Txoj kev loj hlob keeb kwm ntawm log tsheb racks tuaj yeem taug qab rov qab mus rau Industrial Revolution. Raws li kev lag luam tsheb tsim, kev tsim thiab kev ua haujlwm ntawm cov log tsheb racks tseem txuas ntxiv mus. cov
kev loj hlob ntxov
Nyob rau hauv lub xyoo pua puv 19, nrog rau kev siv ntau ntawm cov cav tov, qhov kev thov rau lub log thiab cov log tsheb tau nce ntau heev. Cov log tsheb thaum ntxov yog ua los ntawm cov ntoo, hlau thiab lwm yam ntaub ntawv, nrog rau cov qauv yooj yim thiab tsis muaj zog. Cov log tsheb thaum ntxov no feem ntau yog siv hauv kev lag luam thiab kev thauj mus los kom tau raws li cov kev thauj khoom yooj yim thiab kev txhawb nqa.
Modernization txheej txheem
Nkag mus rau hauv lub xyoo pua 20th, nrog rau kev loj hlob sai ntawm kev lag luam tsheb, kev tsim thiab cov ntaub ntawv ntawm cov log tsheb thav duab kuj tau hloov pauv tseem ceeb. Nyob rau xyoo 1903, JF Parma tau tsim cov ntaub ntawv twill. Cov khoom siv no muaj kev hnav zoo heev thiab siv dav hauv kev tsim cov log tsheb, ua kom ntev kev pab cuam lub neej ntawm cov log tsheb. Qhov kev tsim kho thev naus laus zis no tau txhawb nqa kev yug me nyuam ntawm cov log tsheb tsis zoo thiab txhawb ntxiv kev txhim kho ntawm cov log tsheb.
Niaj hnub nimno technology thiab innovation
Nyob rau hauv nruab nrab -20th caug xyoo, lub invention ntawm radial log tsheb yog ib tug loj breakthrough nyob rau hauv log tsheb technology. Xyoo 1946, Michelin tau qhia cov log tsheb radial. Lub log tsheb tsim no tau nce lub neej kev pab cuam los ntawm 30 mus rau 50% thiab txo cov tsheb siv roj. Qhov nrov ntawm cov log tsheb radial tau tsav kev tsim kho tshiab hauv cov log tsheb tsim, xav tau ntau dua qhov tseeb thiab lub zog 34.
Cov ntawv thov niaj hnub thiab cov yam ntxwv
Niaj hnub nimno log tsheb khib tsim tsom rau lub teeb yuag, siab zog thiab kav ntev. Kev txhim kho hauv cov ntaub ntawv tshawb fawb, xws li kev siv cov alloys muaj zog thiab cov ntaub ntawv sib xyaw, tau ua rau cov log tsheb sib zog thiab ruaj khov dua. Tsis tas li ntawd, nrog kev nce ntawm cov tsheb fais fab, kev tsim cov log tsheb racks kuj yuav tsum tau xav txog kev teeb tsa thiab kev tiv thaiv cov roj teeb pob, uas ntxiv dag zog rau kev nce qib ntawm lawv cov qauv tsim thiab kev tsim technology.