Nrog rau txoj kev loj hlob sai ntawm kev lag luam tsheb, kev tsim khoom txhua xyoo thiab cov tswv cuab ntawm cov tsheb txuas ntxiv mus ntxiv, ua rau lub ntiaj teb kev kub ntxhov ntawm lub zog thiab cov teeb meem ntawm ib puag ncig muaj kuab paug txuas ntxiv mus ntxiv. Txo cov pa roj carbon emissions ntawm tag nrho lub neej voj voog ntawm tsheb tau dhau los ua qhov teeb meem tseem ceeb uas lub ntiaj teb kev lag luam tsheb yuav tsum tau daws.
Lub Koom Haum Ntiaj Teb Txhuas tau taw qhia tias txhua 10% txo qis hauv lub tsheb loj tuaj yeem txo cov roj noj los ntawm 6% mus rau 8%. Nyob rau tib lub sijhawm, hauv kev lag luam automotive, tsheb teeb pom kev zoo tuaj yeem pab cov tsheb cav ib txwm txo qis kev siv roj lossis hluav taws xob tsheb nce mais. Qhov no kuj yog ib txoj hauv kev tseem ceeb los txhawb lub zog txuag tsheb thiab txo qis emission. Ntawm ntau yam tshiab lub teeb yuag thiab lub zog muaj zog siv hauv cov qauv tsim qauv, cov ntaub ntawv carbon fiber ntau muaj qhov zoo ntawm qhov muaj zog tshwj xeeb thiab nruj nruj. Nyob rau tib lub sijhawm, lawv muaj cov cua kub zoo, cov kua qaub thiab alkali corrosion tsis kam thiab tsis muaj corrosion kuj. Thermal expansion coefficient, zoo meej lub zog nqus thiab lwm yam zoo ua rau nws yog thawj qhov kev xaiv rau lub teeb yuag tsim ntawm lub tsheb sab nrauv thiab sab hauv.
Lub tsheb hood yog ib qho tseem ceeb ntawm lub tsheb lub cev thiab muaj lub luag haujlwm xws li kev tiv thaiv lub cav thiab cais cov suab nrov. Cov ntaub ntawv carbon fiber ntau yog siv rau hauv kev tsim lub tsheb hoods, uas tuaj yeem txo qhov hnyav ntawm lub tsheb hoods thiab txo qhov hnyav ntawm lub cev tsheb. Nrog rau txoj kev loj hlob sai ntawm carbon fiber composite manufacturing technology, txheej txheem thev naus laus zis, thiab cov lej simulation thev naus laus zis hauv tsev thiab txawv teb chaws, cov txheej txheem thiab txheej txheem tsim kev ua kom zoo ntawm lub tsheb carbon fiber composite hoods tau nyiam ntau tus kws tshawb fawb kom mob siab rau lawv tus kheej.
The laminate structure design of the automotive carbon fiber composite hood and the single-layer engineering constants have a significant impact on the overall stiffness of the hood. Duan Chengjin et al. designed a hybrid sandwich structure of carbon fiber and glass fiber laminates (3K carbon fiber plain woven cloth as the surface layer, glass fiber cloth as the internal laminate) for automobile hood components. The quality of the automobile hood components is only It is 2.75kg, which is 4kg lighter than the original metal car hood. The research results show that the interlayer hybrid sandwich structure laminate design achieves controllable cost and the structural strength meets the needs of carbon fiber composite hood laminate structure design. Li Hao used ABAQUS software to conduct computer-aided engineering (CAE) design of the carbon fiber composite hood. Through static model analysis, he found that the four engineering constants (E1, E2, v12, G12) of the carbon fiber composite material single level are closely related to the carbon fiber composite engine. There is a certain correlation between cover stiffness, and the order of its influence is: G12>E2>E1>v12.
Cov khoom tshawb fawb tshiab tshaj plaws yog siv ntau theem kev sib koom ua kom zoo tshaj plaws tsim qauv ntawm cov tswv yim tsim, kev sim cov khoom siv thiab cov txheej txheem tsim kom kawg ua tiav cov qauv tsim ntawm cov pa roj carbon fiber ntau hoods thaum ntsib ntau yam khoom siv thiab cov txheej txheem tsim khoom.
