Sound absorption: Sound absorption ọnụọgụ. Sound absorption ihe: table

Na ebe a nnukwu nkezi nke oghe ebupụta nkejikotara brick, stucco, tile, ihe, iko ma ọ bụ metal, mgbe nile na-anụ a ogologo nkuzi mgbamejije. Na ọnụnọ nke ndị dị otú ahụ ogige ọtụtụ isi mmalite: musical ụbọ, ulo oru mkpọtụ, mkparịta ụka nke ndị - kpọmkwem ụda na-karịrị on ya mgbidi reflections.

Nke a gụnyere na-abawanye na aghara aghara okwu na olu ozo n'ime ụlọ. Na ọtụtụ ọnọdụ, nke a pụrụ isi kwuo bụ ekwesighi. Ka ihe atụ, Ụlọ Nzukọ Alaeze na nke ọdụ ụgbọelu na n'ọdụ ụgbọ okporo ígwè, nakwa dị ka nnukwu Ahịa na Metro-e dị otú ahụ n'ụzọ dị ka iwelata reverberation oge (ma ọ na-akpọ reverberation oge), ebe ọ bụ na ma ọ bụ nanị agaghị ekwe omume ịghọta ọdịnaya nke mgbasa ozi. Ọzọkwa n'ime kenyere ókè ga-reverberation na-eme ihe nkiri, egwu na okwu ihu ọha ụlọ. Mụbara reverberation oge agbagọ uzọ nke okwu na music. N'ụzọ dị iche, obere oge na-agụnye "akọrọ" ụlọ na enweghị omimi nke ụda. Iji belata reverberation oge ma ọ bụ mgbanwe n'ime ime mma iji ụda na-adọrọ ihe na chepụtara.

Iji chebe ogige si mkpọtụ, itinye a dịgasị iche iche nke ihe ndị na-eru nke na-eke ihe na-egbochi ya ụzọ. Ha na-ahọrọ na-ekpebisi ike site na ọrụ. The nsogbu nwere ike ịbịa, soundproofing na ụda olu absorption. Banyere ha na-ekwu okwu.

soundproofing

Ihe mgbaru ọsọ, nke chere soundproofed - a echiche nke mkpọtụ mmiri na ebili mmiri, ka ọ ghara inye ha banye site na mgbidi nke ụlọ. Special soundproofing ihe Ọdịdị erects a mgbochi na ụzọ nke mmiri na ebili mmiri, nke na-egosipụta ha. The ike na-chepụta mkpuchi na-adabere n'ụzọ bụ isi bụ ibu ibu. The ọzọ oke na oké bụ mgbidi, ike ụda banye n'ime ụlọ. Na-amata ikike nke gbaa owuwu maka ụda mkpuchi ndị dị otú ahụ a bara uru dị ka ihe index nke ụda mkpuchi ihe. Nke a oke na-tụrụ na dB na-aghaghị ịbụ na nso 52-60 dB. Noise egbochi ihe ihe na-atụle ga-oké. N'etiti ha, drywall, brick, ihe.

ụda na-adọrọ

Nzube nke ụda absorption - banye mkpọtụ, n'ekweghị ka a gosipụtara site n'elu azụ n'ime ụlọ. Ọ tụrụ site kwa dị ka ụda absorption ihe, na-agbanwe agbanwe na nso si 0 ka 1. Ọ bụrụ na uru nke a ọnụọgụ bụ hà efu, mgbaàmà na-egosi anya mgbidi na ha dum. Mgbe niile mkpọtụ na-etinye obi gị dum kpamkpam, na ọnụọgụ bụ hà n'otu. The ihe na Njirimara n'okpuru echiche ọkwá ndị nwere a ụfọdụ larịị nke ụda absorption. Sound absorption ha ga-adị karịa 0.4.

Silencers bụ nke ndị na-esonụ iche iche:

• layered Ọdịdị;
• olu;
• porous (gụnyere fibrous);
• porous na ọnụnọ nke perforated meziri;
• resonance.

The elu nke ruru, ndị dị elu nke absorption klas.

porous ụda absorbers

mepụta a porous-ụdị absorbers n'ụdị efere nke porous fechaa ihe, na nwetara ozugbo na gbaa-ebupụta ma ọ bụ n'ebe dị anya site na ha. Ndị a ihe na-emepụta ihe na-adabere kaolin, nkume ọkụ, slag, vermiculite iji dị ka a nragide ciment, wayo ma ọ bụ na gypsum. Ndị a ihe nwere zuru ezu ike na a pụrụ iji belata mkpọtụ na-anabata ndị ọbịa, paseji, corridors na stairways nke ụlọ ọha na ulo oru ụlọ.

fibrous ụda absorbers

Na ndị ebe ọdịdị absorbers kwesịrị ịbụ ihe aesthetically etinyere ihe si emep uta eri emeso a n'ụzọ pụrụ iche. The akụrụngwa ji ha n'ichepụta ịnweta ajị, iko ajị, nakwa dị ka osisi na eri. Dị otú ahụ ụda absorbers nwere n'ụdị n'uko na mgbidi ogwe ma ọ bụ ihe nke a curvilinear udi na olu. N'elu porous absorbers etinyere pụrụ iche ink na ike rue elu-igwe, ma ọ bụ na ha na-kpuchie na pụrụ iche ihe ma ọ bụ akwa, na-enweta ihe onwunwe nke breathability.

Na oge a na-ewu na fibrous ụda na-adọrọ ogwe na-kasị na ina. Ha siworo ha arụmọrụ na okwu nke acoustics na izute amụba choro na-enịm na mma.

Nature absorption

Dissipation nke ike absorbers nke now vibrations na eriri ụdị na evolushọn nke okpomọkụ (uda adọrọ onwunwe) nwere ọtụtụ na-akpata. First, n'ihi na ikuku viscosity, nke a na ẹdude ke interfiber interstices ezuru, mmajijiji nke ikuku ahụ na n'ime olu nke absorber esonyere esemokwu. Nke abuo, e nwere ikuku esemokwu nke emep uta eri na-enwe na-a ọkpụrụkpụ ngụkọta n'elu ebe. Ọzọkwa, e nwere esemokwu megide onye ọ bụla ọzọ emep uta eri, na ume agamevu site esemokwu n'etiti a crystal emep uta eri. Ya mere, na-ajụ ma na elu frequencies ya emee karịsịa oru oma ụda absorption. Sound absorption ihe onwunwe bụ n'ime 0.4 ... 1.0. Na ala frequencies ime ka o sikwuoro.

Rịba ama na absorption ọnụọgụ na gbakọọ ka ruru nke elu ma na-adịghị etinye obi gị dum ike nke mgbaàmà-ebute site ná site na ya ka na ngụkọta ike, nke na-eme n'elu. Maka akwụkwọ data on mkpọtụ Mbelata isi ụlọ ihe bụ a table nke ụda absorption ọnụọgụ. Ọ na-e gosiri n'okpuru.

Isiokwu. Sound absorption, ụda absorption ọnụọgụ

ụda na-adọrọ Ọdịdị

Sound-adọrọ ihe ndị fibrous na porous ụdị esiwak-eji mma na now Njirimara nke ogige eme ihe nkiri, cinemas, egwu Ụlọ Nzukọ Alaeze na na ndekọ nka. Ha na-eji na-eme ka obere mkpọtụ na kindergartens, n'ụlọ ọgwụ, ụlọ akwụkwọ.

Dịkwuo mkpọtụ Mbelata na ala frequencies, na ọkpụrụkpụ ma ọ bụ ihe nke ndokwa ikuku ọdịiche n'etiti absorber na a na-atụgharị uche Ọdịdị ga-abakwa ụba.

Ọ bụrụ na fibrous absorbers na-adịghị etinyere na agba na ha na-akọ ihe elu oyi akwa nke ákwà, ha nwere ike ga-eji na-echebe site mmebi site perforated ihe onwunwe.

Na ọdịiche dị n'etiti ihuenyo na ihe nke eriri na-etinye breathable kwaaji zere ikuku na-adaba na fibrous ahụ. Sound-adọrọ Ọdịdị, onwem na a perforated cover, ka o kwe omume iji nweta ezi mma mkpọtụ Mbelata na niile frequencies. Ịgbazi ugboro ihe e ji mara absorption emee site na nhọrọ nke ihe. Nakwa dị ka mgbanwe ya ọkpụrụkpụ, size na udi, na anya n'etiti oghere. Uda adọrọ Ọdịdị, onwem na a perforated metal ihuenyo, ya n'ọtụtụ ebe eji dị ka a vandal-àmà cover. Otu nke taa dị otú ahụ ihe bụ "Eco Shumanet".

The kasị mma ụda na-adọrọ ihe. faiba glaasi

Ihe mere na ndabere nke iko emep uta eri na-enwe elu ike na elasticity. Glass ajị na-enyekwa a elu vibration. Sound absorption vitreous n'ihi ọnụnọ na oghere n'etiti emep uta eri nke a ọnụ ọgụgụ buru ibu nke voids jupụta na ikuku. The uru nke iko ajị na-ọkụ nchekwa, ìhè arọ, elu ekwedo, ọ dịghị mmiri absorption, mmiri vepo permeability, chemical passivity. Glass ajị dị ka ihe mmewere nke now baffles nke na-apụta ma ọ bụ efere, dị ka otu n'ime n'ígwé nke multilayer ụda na-adọrọ owuwu.

ịnweta ajị

Ịnweta ajị bụ a fibrous ihe, nke na-ngwaọrụ maka silicate agbaze nkume, ígwè slag, na mixtures-ya nile.

Pluses ihe: incombustibility, chemical ịnọ nkịtị, na N'ihi, enweghị corrosion na ọla na kọntaktị na ịnweta owu. Ogo nke ụda absorption na-ghọtara ruru ka jupụtara ndokwa nke emep uta eri.

Iji nweta a elu ụda absorption ọnụọgụ (0,7 na 0.9) ofụri ugboro gbalaga eji multilayer Ọdịdị resonant ụdị, nke iso nke ọtụtụ ukem meziri enwe dị iche iche perforations na ikuku gaps nke dị iche iche ọkpụrụkpụ.

Materials "Shumanet Eco"

Na-anọchi anya now oyi akwa zubere maka ojiji na etiti partitions, panelingi Ibé akwụkwọ plasterboard ma ọ rụrụ nke kwụsịtụrụ uko ụlọ. Ha na-mere n'ụdị mbadamba hydrophobized iko akwara, nke na-laminated na iko. The etinyere ihe onwunwe na-inert nragide dabeere na acrylic, na-eme ụda na-adọrọ ogwe nonflammable.

Atụmatụ a nnukwu olu nke ohere

Ọ ga-kwuru na ebe nke nwere a nnukwu ibu, mmetụta nke mbenata reverberation ugboro n'ihi na-ewu nke ndị ọzọ ụda absorption bụghị otú ukwuu. Ndị a ụlọ ọrụ mezie reverberation oge ruru ka n'ụdị uko ụlọ na mgbidi. Ka ihe atụ, na ojiji nke na-abụghị-ewepụghị na ahazi uko ụlọ na pilasters nke dị iche iche shapes ma ọ bụ balconies na mgbidi na-eme ka a nnukwu ụda absorption. Nke a na ụdị ụlọ ndị nkọwa na-eme ka o kwe omume inweta now ubi ọzọ diffuseness, nke nwere mmetụta dị mma n'ebe ndị now ime ụlọ idụhe.

Ọ kwesịkwara kwuru na ngụkọta mkpọtụ Mbelata nke ụlọ nzukọ ahụ na-ụba na ọnụnọ nke decorations, mfe oche, ákwà-nkwuba. Ọ ga-akpọrọ n'ime na akaụntụ mgbe ị na-ahọrọ ọ gụchara ihe, iji bulie ụda absorption. Sound absorption na nke a ga-amụba.