Kev tsis sib haum xeeb vs Concentricity
Eccentricity thiab concentricity yog ob lub tswv yim lej ntsig txog geometry ntawm conic seem. Ob qhov tsis muaj feem cuam tshuam rau ib leeg thiab piav qhia txog cov duab conic. Cov ntsiab lus tau txais los ntawm ntau yam kev tshawb fawb thiab engineering.
Ntau txog Eccentricity (e)
Eccentricity yog ib qho kev ntsuas ntawm qhov sib txawv ntawm ib qho conic seem ntawm lub voj voog zoo meej. Qhov tseeb, cov seem conic yog categorized siv lub eccentricity raws li ib tug parameter. Lub voj voog tsis muaj eccentricity (e=0), ellipse muaj eccentricity ntawm xoom thiab ib qho (0<e1).
Lub linear eccentricity ntawm ib qho conic seem (c) yog qhov kev ncua deb ntawm qhov nruab nrab ntawm lub conic seem thiab ib qho ntawm nws cov foci. Ces lub eccentricity ntawm ib tug conic seem yuav txhais tau raws li qhov piv ntawm cov linear eccentricity thiab qhov ntev ntawm lub semi-loj axis (a), e=c/a.
Tsawg ntawm kev siv ntau ntawm eccentricity raws li kev ntsuas yog tshuab tsim, orbital mechanics, thiab fiber optics manufacturing.
Hauv engineering, ib qho kev txhawj xeeb loj thaum tsim lossis tsim lub voj voog lossis ib lub cylindrical tivthaiv yog qhov zoo tshaj plaws ntawm cov voj voog. Qhov no yog ntsuas los ntawm eccentricity ntawm tus ntoo khaub lig seem. Nyob rau hauv orbital mechanics, eccentricity muab lub degree ntawm elongation ntawm lub orbit.
Ntau txog Kev Sib Tham
Concentric txhais tau tias ob lossis ntau daim duab sib koom tib qhov chaw, feem ntau yog lub voj voog. Lub tswv yim muaj qhov tseem ceeb ntawm kev siv vim tias, hauv kev tsim khoom thiab kev tsim vaj tsev, nws muab qhov ntsuas qhov sib xws ntawm cov qauv tsim.
Piv txwv li, xav txog ib lub tshuab luam ntawv (lub tshuab luam ntawv), uas yog lub tog raj kheej kheej kheej uas muaj ntau txheej txheej ntawm cov ntaub ntawv. Yog tias txhua txheej tsis sib haum xws li qhov nruab nrab ntawm txhua txheej coincides hla tib axis, cov menyuam yuav tsis ua haujlwm zoo. Tib lub tswv yim siv rau iav tshuab, fiber ntau optic cables thiab piping systems.
Thaum xav txog ob lub voj voog, concentricity tuaj yeem tsim raws li qhov sib piv ntawm qhov sib txawv yam tsawg kawg nkaus ntawm lub radii mus rau qhov sib txawv siab tshaj plaws: i.e. C=Dmin/Dmax.
Qhov txawv ntawm Eccentricity thiab Concentricity yog dab tsi?
• Eccentricity yog qhov ntsuas ntawm elongation ntawm ntu conic.
• Concentricity yog qhov ntsuas ntawm kev sib dhos ntawm ob lossis ntau daim duab ntawm tib lub axis.
