Lub tog hauv ncoo rau peb, lossis yuav ua li cas 3-lub tog raj kheej cav yog mounted
Cov tuam txhab tsheb tab tom nthuav qhia peb lub tog raj kheej xyaw rau hauv lawv qhov kev muab. Txawm hais tias cov chav tsev no siv roj tsawg dua piv rau lawv cov plaub-lub tog raj kheej counterparts, ntawm qhov tod tes, lawv ua rau muaj ntau yam teeb meem cuam tshuam nrog lawv cov mounting ntawm lub tsheb thav duab.
Qhov teeb meem yog dab tsi?
Qhov txo qis ntawm cov thooj voos kheej kheej yuav tsum tau siv cov txheej txheem damping tsim nyog, suav nrog cov shafts sib npaug. Lub damping nkhaus yuav tsum tau yoog rau tus kheej lub cav tsim, tsis zoo li cov pa roj hmab plaub-lub tog raj kheej. Txhawm rau kom ntseeg tau tias muaj kev vibration damping ntawm peb lub tog raj kheej, siv lub cav tsim nyog, uas txwv, tshwj xeeb, lawv qhov ntev thiab kev txav mus los.
Hydraulic, electro-hydraulic lossis torque fastening?
Txhawm rau nruab peb lub tog raj kheej cav, ob qho tib si hydraulic thiab electro-hydraulic cushions tuaj yeem siv tau, uas muaj lub neej ua haujlwm ntev. Txawm li cas los xij, niaj hnub no lub npe hu ua "brake mount" txuas pads feem ntau hu ua lollipops. Nyob rau hauv cov kev daws teeb meem no, kev co damping yog muab los ntawm ib tug tshwj xeeb connector, nyob rau hauv uas ib tug bushing yog txuas rau lub cav, thiab lwm yam yog bolted rau lub cev. Qhov kom zoo dua ntawm "kev txhawb nqa lub zog" cushions yog qhov kev txwv ruaj khov ntawm lub cav qaij, thiab qhov tsis zoo yog lub neej ua haujlwm luv dua piv rau hydraulic cushions.
Dab tsi tawg?
Mounting lub tes tsho yog mechanically puas thaum ua haujlwm. Qhov tsis ua hauj lwm ntawm ib qho ntawm lawv ua rau lub cav nrov nrov, nrog rau kev co (resonant vibrations) xa mus rau lub cev lub tsheb. Tsav lub tsheb ntev dhau los nrog lub bushing tsis zoo tuaj yeem ua rau muaj kev puas tsuaj rau cov khoom sib kis thiab, vim li ntawd, pom kev vibrations nyob rau hauv lub zog hloov thiab lub kauj. Hauv qhov xwm txheej hnyav, qhov tsis muaj kev vibrations ua rau muaj kev puas tsuaj rau lub kauj, lub cav thiab kev sib kis.
Thaum twg los hloov?
Tsis muaj teeb meem mais tom qab uas lub cav mount airbags yuav tsum tau hloov. Lawv yuav tsum tau hloov nrog cov tshiab thaum pom cov tsos mob ntawm kev puas tsuaj. Nco ntsoov! Yog tias lub ncoo puas raug ntsia axially nrog lwm lub ncoo (piv txwv li, nyob rau hauv nruab nrab ntawm lub cav damping cheeb tsam), ob qho tib si yuav tsum tau hloov.
Nrog variable damping yam ntxwv
Hauv cov kev daws teeb meem niaj hnub no, lub npe hu ua active engine mounts, characterized by variable damping features. Ib txoj hauv kev yog siv lub tshuab electromechanical. Ua tsaug rau nws, nws muaj peev xwm los kho cov theem damping mus rau qhov kev tsav tsheb tam sim no lossis cov neeg siv xaiv tsav tsheb, nrog rau kev tswj xyuas qhov tseeb ntawm qhov tsis sib xws ntawm kev vibration damping yam ntxwv (qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv peb. -lub tog raj kheej hauv kab cav).
Qhov ntxeev ntawm txoj kev no yog lub cev muaj zog mount ncoo nrog ob hom kev ua haujlwm (tsis yog lub tshuab hluav taws xob). Lub thiaj li hu ua mos yam ntxwv ntawm lub cushion yog hnov tsuas yog nyob twj ywm. Nyob rau hauv lem, thaum lub sij hawm lub zog ntawm lub tsheb, qhov loj ntawm lub damping quab yuam yog sib txawv thiab yog raws li nyob rau hauv lub oscillations tam sim no ntawm lub cav.
Qhov zoo tshaj plaws damping xaiv li cas? Kev ua haujlwm ntawm lub cav mount cushion yog tswj los ntawm chav tswj, uas tau txais cov teeb liab los ntawm ob qhov chaw: lub crankshaft ceev sensor thiab acceleration sensors (nyob rau ntawm ob lub cav mounts). Lawv muab cov ntaub ntawv amplitude real-time rau kev tshem tawm kev vibration. Lwm txoj hauv kev los txo cov kev vibrations yog siv lub tshuab hydraulic tshwj xeeb hauv lub cav raug tshem tawm. Lawv yog damped los ntawm ib tug hydraulic nruab nrab (hydraulic kua raws li propylene glycol), uas nyob rau hauv cov ntaub ntawv no yog ib tug sab hauv loj uas sib npaug vibrations. Nws ua haujlwm li cas? Kev nqus ntawm high-amplitude vibration zog los ntawm lub caij ncua kev kawm ntawv tshwm sim los ntawm kev khiav ntawm cov dej ua hauj lwm los ntawm kev ua hauj lwm chamber (los ntawm damping channels) mus rau hauv lub equalizing chamber. Qhov kev khiav no txhawb kev tsis xav tau kev vibrations thiab tseem txo qis qhov ntev thiab sab nraud ntawm lub cav txav. Ntawm qhov tod tes, ntawm qhov qis oscillation amplitude, damping yog tiav los ntawm qhov tshwj xeeb ntab diaphragm foob. Nws ua haujlwm li cas? Lub diaphragm foob vibrates, nyob rau hauv sib piv rau cov vibrations generated los ntawm lub cev muaj zog. Yog li ntawd, qhov tsis xav tau kev vibrations xa mus rau lub tsev yog qhov tsawg, yog li tsis tas yuav siv cov khoom sib npaug ntxiv.
