Hauv cov tshuab nqus tsev ua haujlwm, tshwj xeeb tshaj yog cov uas siv cov twj nqus tsev qhuav, lub suab nrov ntawm cov pa tawm yog ib qho teeb meem uas pom ntau thiab feem ntau tsis tau kwv yees. Thaum lub sijhawm ua haujlwm, cov cua nrawm nrawm uas tawm los ntawm qhov chaw tawm yuav tsim cov suab nrov aerodynamic loj heev. Yog tsis tswj lub suab nrov kom zoo, qhov no tuaj yeem cuam tshuam tsis zoo rau ib puag ncig ua haujlwm, cuam tshuam rau cov khoom siv nyob ze, thiab ua rau muaj kev pheej hmoo rau kev noj qab haus huv mus sij hawm ntev rau cov neeg ua haujlwm uas raug kev cuam tshuam los ntawm cov suab nrov ntau dhau. Yog li ntawd, kev xaiv lub twj nqus tsev uas tsim nyog yog ib kauj ruam tseem ceeb hauv kev tsim thiab kev ua kom zoo dua qub.
Cov twj tso kua mis Feem ntau muab faib ua peb hom tseem ceeb raws li lawv cov ntsiab cai txo suab nrov: cov khoom siv tiv thaiv suab nrov, cov khoom siv tiv thaiv suab nrov, thiab cov khoom siv sib xyaw (impedance composite) cov khoom siv tiv thaiv suab nrov. Kev nkag siab txog cov yam ntxwv ntawm txhua hom pab cov neeg siv xaiv tau zoo dua thiab pheej yig dua.
Cov twj tso kua mis nqus tsev uas tiv taus
Cov khoom tiv thaiv suab nrovtxo cov suab nrov feem ntau los ntawm kev nqus suab. Lawv tau tsim los ntawm cov ntaub ntawv nqus suab uas muaj qhov ntxeem tau, xws li paj rwb acoustic lossis cov xov xwm fibrous. Thaum cov nthwv suab hla dhau cov ntaub ntawv no, lub zog acoustic raug nqus thiab hloov mus ua cua sov, ua rau muaj kev tso suab nrov tsawg dua.
Hom silencer no zoo heev rau kev ua kom lub suab qis duasuab nrov nruab nrab thiab siab, uas feem ntau tsim los ntawm kev ua pa tsis zoo ntawm qhov tso pa tawm. Cov twj tso suab tsis kam muaj cov qauv yooj yim, tus nqi qis, thiab tsim qauv me me, ua rau lawv haum rau cov ntawv thov nrog qhov chaw teeb tsa tsawg.
Txawm li cas los xij, lawv cov txiaj ntsig tiv thaiv suab nrov qis qis tseem tsawg, thiab cov khoom siv nqus suab sab hauv yuav raug kuab lom los ntawm cov roj av, hmoov av, lossis dej noo dhau sijhawm. Yog li ntawd, kev tshuaj xyuas tsis tu ncua thiab hloov cov khoom siv nqus dej yog qhov tsim nyog kom tswj tau kev ua haujlwm ruaj khov.
Cov twj tso kua mis nqus tsev uas muaj zog
Cov tshuaj tiv thaiv kab mobua haujlwm ntawm lub hauv paus ntsiab lus sib txawv. Es tsis txhob nqus suab, lawv txo cov suab nrov los ntawm kev hloov pauv lub suab impedance ntawm txoj kev tso pa tawm. Qhov no yog ua tiav los ntawm cov qauv tsim xws li cov chav nthuav dav, cov qhov resonance, lossis cov kab ke baffle, uas ua rau cov suab nthwv dej cuam tshuam thiab cuam tshuam nrog ib leeg, ua rau muaj kev tshem tawm ib nrab.
Cov tshuaj silencers uas ua rau muaj kev cuam tshuam zoo tshaj plaws rau kev tswj hwmsuab nrov tsawg zaus, uas feem ntau nyuaj rau tswj siv cov khoom siv nqus dej ib leeg xwb. Vim tias lawv tsis vam khom cov xov xwm porous, lawv feem ntau tiv taus cov pa roj thiab cov khoom me me, ua rau lawv haum rau cov chaw ua haujlwm hnyav thiab cov ntawv thov ua haujlwm tas mus li.
Qhov kev txwv tseem ceeb ntawm cov khoom siv suab nrov reactive silencers yog lawv qhov loj me me thiab kev ua haujlwm attenuation tsis zoo hauv qhov nruab nrab mus rau qhov siab. Yog li ntawd, lawv feem ntau siv qhov twg suab nrov qis yog qhov teeb meem tseem ceeb lossis ua ke nrog lwm txoj hauv kev ntsiag to.
Cov Khoom Siv Ua Ke thiab Cov Lus Qhia Xaiv
Cov khoom siv ua keMuab ob qho tib si resistive thiab reactive elements ua ke rau hauv ib qho qauv, uas ua rau lawv txo tau suab nrov thoob plaws ntau zaus. Los ntawm kev sib txuas ua ke ntawm kev nqus suab thiab kev cuam tshuam nthwv dej, cov silencers no muab kev ua tau zoo sib npaug rau cov suab nrov sib txawv uas feem ntau pom muaj nyob rau hauv cov tshuab nqus tsev lag luam.
Thaum xaiv lub twj tso kua suab nrov, cov neeg siv yuav tsum xav txog ob peb yam tseem ceeb: qhov zaus nrov tshaj plaws, qhov chaw teeb tsa, cov xwm txheej ua haujlwm, thiab cov kev cai txij nkawm. Rau cov ntawv thov uas muaj suab nrov ntau zaus, lub tshuab ua suab nrov tiv taus yuav txaus. Rau cov suab nrov tsawg zaus, lub tshuab ua suab nrov tiv taus yog qhov tsim nyog dua. Hauv cov chaw uas muaj kev cai suab nrov nruj lossis suab nrov sib xyaw, lub tshuab ua suab nrov sib xyaw feem ntau yog qhov kev daws teeb meem zoo tshaj plaws.
Peb cov twj tso kua mis nqus tsev yog tsim los kom ua tiav cov qib txo suab nrov ntawm kwv yees li30–50 dB, thaum tswj hwm cov qauv yooj yim uas tso cai rau kev saib xyuas yooj yim, xws li kev hloov pauv cov ntaub ntawv nqus suab tsis tu ncua. Kev xaiv cov khoom siv ntsiag to kom zoo tsis yog tsuas yog txhim kho kev nyab xeeb thiab kev nplij siab hauv chaw ua haujlwm xwb tab sis kuj txhim kho kev ntseeg siab tag nrho ntawm lub kaw lus thiab kev ua haujlwm zoo.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-29-2025
