Audi tau txiav txim siab ua lwm kauj ruam rau pem hauv ntej, hais txog kev tsim kho tsheb tsheb, nrog lub tswv yim uas tsis muaj dab tsi tshiab hauv kev lag luam tsheb tab sis qhov ntawd coj tau txiaj ntsig zoo. Tshawb nrhiav Audi's tshiab fiberglass springs.
Nyob rau tib lub sijhawm nrog kev nqis peev hauv kev txhim kho cov tshuab ua kom muaj txiaj ntsig zoo thiab cov khoom sib xyaw uas tso cai kom txo qhov hnyav, thaum ua kom cov txheej txheem rigidity ntawm chassis thiab lub cev, Audi rov tig mus rau cov ntaub ntawv sib xyaw, rau kev siv hauv lwm cov khoom.
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Audi tau cog lus los txhim kho thiab ua kom cov thev naus laus zis no, tag nrho nrog tib lub hom phiaj: kom txuag tau qhov hnyav, yog li txhim kho qhov nrawm thiab tuav nws cov qauv yav tom ntej.
Qhov no yog qhov tshiab fad ntawm Audi txoj kev tshawb fawb thiab kev loj hlob department: lub helical fiberglass thiab polymer reinforced compression springs . Ib lub tswv yim uas twb tau thov los ntawm Chevrolet, hauv Corvette C4 xyoo 1984.
Qhov kev txhawj xeeb loj zuj zus nrog qhov hnyav ncua kev kawm ntawv, thiab nrog kev cuam tshuam ntawm qhov hnyav hnyav ntawm kev ncua ntawm kev ua tau zoo thiab kev siv, ua rau Audi tsom mus rau kev txhim kho cov txheej txheem sib dua. Cov no yuav tsum ua kom pom tseeb ntawm qhov hnyav, txhim kho kev noj qab haus huv thiab cov lus teb zoo dua los ntawm nws cov qauv.
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Qhov kev siv zog engineering no los ntawm Audi, nrog Joachim Schmitt ntawm lub taub hau ntawm qhov project, pom qhov kev sib koom tes zoo tshaj plaws hauv Italian tuam txhab SOGEFI, uas tuav qhov sib koom patent rau thev naus laus zis nrog Ingolstadt hom.
Dab tsi yog qhov txawv ntawm cov pa steel springs?
Joachim Schmitt muab qhov sib txawv ntawm qhov kev xav: hauv Audi A4, qhov chaw ncua kev kawm ntawm lub qag pem hauv ntej hnyav txog 2.66kg txhua, cov fiberglass tshiab reinforced polymer (GFRP) springs tsuas hnyav 1.53kg txhua rau tib lub teeb. Qhov hnyav sib txawv ntawm ntau dua 40%, nrog rau tib theem ntawm kev ua tau zoo thiab cov txiaj ntsig ntxiv uas peb yuav piav qhia rau koj hauv ib pliag.
Cov GFRP tshiab no ua li cas?
Rov qab me ntsis mus rau dab tsi yog coil compression springs, lawv tau tsim los ua kom muaj zog thaum lub sij hawm compression thiab tawm mus rau hauv kev taw qhia ntawm kev nthuav dav. Lawv feem ntau yog tsim los ntawm steel hlau, nrog ib tug cylindrical zoo. Thaum nws yog ib qho tsim nyog yuav tsum siv lub zog torsional siab dua hauv qhov chaw me me, cov xov hlau yog molded nrog rau lwm cov duab, nrog rau qhov sib npaug ntawm cov helical, yog li tsim cov kauv ntawm txhua qhov kawg.
Cov qauv ntawm cov springs
Cov qauv ntawm cov springs tshiab no muaj cov tub ntxhais uas tsim los ntawm cov yob ntev ntawm fiberglass, interwoven thiab impregnated nrog epoxy resin, qhov tom qab lub tshuab yog lub luag hauj lwm rau wrapping cov spirals nrog ntxiv puas fibers, ntawm alternate kaum ntawm ± 45 °, txheeb ze. lub longitudinal axis.
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Qhov kev kho no yog qhov tseem ceeb tshwj xeeb, vim nws yog los ntawm kev sib cuam tshuam ntawm cov txheej txheem kev txhawb nqa uas nws yuav muab lub caij nplooj ntoos hlav ntxiv compression thiab torsion zog. Nyob rau hauv txoj kev no, lub torsional loads los ntawm lub caij nplooj ntoos hlav yog hloov dua siab tshiab los ntawm cov fibers rau hauv elasticity thiab compression rog.
Cov theem kawg ntawm kev tsim khoom
Nyob rau theem kawg ntawm kev tsim khoom, lub caij nplooj ntoos hlav tseem ntub thiab muag. Nws yog nyob rau ntawm no hais tias cov hlau alloy uas tsis tshua muaj melting kub yog qhia, thiab ces lub caij nplooj ntoos hlav nyob rau hauv GFRP yog ci nyob rau hauv lub qhov cub ntawm ntau tshaj 100 °, kom cov hlau alloy muaj peev xwm fuse nyob rau hauv kev sib raug zoo, nrog rau hardening ntawm lub fiberglass. .
Dab tsi yog qhov zoo ntawm cov GFRP springs, piv rau cov tsoos steel?
Ntxiv rau qhov pom tseeb qhov hnyav ntawm ib ncig ntawm 40% ib lub caij nplooj ntoos hlav, GFRP springs tsis cuam tshuam los ntawm corrosion, txawm tias tom qab ntau mais nrog khawb thiab tawg pov thawj hauv lawv cov qauv. Tsis tas li ntawd, lawv yog cov dej tsis huv, uas yog, tiv taus kev cuam tshuam nrog lwm cov khoom siv tshuaj abrasive, xws li cov khoom siv tu lub log.
Lwm qhov zoo ntawm cov GFRP springs no muaj feem xyuam rau lawv txoj kev ntseeg tau thiab kav ntev, qhov uas lawv tau pom nyob rau hauv cov kev ntsuam xyuas kom muaj peev xwm khiav tau 300,000 km yam tsis tau poob lawv cov elasticity, ntau tshaj lub neej muaj txiaj ntsig ntawm lawv cov neeg koom tes raug ncua, cov shocks absorbers. .
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Qhov no yog thawj txheej txheem uas Audi tau tsim nws cov qauv qauv, ua ntej pib tsim ntau txhiab ntawm cov khoom no txhua xyoo.
Raws li lub npe ntawm cov nplhaib, tsim cov springs nyob rau hauv cov khoom sib xyaw yuav tsum muaj zog tsawg dua li cov tsoos steel springs, txawm li cas los xij, lawv cov nqi kawg yog me ntsis siab dua, uas yog ib qho tseem ceeb uas yuav cuam tshuam lawv cov khoom loj rau ob peb xyoos ntxiv. Thaum kawg ntawm lub xyoo, Audi xav tias yuav tshaj tawm cov springs no rau cov qauv siab dua.