Cov fais fab ua kom muaj roj ntau dua qhov sib tw tau raws li kev xav tau ntawm lub tsheb npav
Nrog rau tsis muaj zog txaus thiab muaj paug thaj tsam, kev xav tau siab dua raug muab tso rau kev tsim kho kev lag luam. Kev hnav lub cev yog qhov tseem ceeb. Peb txoj kev teeb pom kev zoo yog cov ntaub ntawv tsim khoom, qauv kev tsim kho kom zoo thiab kev tsim cov khoom tsim, uas cov ntaub ntawv hloov yog qhov zoo tshaj plaws, kev siv cov tshuab fiber ntau coj los siv hauv kev lag luam siab xws li aviation, aerospace, racing , thiab lwm yam vim lawv qhov kev siab tawv, tshwj xeeb muaj zog thiab cov cwj pwm zoo zog zoo. Nyob rau hauv xyoo tsis ntev los, nws kuj tau siv raws li ib tug khoom hnav nyob rau hauv lub teeb tsim ntawm tshiab lub zog tsheb.
Cov kab mob carbon fiber reinforced composites muaj cov khoom xws li anisotropy, nro thiab compression asymmetry thiab cov nyhuv tawm cov teebmeem. Cov kev tshawb fawb ntawm nws txoj kev xav thiab daim ntawv thov yog dav qhia. Kev ntsuam xyuas quas-zoo li qub thiab dynamic ntawm carbon fiber reinforced vaj huam sib luag square feem ntau yog nqa tawm. Qhov teebmeem ntawm cov duab tawb ntawm cov square tub yees, phaus cov feem ntim thiab feem ntau ntawm cov khoom sib tsoo thiab cov nqes hluav taws xob muaj kev soj ntsuam. Numerical simulation thiab kev sim siv. Txoj kev tshawb no muaj ntau hom fiber ntau dua ntxiv ntawm cov khoom siv hluav taws xob kom paub tseeb tias qhov kev xaiv tsis ua tiav yog qhov tseem ceeb ntawm qhov kev twv ua ntej ntawm kev sib koom tes. Txawm li cas los xij, muaj ob peb cov kev tshawb fawb ntawm qhov kev tsim kho ntawm cov roj carbon fiber reinforced composites thov kom muaj kev sib tsoo ntawm lub cev cov txheej txheem. Kev siv ntau lub cev siv los tsim cov qauv ntawm cov roj fiber reinforced composite khoom thiab cov roj fiber reinforced composite fais fab tuag cev cev pob txha uas ua tau raws li kev tsim tsoo tsim kev tsim, tsim kom zoo heev txo lub cev zoo.
Lub kaw lus bumper yog lub ntsiab load-bearing thiab lub zog absorbing tus tswv cuab nyob rau hauv kev sib tsoo tsawg-ceev ntawm lub tsheb. Nws plays lub luag haujlwm tseem ceeb hauv kev tiv thaiv lwm qhov ntawm lub tsheb thiab kev nyab xeeb ntawm cov neeg nyob hauv. Daim ntawv ua muaj zog (high-strength sheet molding compound) (SMC) yog siv los hloov cov khoom seem boomer. Cov khoom siv hlau yog raws le simulation tsom kom optimize lub thickness thiab cov qauv ntawm SMC bumper qauv. Raws li kev pov thaiv qhov kev sib tsoo, qhov kev txiav txim siab zoo yog txo los ntawm 29% piv nrog tus thawj high-strength hlau bumper; kev saib xyuas ntawm kev sib tsoo thiab kev ua haujlwm txheej txheem Kev txhuas txhuas zoo yog tsim. Lub phab ntsa ntawm cov kab nruas bumper yog optimized los ntawm kev ntsuam xyuas hauv nruab nrab hauv nruab nrab ntawm lub cev thiab cov lus teb kom haum. Thaum tsim ib lub qauv siv bumper siv cov khoom siv fiber ntau reinforced composite, nws yog qhov yuav tsum tau xav txog cov yam ntxwv ntawm cov khoom siv sib xyaw thiab cov vaj tse thiab cov qauv kev ruaj ntseg ntawm lub nrooj bumper.
Yuav kom kawm txog cov kev cai ntawm kev tsim qauv ntawm ib lub tsheb fais fab thiab lub tuam tsev ntawm lub tsev tsim, qhov tseem ceeb ntawm cov roj fiber ntau dua tshiab thooj txhij ntawm lub thawv boomer raug tsim thiab, thiab qhov tsawg kawg nkaus ntawm lub cev muaj zog boom optimized. Cov kev siv, los ntawm Latin hypercube sampling method approximate modeling technology thiab caj hauv algorithm rau hnav tsim ntawm bumper qauv, thiaj li muab siv rau lub teeb tsim ntawm cov fiber ntau reinforced resin raws li (CFRP) kab bumper. Cov kev tshawb fawb tau raug coj los soj ntsuam cov quas-static thiab dynamic mechanical zog ntawm cov roj fiber ntau zog dua resin matrix composites. Lub teeb pom kev zoo coj los sib txuas nrog cov qauv siv hluav taws xob lub cev yog tsim los rau kev tsim khoom tsim thiab tsim kev tsim ntawm lub hwj huam ntshiab fais fab. Raws li cov caij nyoog simulation simulation, kev sib tsoo yog siv los ua ib qho kev txwv. Kev tsim thiab kev tsim kho ntawm qauv.
