Kev hloov kho iav tuaj yeem txhim kho kev sib kis tau zoo thiab ua kom muaj zog iav. Kev hloov kho iav yog hais txog kev ntsuas thev naus laus zis kom paub meej cov hniav ntawm cov iav hauv ib qho me me kom nws deviate los ntawm theoretical hniav nto. Muaj ntau ntau hom kev hloov kho iav hauv qhov dav dav, raws li qhov sib txawv ntawm qhov kev hloov kho, kev hloov kho cov hniav tuaj yeem muab faib ua cov hniav hloov kho thiab kev hloov kho hniav.

Kev hloov kho hniav profile

Cov hniav profile yog me ntsis trimmed kom nws deviates los ntawm theoretical hniav profile. Kev hloov kho hniav profile suav nrog trimming, hauv paus trimming thiab hauv paus digging. Ntug trimming yog kev hloov kho ntawm cov hniav profile nyob ze ntawm tus hniav crest. Los ntawm kev txiav cov hniav, qhov cuam tshuam kev co thiab lub suab nrov ntawm cov hniav iav tuaj yeem txo qis, lub zog dynamic tuaj yeem txo, lub lubrication lub xeev ntawm cov hniav tuaj yeem txhim kho, thiab cov kua nplaum puas tuaj yeem ua rau qeeb lossis tiv thaiv. Rooting yog kev hloov kho ntawm cov hniav profile ze ntawm cov hauv paus hniav. Cov nyhuv ntawm cov hauv paus hniav trimming yeej zoo ib yam li ntawm ntug trimming, tab sis hauv paus trimming tsis muaj zog lub zog khoov ntawm cov hauv paus hniav. Thaum cov txheej txheem sib tsoo yog siv los hloov kho cov duab, txhawm rau txhim kho kev ua haujlwm ntawm kev ua haujlwm, cov iav me me qee zaum siv los hloov cov khoom sib txuam loj iav los txiav. Rooting yog kev hloov kho ntawm cov hauv paus kev hloov pauv ntawm cov iav hniav. Hardened thiab carburized hard-toothed iav yuav tsum tau hauv av tom qab kev kho cua sov. Txhawm rau kom tsis txhob sib tsoo kub hnyiab ntawm cov hauv paus hniav ntawm cov hniav thiab tswj cov txiaj ntsig zoo ntawm qhov seem compressive kev nyuaj siab, cov hauv paus hniav ntawm cov hniav yuav tsum tsis txhob muab av. hauv paus. Tsis tas li ntawd, lub vojvoog ntawm curvature ntawm cov hauv paus kev hloov pauv tuaj yeem nce ntxiv los ntawm kev khawb kom txo cov kev ntxhov siab ntawm cov hauv paus hniav.

Hloov kho cov hniav hlau

Cov hniav nto yog me ntsis trimmed nyob rau hauv cov kev taw qhia ntawm kab hniav kom nws deviate los ntawm theoretical hniav nto. Los ntawm kev hloov kho cov kev taw qhia ntawm cov hniav, qhov tsis sib npaug ntawm cov khoom thauj raws li kev sib cuag ntawm cov hniav iav tuaj yeem txhim kho, thiab cov kabmob muaj peev xwm ntawm cov iav tuaj yeem txhim kho. Txoj kev txiav hniav feem ntau suav nrog cov hniav kawg trimming, helix kaum trimming, nruas trimming thiab nto trimming. Cov hniav kawg thinning yog maj mam nyias cov hniav tuab mus rau qhov kawg ntawm ib los yog ob qho kawg ntawm cov iav hniav ntawm ib ntu me ntawm cov hniav dav. Nws yog txoj kev hloov kho yooj yim tshaj plaws, tab sis cov nyhuv trimming tsis zoo. Helix lub kaum sab xis trimming yog me ntsis hloov cov hniav kev taw qhia los yog lub helix lub kaum sab xis β, yog li ntawd qhov tseeb hniav nto deviates los ntawm theoretical hniav nto txoj hauj lwm. Helix lub kaum sab xis trimming muaj txiaj ntsig zoo tshaj qhov kev txiav hniav kawg, tab sis vim tias lub kaum sab xis ntawm kev hloov me me, nws tsis tuaj yeem muaj qhov cuam tshuam loj rau txhua qhov chaw ntawm cov hniav. Nruas trimming yog siv cov hniav trimming kom cov iav hniav bulge nyob rau hauv nruab nrab ntawm cov hniav dav, feem ntau symmetrical ntawm ob sab. Txawm hais tias lub nruas trimming tuaj yeem txhim kho qhov tsis sib xws ntawm cov khoom thauj ntawm cov kab sib txuas ntawm cov hniav iav, vim tias cov khoom xa tawm ntawm ob qhov kawg ntawm cov hniav tsis zoo ib yam, thiab qhov yuam kev tsis yog tag nrho raws li lub nruas zoo, cov nyhuv trimming tsis zoo tagnrho. Kev hloov kho saum npoo yog hloov kho cov hniav kev taw qhia raws li qhov tseeb eccentric load yuam kev. Xav txog qhov tseeb eccentric load yuam kev, tshwj xeeb tshaj yog xav txog thermal deformation, tus hniav nto tom qab trimming tej zaum yuav tsis ib txwm bulged, tab sis feem ntau yog ib tug nkhaus nto txuas nrog concave thiab convex. Cov nyhuv trimming saum npoo yog zoo dua, thiab nws yog ib qho zoo tagnrho trimming txoj kev, tab sis kev xam yog teeb meem ntau thiab cov txheej txheem yog ntau nyuaj.