Hluav taws xob lub tsheb cua txias compressor (tom qab no hu ua hluav taws xob compressor) ua ib qho tseem ceeb ua haujlwm ntawm lub zog tshiab, daim ntawv thov kev cia siab yog dav. Nws tuaj yeem ua kom muaj kev ntseeg siab ntawm cov roj teeb hluav taws xob thiab tsim kom muaj kev nyab xeeb zoo rau cov neeg caij tsheb, tab sis nws kuj ua rau muaj kev tsis txaus siab ntawm kev co thiab suab nrov. Vim tias tsis muaj lub suab nrov ntawm lub cav, hluav taws xob compressorsuab nrov tau dhau los ua ib qho ntawm cov suab nrov nrov ntawm cov tsheb hluav taws xob, thiab nws lub suab nrov ntawm lub cev muaj zog ntau dua, ua rau cov teeb meem suab nrov dua. Lub suab zoo yog qhov ntsuas tseem ceeb rau tib neeg los ntsuas thiab yuav tsheb. Yog li ntawd, nws yog ib qho tseem ceeb heev los kawm cov suab nrov thiab cov yam ntxwv zoo ntawm lub tshuab hluav taws xob los ntawm kev tshawb xyuas theoretical thiab kev sim txhais tau tias.
Noise hom thiab tiam mechanism
Lub suab nrov ntawm lub tshuab hluav taws xob ua haujlwm feem ntau suav nrog cov suab nrov nrov, pneumatic suab nrov thiab suab nrov electromagnetic. Lub suab nrov mechanical feem ntau suav nrog kev sib txhuam suab nrov, cuam tshuam cov suab nrov thiab cov suab nrov nrov. Lub suab nrov aerodynamic feem ntau suav nrog lub suab nrov nrov nrov, tso pa tawm suab nrov, lub suab nrov ntawm lub suab nrov thiab nqus lub suab. Lub mechanism ntawm lub suab nrov yog raws li nram no:
(1) kev sib txhuam suab nrov. Ob yam khoom sib cuag rau kev sib txheeb ze, kev sib txhuam quab yuam yog siv rau hauv qhov chaw sib cuag, txhawb nqa cov khoom vibration thiab emit suab nrov. Qhov kev sib txheeb ntawm qhov kev sib tw ntawm qhov kev sib tw thiab qhov zoo li qub vortex disk ua rau lub suab nrov nrov.
(2) cuam tshuam lub suab nrov. Kev cuam tshuam lub suab nrov yog lub suab nrov uas tsim los ntawm kev cuam tshuam ntawm cov khoom nrog cov khoom, uas yog tus cwj pwm los ntawm cov txheej txheem luv luv, tab sis lub suab nrov. Lub suab nrov tsim los ntawm lub phaj valve tawm tsam lub phaj valve thaum lub compressor tawm tawm yog cov suab nrov.
(3) Lub suab nrov. Lub suab nrov tsim los ntawm excitation vibration thiab vibration kis tau tus mob ntawm cov khoom yog hu ua structural suab nrov. Lub eccentric rotation ntawmcompressorrotor thiab rotor disk yuav tsim kom muaj kev zoo siab rau lub plhaub, thiab lub suab nrov nrov los ntawm kev co ntawm lub plhaub yog lub suab nrov.
(4) tso suab nrov. Cov suab nrov nrov tuaj yeem muab faib ua lub suab nrov nrov thiab lub suab nrov ntawm lub suab nrov. Lub suab nrov uas ua los ntawm qhov kub thiab txias siab gas ejecting los ntawm lub qhov cua ntawm kev kub ceev belongs rau lub suab nrov tawm dav hlau. Lub suab nrov tshwm sim los ntawm kev sib cuam tshuam cov pa roj siab fluctuation belongs rau cov pa roj pa tawm suab nrov.
(5) inspiratory suab nrov. Suction suab nrov tuaj yeem muab faib ua suab nrov suction turbulence thiab suction pulsation suab nrov. Cov huab cua kem resonance suab nrov generated los ntawm unsteady airflow ntws nyob rau hauv lub intake channel belongs rau lub suction turbulence suab nrov. Lub siab hloov suab nrov uas ua los ntawm lub sij hawm nqus ntawm lub compressor belongs rau lub suab nrov suction pulsation.
(6) Electromagnetic suab nrov. Kev sib cuam tshuam ntawm magnetic teb nyob rau hauv qhov sib txawv ntawm huab cua tsim radial quab yuam uas hloov nrog lub sij hawm thiab qhov chaw, ua nyob rau hauv lub ruaj thiab rotor core, ua rau lub sij hawm deformation ntawm cov tub ntxhais, thiab yog li generates electromagnetic suab nrov los ntawm kev co thiab suab. Lub suab nrov ua haujlwm ntawm compressor tsav lub cev muaj zog yog cov suab nrov electromagnetic.
NVH xeem cov cai thiab cov ntsiab lus xeem
Lub compressor yog ntsia rau ntawm ib tug nruj bracket, thiab lub suab nrov xeem ib puag ncig yuav tsum tau ib tug semi-anechoic chamber, thiab cov suab nrov tom qab yog qis dua 20 dB (A). Lub microphones tau teem rau pem hauv ntej (sab suction), rear (sab sab), sab saum toj, thiab sab laug ntawm compressor. Qhov kev ncua deb ntawm plaub qhov chaw yog 1 m ntawm qhov chaw geometric ntawm lubcompressornto, raws li qhia hauv daim duab hauv qab no.
Xaus
(1) Lub suab nrov ntawm lub tshuab hluav taws xob ua haujlwm yog tsim los ntawm cov tshuab suab nrov, suab nrov pneumatic thiab lub suab nrov electromagnetic, thiab lub suab nrov electromagnetic muaj qhov cuam tshuam zoo tshaj plaws rau lub suab zoo, thiab optimizing lub suab nrov electromagnetic yog ib txoj hauv kev zoo los txhim kho lub suab. qhov zoo ntawm cov hluav taws xob compressor.
(2) Muaj qhov sib txawv pom tseeb ntawm lub hom phiaj qhov tseem ceeb ntawm lub suab zoo nyob rau hauv cov ntsiab lus sib txawv thiab cov xwm txheej ceev sib txawv, thiab lub suab zoo nyob rau hauv kev coj rov qab yog qhov zoo tshaj plaws. Txo lub compressor ua hauj lwm ceev nyob rau hauv lub premise ntawm satisfying lub tub yees kev ua tau zoo thiab nyiam xaiv lub compressor orientation ntawm cov neeg caij tsheb compartment thaum nqa tawm lub tsheb layout yog conducive rau kev txhim kho tib neeg txoj kev tsav tsheb.
(3) Kev faib tawm zaus ntawm cov yam ntxwv nrov nrov ntawm lub tshuab hluav taws xob thiab nws cov nqi siab tshaj plaws tsuas yog cuam tshuam nrog txoj hauj lwm teb, thiab tsis muaj dab tsi cuam tshuam nrog kev ceev. Lub suab nrov peaks ntawm txhua lub suab nrov nrov yog feem ntau faib rau hauv nruab nrab thiab siab zaus band, thiab tsis muaj lub ntsej muag lub suab nrov ntawm lub cav, uas yooj yim rau kev lees paub thiab yws los ntawm cov neeg siv khoom. Raws li cov yam ntxwv ntawm acoustic rwb thaiv tsev cov ntaub ntawv, txais yuav acoustic rwb thaiv tsev ntsuas ntawm nws txoj kev kis tau tus mob (xws li siv acoustic rwb thaiv tsev cover los qhwv lub compressor) yuav ua tau zoo txo qhov cuam tshuam ntawm hluav taws xob compressor suab nrov ntawm lub tsheb.
Post lub sij hawm: Sep-28-2023