sim ntawm kev rov pib dua ntawm kev rov ua haujlwm ntawm.
(2) ib qho kev sib tw qaug zog qaug zog tuaj yeem pom ntawm cov hniav, tab sis cov qaug zog currve yog heev nyias.
(3) Lub pob txha me me pib los ntawm sab nraum qab ntawm cov hniav looj phiab, thiab thaj chaw nkees nkees nyob hauv thaj chaw loj ntawm qhov chaw tawg.
Muaj ob qho laj thawj tseem ceeb rau torsional qaug zog tawg pleb ntawm cov hniav: Ib qho yog xeb ntau dhau ntawm cov hniav sab nraud lossis qhov cuam tshuam ntawm kev quab yuam sab nraud.
Hniav kub kub npau taws thiab thermal kev puas tsuaj ua kom qaug zog ua tsis tiav
Turbine rotor hniav ua haujlwm nyob rau hauv ib puag ncig kub thiab muaj kev ntxhov siab, uas ua rau nkag siab thiab qaug zog ntawm cov hniav (saib daim duab 2). Rau qhov kub ntxhov ua kom muaj zog nqus tau cov hniav, cov xwm txheej hauv qab no yuav tsum tau ntsib:
(1) Lub cev qaug zog ua kom cov hniav feem ntau qhia cov yam ntxwv ntawm intergranular bacture.
(2) qhov ntsuas kub ntawm cov hniav tawg ntawm cov hniav yog siab dua qhov txwv tsis pub tshaj ntawm cov khoom;
(3) Lub cev nqaij tawv muaj peev xwm tiv thaiv cov hniav uas tsis muaj peev xwm tiv thaiv lub sentrifugal tensile kev ntxhov siab ntawm cov square kev txwv lossis ntau tshaj qhov txwv tsis pub tshaj ntawm qhov kub no.
Feem ntau, nkees sim ntawm rotor tuaj ntawm cov kub muaj tsawg heev, tab sis hauv kev siv tsis tshua muaj tshwm sim los ntawm kev puas tsuaj thermal rau lub rotor yog sib xws. Thaum lub cav ua haujlwm, kev overheating lossis overburning ntawm cov khoom siv vim luv luv kev ua haujlwm luv luv yog hu ua kev puas tsuaj ntau dhau. Thaum kub siab, qaug zog tawg yog nquag tshwm sim hauv hniav. Qoob ntais los ntawm qhov kub kub kev puas tsuaj muaj cov yam ntxwv tseem ceeb hauv qab no:
(1) Lub pob txha muaj feem ntau nyob hauv qhov chaw kub siab tshaj plaws ntawm cov hniav, txiav kom cov hniav axis.
(2) Lub pob txha pib los ntawm qhov chaw nyob hauv thaj chaw, thiab nws cov ntoo khaub lig yog tsaus thiab muaj qib siab ntawm oxidation. Cov hla kev hla txuas ntawm seem txuas ntxiv yog qhov ncaj nraim thiab xim tsis zoo li tsaus ua qhov chaw.
Tsis ua hauj lwm kho thev naus laus zis ntawm lub dav hlau cav tuaj
On-board borescope tshuaj xyuas
On-board borescope tshuaj xyuas yog ntsuas kev tshawb xyuas lub tshuab luam yeeb los ntawm kev sojntsuam hauv lub cav Turbine. Cov thev naus laus zis no tsis xav tau kev rho tawm ntawm lub cav thiab tuaj yeem ua tiav ncaj qha rau ntawm lub dav hlau, uas yooj yim thiab nrawm. BORDES SMERCOME YUAV TSUM TAU TXAIS KEV HLUAV TAWS, Corrosion thiab kev noj qab haus huv ntawm lub tshuab luam yeeb tu, yog li ua kom muaj kev lag luam zoo ntawm lub cav. Daim duab 3 qhia txog kev tshuaj xyuas lub borescope.
Kev Kho Mob Ua Ntej Ua ntej Kev Tshuaj Xyuas Hauv Kev Kho Dua Rhiav
Qhov saum npoo ntawm lub tshuab luam yeeb tau them nrog kev tso nyiaj tom qab kev sib txuas, cov txheej txheem thermal corrosion tsim los ntawm high-kub oxidation corrosion. Cov pa roj carbon yuav nce phab ntsa tuab ntawm cov hniav, ua rau hloov pauv ntawm cov thawj kev ua haujlwm airflow, yog txo cov kev ua tau zoo thermal corrosion yuav txo cov khoom siv me me ntawm cov tuaj; Thiab vim muaj cov pa roj carbon tso, kev puas tsuaj rau cov hniav ua saum npoo av yog kev ua tsis ncaj, ua kom pom qhov nyuaj. Yog li ntawd, ua ntej saib xyuas thiab kho cov hniav, cov pa roj carbon tso yuav tsum tau ntxuav.
Hniav Kev Kuaj Xyuas
Yav dhau los, "cov seev tawv" Hom no yooj yim, tab sis nws yog yooj yim cuam tshuam los ntawm tib neeg kev cuam tshuam thiab muaj qhov tseeb thiab maj nrawm nrawm nrawm. Tom qab, raws li cov tshuab ntsuas sib koom ua ke, ib daim ntawv thov rau microcomputer tsis siv neeg tswj tau sau, thiab ntsuas cov txheej txheem rau cov hniav qhov ntev ntawm cov hniav tau tsim. Los ntawm cia li kuaj cov hniav thiab muab piv rau nws nrog cov qauv hniav hniav sib tw tau muab rau txiav txim siab cov hniav uas xav tau. Txawm hais tias tus ua ke ntsuas cov twj paj nruag ntawm cov sib txawv ntawm cov thev naus laus zis, feem ntau ib rab riam phom, feem ntau muaj ib rab riam phom, feem ntau muaj ib rab riam phom, feem ntau ib rab riam yuav raug kuaj pom hauv 1 feeb, thiab muaj lub peev xwm nthuav dav. Los ntawm kev kho tus txheem txheem hniav hniav qauv, ntau hom hniav tuaj yeem kuaj pom. Daim duab 4 qhia txog kev sib tham ncaj ncees.
Aircraft Lub Cav Hniav Tu
Thermal Tsuag Tshuab
Thermal txau thev naus laus zis yog kom hlawv cov fibers lossis hmoov cov khoom rau lub xeev molten, txuas ntxiv tso rau lawv ntawm cov chaw lossis substrates kom muaj tshuaj tsuag.
(1) Cov ris-resistant txheej
Hnav-resistant txheej xws li cobalt-raws li, Nickel-based, thiab tungsten carbide-based, thiab lwm qhov kev sib txhuam, thiab lwm qhov kev sib txhuam ntawm cov kev sib txhuam ntawm cov dav hlau tshuab, yog li kev txhim kho kev ua haujlwm thiab kev pabcuam lub neej.
(2) Cov txheej kub-resistant
Txhawm rau kom nce thrust, niaj hnub cov dav hlau engins xav tau ntau qhov kub ua ntej lub turbine mus rau qhov siab tshaj plaws. Nyob rau hauv txoj kev no, kev ua haujlwm kub ntawm lub turbine li yuav nce raws li. Txawm hais tias cov ntaub ntawv kub-resistant yog siv, nws tseem nyuaj kom tau raws li qhov yuav tsum tau siv. Cov txiaj ntsig kev sim coj ua qhia tau qhia tias kev thov cov txheej txheem kub tiv thaiv tshav kub tuaj yeem txhim kho cov cua sov tuaj yeem txhim kho thiab tawg ntawm qhov chaw.
(3) Txheej xwm txawv txav
Hauv cov dav hlau niaj hnub no, lub turbine yog tsim los ntawm cov ua haujlwm muaj ntau yam ntawm ntau tus kab rov tav stator blades thiab ib lub rotor hniav tsau rau ib lub disc. Txhawm rau txhim kho kev ua haujlwm ntawm lub cav, qhov kev ncua deb ntawm ob feem ntawm stator thiab lub rotor yuav tsum raug txo kom ntau li ntau tau. Qhov sib txawv no suav nrog "qhov sib txawv" ntawm rotor taub thiab cov kis las ruaj khov, thiab "theem sib pauv" ntawm txhua theem ntawm lub rotor thiab lub casing. Txhawm rau kom txo cov cua tougically tshwm sim los ntawm ntau qhov sib txawv, cov khoob yog qhov ua yuam kev thiab kev teeb tsa qhov tsis muaj peev xwm nyuaj rau kev ua tiav; Tsis tas li ntawd, nyob rau hauv kev kub siab thiab kev kub ceev, lub log kuj tseem yuav txav mus kom ntev, ua rau cov hniav ua kom "loj hlob" radially. Vim khoov li deformation, thermal expansion thiab contraction ntawm workpiece tau siv los ua kom nws muaj ntau tshaj plaws yog siv los ua kom muaj ntau lub tsho tshaj ntawm sab saum toj ntawm cov hniav. Thaum cov khoom sib hloov rub tawm tsam nws, txheej yuav tsim cov teeb meem kev ua kom zoo, yog li txo qhov sib txawv rau qhov tsawg kawg nkaus. Daim duab 5 qhia cov tshuab txau tshuab cua tshuab.
Tua puab tsaig
Raug tua peening technology siv cov project-ceev kom muaj zog ntawm cov khoom lag luam thiab ua kom muaj zog ntxiv rau lub zog ntawm cov khoom lag luam thiab txo cov kev ntxhov siab ntawm cov khoom siv. Daim duab 6 Qhia cov hniav tom qab tua cov npuaj.
(1) Plhaub clicken
Nqus pob zeb ua kom huv peening technology siv centrifugal quab yuam kom tsim lub saum npoo ntxiv nrog rau qee qhov tuab ntawm lub workpiece. Txawm hais tias muab cov tshuaj txhuam ua kom qhuav nqaij qeeg muaj cov cuab yeej siv yooj yim, nws tseem muaj teeb meem xws li cov hmoov av tsis huv, thiab muaj kev tiv thaiv ntau thaum lub sijhawm ntau ntau.
(2) Dej Tua Maum Nroj
Dej Tua Mateening muaj tib yam ntxiv dag zog hluav taws xob nrog rau kev txhaj tshuaj tawg. Qhov sib txawv yog tias nws siv cov kua dej ceev ceev es tsis txhob txhaj tshuaj, yog li txo qhov chaw ntawm cov plua plav rau ntawm ib puag ncig ua ke.
(3) Qeeb Mick ntxiv dag zog
American 3m lub tuam txhab tau tsim kho hom click tshiab noutive Canening cov txheej txheem. Nws txoj kev ntxiv dag zog yog kom siv lub phaj teb nrog txhaj tshuaj tas mus tawm tsam cov hlau nto ntawm kev kub ceev rau kev ua kom muaj kev kub zuj zus. Piv nrog tua peening, nws muaj qhov zoo ntawm cov khoom siv yooj yim, siv tau yooj yim, muaj kev ua haujlwm siab, kev lag luam thiab kav ntev thiab kav ntev. Teb phaj ntxiv lawm txhais tau tias thaum lub ntsej muag kub ceev tsoo lub ntsej muag, ntawm cov hniav uas nrawm nrawm ntawm ib qho tob. Cov tuab ntawm deformation txheej yog hais txog qhov cuam tshuam rau lub zog ntawm lub projectpiece cov khoom, thiab tuaj yeem ncav cuag {{{{{4}. 75 hli. Los ntawm kev kho cov kev txhaj tshuaj peening cov txheej txheem, qhov tsim nyog tuab ntawm deformation txheej tuaj yeem tau txais. Raws li kev txiav txim ntawm kev txhaj tshuaj peening, thaum cov yas cais tawm tshwm sim rau ntawm cov hniav sab, qhov chaw nyob ib sab tseem yuav deform. Txawm li cas los xij, piv nrog rau saum npoo, deformation ntawm cov substrace yog me dua. Tsis tas yuav mus txog cov txiaj ntsig pom, nws tseem nyob hauv cov txheej txheem sib txawv ntawm cov npoo thiab qis dua qhov tsis sib xws, uas tuaj yeem ua rau muaj kev ntxhov siab ntawm cov khoom siv tom qab tshuaj tsuag. Cov txiaj ntsig kev sim siab qhia tau tias muaj kev ntxhov siab rau saum npoo av tom qab txhaj tshuaj chanen, thiab ntawm qee qhov kev ntxhov siab, feem ntau cov kev ntxhov siab tshwm sim ntawm lub subsurface. Residual kev ntxhov siab nyob rau saum npoo yog ob peb zaug uas ntawm subsurface. Qhov kev txhawb nqa kev ntxhov siab no yog qhov muaj txiaj ntsig zoo heev txhawm rau txhim kho kev qaug zog thiab corrosion tsis kam. Yog li ntawd, tua peenate technology plays ib qho tseem ceeb tshaj plaws hauv kev ncua lub neej ntawm cov khoom lag luam thiab txhim kho cov khoom lag luam zoo.
Txheej Kho
Hauv cov dav hlau tshuab, ntau cov txiaj ntsig siab siv tshuab los txhim kho lawv cov anti-oxidation, tiv thaiv kev tiv thaiv corrosion, thiab hnav-resistant yam ntxwv; Txawm li cas los xij, vim tias cov hniav yuav raug puas tsuaj los sib txawv thaum siv thaum siv, lawv yuav tsum tau kho thaum lub sijhawm dai hniav ua ke thiab tom qab ntawv thov cov txheej tshiab ntawm txheej.
