Suab haum: Suab haum coefficients. Suab haum ntawv uas siv: rooj

Nyob rau hauv tej qhov chaw uas ib tug loj kev faib ua feem ntawm qhib chaw comprise cib, stucco, pobzeb, ua vaj tse, lub khob los yog hlau, yeej ib txwm hnov ib tug ntev ncha. Nyob rau hauv lub xub ntiag ntawm xws thaj chaw ob peb qhov chaw: suab paj nruas accompaniment, muaj suab nrov, sib tham ntawm cov neeg - qhov ncaj suab yog superimposed on nws phab ntsa reflections.

Qhov no entails ib qho kev nce nyob rau hauv siab hlob hais lus thiab lub suab nrov theem nyob rau hauv lub chav tsev. Nyob rau hauv feem ntau lub sijhawm, qhov no nyhuv yog undesirable. Piv txwv li, lub halls ntawm tshav dav hlau thiab tsheb ciav hlau qhov chaw nres tsheb, raws li zoo raws li loj supermarkets thiab cov metro no yog tsim nyob rau hauv xws li ib tug txoj kev raws li kom txo tau cov reverberation lub sij hawm (txwv tsis pub nws yog hu ua reverberation lub sij hawm), txij thaum txwv tsis pub nws tsuas yog tsis yooj yim sua kom to taub cov ntsiab lus ntawm tawm. Tsis tas li ntawd nyob rau hauv lub tshuaj txwv yuav tsum reverberation nyob rau hauv ua yeeb yam, kev hais kwv txhiaj thiab qhuab qhia cov chav. Nce reverberation lub sij hawm distorts lub xaav ntawm kev hais lus thiab suab paj nruag. Rau hauv sib piv, lub me me sij hawm yuav "qhuav" chav tsev thiab cov tsis muaj qhov tob ntawm lub suab. Yuav kom txo tau cov reverberation lub sij hawm los yog cov kev hloov nyob rau hauv sab hauv kho kom zoo nkauj siv lub suab absorbing cov ntaub ntawv thiab Siv.

Yuav kom tiv thaiv cov chaw ntawm cov suab nrov, thov ib tug ntau yam ntawm cov ntaub ntawv uas muaj peev xwm sawv ntawm tsim muaj ib qho chaw khuam siab nyob rau hauv nws txoj kev. Lawv xaiv yog txiav txim los ntawm neeg ua hauj lwm. Qhov teeb meem yuav tuaj thiab soundproofing thiab suab haum. Hais txog lawv thiab tham.

soundproofing

Lub hom phiaj, uas ntsib soundproofed - ib tug rog xav txog ntawm cov suab nrov tsis, thiaj li tsis mus muab lawv mus rau txeem los ntawm cov phab ntsa hauv lub chav tsev. Tshwj xeeb soundproofing ntaub ntawv qauv erects ib tug teeb meem nyob rau hauv txoj kev ntawm lub vuag, uas qhia rau lawv. Muaj peev xwm mus tsim rwb thaiv tsev nyob feem ntau los ntawm ceeb thawj. Qhov ntau loj heev thiab tuab yog cov phab ntsa, qhov nyuaj suab txeem mus rau hauv lub chav tsev. Yuav kom ntsuam xyuas lub peev xwm ntawm muab lug rau suab rwb thaiv tsev muaj xws li ib tug nqi raws li ib tug Performance index ntawm lub suab rwb thaiv tsev. Qhov no parameter yog ntsuas nyob rau hauv dB thiab yuav tsum yog nyob rau hauv ntau 52-60 dB. Suab nrov insulating cov ntaub ntawv yog hais tias yuav tuab. Ntawm lawv, phab ntsa ntub dej, cib, ua vaj tse.

suab absorbing

Lub hom phiaj ntawm lub suab haum - nqus nrov nrov, tsis cia nws mus yuav thaws rov los ntawm tus nto rov qab mus rau hauv lub chav tsev. Nws yog ntsuas los ntawm tsis xws li lub suab haum cov ntaub ntawv, hloov nyob rau hauv ntau ntawm 0 1. Yog hais tias tus nqi ntawm no coefficient yog sib npaug zos rau zero, lub teeb liab yog reflected tawm cov phab ntsa nyob rau hauv lawv txoj kev paub. Thaum tag nrho cov suab nrov yog absorbed kiag li, lub coefficient yog sib npaug zos rau kev sib sau. Cov ntaub ntawv nrog lub zog nyob rau hauv kev saib xyuas rank cov muaj ib tug tej theem ntawm lub suab haum. Suab haum lawv yuav tsum tau ntau tshaj li 0.4.

Silencers yog cov nram qab no pawg:

• layered qauv;
• ntim;
• ntxeem tau (xws li fibrous);
• ntxeem tau nrog lub xub ntiag ntawm perforated cov ntxaij vab tshaus;
• resonance.

Lub siab dua lub ratio, ntau dua qhov lub haum hauv chav kawm ntawv.

ntxeem tau suab absorbers

tsim ib tug ntxeem tau-hom absorbers nyob rau hauv daim ntawv ntawm cov phiaj ntxeem tau khaub-ncaws nyias cov ntaub ntawv, thiab nyab xeeb ncaj qha mus rau lub muab chaw los yog ntawm ib tug deb ntawm lawv. Cov ntaub ntawv no yog ua rau lub hauv paus ntawm kaolin, pumice, slag, vermiculite siv raws li ib tug phau ntawv MAAs, txiv qaub los yog gypsum. Cov ntaub ntawv muaj lub zog txaus thiab muaj peev xwm yuav siv tau los txo cov suab nrov nyob rau hauv qhov chaw tos txais, hallways, txoj cai huv nam thiab stairways ntawm pej xeem vaj tse thiab muaj vaj tse.

fibrous suab absorbers

Nyob rau hauv cov cheeb tsam uas cov tsos absorbers yuav tsum xav aesthetically applied ntaub ntawv los ntawm fibers kho nyob rau hauv ib tug tshwj xeeb txoj kev. Cov raw khoom siv rau lawv raug mineral wool, iav ntaub plaub, raws li zoo li ntoo thiab hluavtaws fibers. Tej suab absorbers muaj rau hauv daim ntawv ntawm qab nthab thiab phab ntsa panels los yog cov ntsiab ntawm ib tug curvilinear zoo thiab ntim. Nyob rau saum npoo ntawm qhov ntxeem tau absorbers thov tshwj xeeb number case uas yuav kis tau huab cua, los yog lawv them nrog tshwj xeeb ntaub ntawv los yog ntaub, kuj muaj cov cuab yeej ntawm breathability.

Nyob rau hauv niaj hnub siv cov fibrous suab absorbing panels yog feem ntau nyob rau hauv coob. Lawv tau muaj pov thawj lawv ua hauj lwm zoo nyob rau hauv cov nqe lus ntawm acoustics thiab raws li cov ua xav tau hais tias yog muab tso rau hauv kho kom zoo nkauj.

Xwm haum

Dissipation ntawm lub zog absorbers ntawm acoustic deeg nyob rau hauv lub fiber yam uas evolution ntawm tshav kub kub (suab absorbing cov ntaub ntawv uas) muaj ob peb ua. Ua ntej, vim rau saum huab cua viscosity, uas yog muaj nyob rau hauv lub interfiber interstices txaus, fluctuation ntawm huab cua hais nyob rau hauv lub puab ntim ntawm lub absorber nrog kev sib txhuam. Secondly, muaj yog huab cua tsis sib haum xeeb ntawm fibers muaj kuj yog ib tug ntau yam pauv loj tag nrho deg hauv cheeb tsam. Ntxiv muaj kev sib txhuam tiv thaiv txhua lwm yam fibers, thiab lub zog dissipated los ntawm sib haum xeeb ntawm ib tug siv lead ua fibers. Yog li ntawd, nyob nruab nrab thiab theem siab frequencies nws tshwm sim tshwj xeeb npaum suab haum. Suab haum cov ntaub ntawv uas muaj nyob rau hauv 0.4 ... 1.0. Thaum uas tsis muaj frequencies ua rau nws nyuaj.

Nco ntsoov tias lub haum coefficient yog xam raws li tus piv ntawm cov nto thiab yog tsis absorbed zog ntawm lub teeb liab kis tau los ntawm nws rau tag nrho cov zog, uas ua rau ntawm qhov chaw. Rau siv cov ntaub ntawv rau lub suab nrov yuav txo tau ntawm yooj yim lub tsev ntaub ntawv yog ib lub rooj ntawm lub suab haum coefficients. Nws yog li nram no.

Rooj. Suab haum, suab haum coefficients

suab-absorbing qauv

Suab-absorbing ntaub ntawv yog fibrous thiab ntxeem tau hom yog feem ntau siv los txhim kho lub acoustic thaj chaw ntawm thaj chaw theaters, cinemas, kev hais kwv txhiaj halls thiab cov ntaubntawv povthawj siv studios. Lawv kuj siv tau los ua tsawg suab nrov nyob rau hauv kindergartens, tsev kho mob, cov tsev kawm ntawv.

Yuav kom nce lub suab nrov yuav txo tau thaum uas tsis muaj frequencies, lub thickness los yog ntaub ntawv ntawm lub sij hawm teem cua kis ntawm tus absorber thiab ib tug xav qauv yuav tsum tau nce.

Yog hais tias fibrous absorbers tsis muaj ntaub ntawv rau cov xim muaj hlau thiab lawv tsis muaj ib tug txheej txheej ntawm ntaub, lawv yuav tsum tau siv nrog kev tiv thaiv ntawm kev puas tsuaj los ntawm cov perforated khoom.

Nyob rau hauv cov kis ntawm tus tshuaj ntsuam thiab cov khoom ntawm fiber yog muab tso rau breathable canvas kom tsis txhob huab cua tau mus rau hauv lub fibrous hais. Suab-absorbing qauv, txawm peem rau nrog ib tug perforated cover, ua rau nws tau mus nrhiav tau zoo zoo suab nrov yuav txo tau ntawm tag nrho cov frequencies. Kho cov zaus cov yam ntxwv haum tshwm sim los ntawm cov kev xaiv ntawm cov ntaub ntawv. Raws li zoo raws li ntau nws thickness, loj thiab cov duab, qhov kev ncua deb ntawm lub qhov. Suab absorbing qauv, txawm peem rau nrog ib tug perforated hlau screen, nws yog dav siv raws li ib tug vandal-ntawv pov thawj cover. Ib tug ntawm niaj hnub no xws ntaub ntawv yog "Eco Shumanet".

Qhov zoo tshaj plaws lub suab-absorbing cov ntaub ntawv. fiberglass

Material ua rau lub hauv paus ntawm lub khob fibers muaj siab zog thiab elasticity. Iav ntaub plaub kuj yuav muab ib tug high school cov kev co. Suab haum vitreous vim lub muaj nyob rau hauv tej qhov chaw ntawm lub fibers ntawm ib tug loj tus naj npawb ntawm voids sau nrog huab cua. Qhov zoo ntawm cov iav ntaub plaub yog hluav taws kub kev nyab xeeb, lub teeb yuag, siab elasticity, tsis muaj dej haum, dej vapor permeability, tshuaj passivity. Iav ntaub plaub raws li ib tug keeb ntawm cov acoustic baffles ntawm lub yob los yog daim hlau, raws li ib tug ntawm cov khaubncaws sab nraud povtseg ntawm cov multilayer suab absorbing lug.

mineral wool

Mineral wool yog ib tug fibrous cov ntaub ntawv uas, uas yog raw cov ntaub ntawv rau lub silicate melts pob zeb, steel slag, thiab mixtures thereof.

Pluses khoom: incombustibility, tshuaj ntseeg lawm xwb, thiab thiaj li, hla ntawm xeb rau co nyob rau hauv kev sib cuag nrog cov mineral wool. Qhov zoo tshaj ntawm lub suab haum yog pom tau hais vim lub chaotic arrangement ntawm fibers.

Yog xav tau ib tug siab suab haum coefficient (0.7 rau 0.9) thoob plaws hauv lub zaus band siv multilayer qauv resonant yam, uas muaj xws li ob peb thaum uas tig mus cov ntxaij vab tshaus coj txawv perforations nrog cua ncua ntawm txawv thickness.

Ntaub ntawv "Shumanet Eco"

Sawv cev acoustic txheej npaj rau kev siv nyob rau hauv tus ncej partitions, ntoo thaiv phab ntsa los xij ntawm plasterboard los yog Siv ntawm tshem tawm ceilings. Lawv yog ua los nyob rau hauv daim ntawv ntawm cov phiaj hydrophobized iav fibers, uas yog laminated nrog iav. Cov ntaub ntawv cov ntaub ntawv uas yog inert phau ntawv raws li nyob rau hauv acrylic, ua suab absorbing panels nonflammable.

Nta ib tug loj ntim ntawm qhov chaw

Nws yuav tsum tau muab sau tseg tias nyob rau hauv tej thaj chaw uas muaj lub siab ntim, cov nyhuv ntawm kev txo reverberation lub sij hawm vim rau kev tsim kho ntawm ntxiv suab haum yog tsis yog li ntawd zoo kawg thiab. Cov chaw kho mob tswj reverberation lub sij hawm vim rau hauv daim ntawv ntawm ceilings thiab phab ntsa. Piv txwv li, cov kev siv uas tsis yog-ca thiab sib npaug ceilings thiab Pilasters ntawm ntau yam nrhiav los yog balconies ntawm cov phab ntsa ua rau ib tug loj suab haum. Qhov no daim ntawv ntawm architectural ntsiab lus yuav ua rau nws tau mus nrhiav tau ib tug acoustic teb ntau diffuseness, uas muaj ib tug zoo ntxim rau cov acoustic sab hauv tsev kev nyab xeeb.

Nws yuav tsum tau muab sau tseg tias tag nrho cov suab nrov yuav txo tau ntawm lub cuab yog nce nyob rau hauv lub xub ntiag ntawm decorations, ib qho yooj yim quav, yuav kub hnyiab tau. Nws yuav tsum tau coj mus rau hauv tus account thaum xaiv xov cov ntaub ntawv, nyob rau hauv thiaj li yuav khaws cov suab haum. Suab haum nyob rau hauv cov ntaub ntawv no yuav ua rau kom.