Wataƙila hayan tsohon jirgin da ke tafiya a cikin fim ɗin zai iya haifar da tunanin yaranmu cikin sauƙi, kamar muna ba da labari na baya.
Amma lokacin da irin wannan sauti ba ya wanzu a cikin fina-finai, amma akai-akai yana bayyana a kusa da gidanmu, watakila wannan "ƙwaƙwalwar ƙuruciya" ta juya zuwa matsaloli marasa iyaka a nan take. Wannan sauti mara kyau shine hayaniya.
Hayaniya ba wai kawai ta dagula mafarkin mutane ba, amma mafi mahimmanci, yanayin hayaniya na dogon lokaci yana iya haifar da lalacewar da ba za a iya jurewa ba ga ilimin halittar jiki da ilimin halin ɗan adam, kuma yana ɗaya daga cikin mahimman hanyoyin gurɓata yanayi a yanayin zamani.
Rage amo da murƙushe sauti sun zama buƙatu na gaggawa ga mutane.
Gabaɗaya magana, abubuwan da ke shafar matakin ƙara sun haɗa da ƙarar tushen sauti da nisa tsakanin mitar sauti da tushen sauti.
A cikin yanayin cewa ƙarar, mitar sauti da nisa tsakanin tushen sauti da mutum ba a sauƙaƙe ba, ta hanyar ƙarfafa shingen sauti na zahiri - aikin rufewar sauti na ƙofofi da tagogi, ana toshe watsa sauti gwargwadon yiwuwa, ta haka ne. haifar da dadi da dadi muhalli.
Hayaniya ba ta da daɗi a zahiri ko ta hankali, mara daɗi, mara daɗi, maras so, ko ban haushi, sautukan da ba a so ga waɗanda suka ji ta, suna shafar zance ko tunani, aiki, nazari, da huta da sautin.
Mitar sauraron kunnen ɗan adam don sauti kusan 20Hz ~ 20kHz ne, kuma kewayon tsakanin 2kHz da 5kHz shine wurin da ya fi dacewa a cikin kunnen ɗan adam. Karancin sauti da yawa da yawa na iya haifar da rashin jin daɗi.
Mafi kyawun kewayon ƙarar shine 0-40dB. Sabili da haka, sarrafa yanayin rayuwar mu da aiki a cikin wannan yanki na iya inganta ta'aziyya kai tsaye da tattalin arziki.
Ƙaramar ƙaramar ƙarar ƙararrawa tana nufin amo tare da mitar 20 ~ 500Hz, mitar 500Hz ~ 2kHz mitar matsakaici ce, kuma babban mitar shine 2kHz ~ 20kHz.
A cikin rayuwar yau da kullun, injin kwantar da iska, jiragen kasa, jiragen sama, injinan mota (musamman kusa da tituna da magudanar ruwa), jiragen ruwa, lif, injin wanki, firiji, da dai sauransu galibi su ne ƙaramar ƙaramar ƙararrawa, yayin da kaho da busar mota. , kayan kida, raye-rayen murabba'i, ihun kare, watsa shirye-shiryen makaranta, jawabai, da dai sauransu galibi surutu ne masu yawan gaske.
Ƙarar ƙaramar ƙarar ƙarar ƙarar ƙarar ƙararrawa tana da nisa mai nisa, mai ƙarfi mai ƙarfi, kuma baya canzawa sosai tare da nisa, wanda shine mafi cutarwa ga ilimin halittar ɗan adam.
Babban amo yana da ƙarancin shigar azzakari cikin farji, kuma za a rage shi sosai yayin da nisan yaɗuwar ya karu ko kuma ya gamu da cikas (misali, ga kowane haɓakar mita 10 a nisan yaɗuwar amo mai girma, ƙarar za ta rage ta 6dB).
Ƙarar ita ce mafi mahimmanci don ji. Ana auna ƙarar a cikin decibels (dB), kuma ƙarar yanayi da ke ƙasa da 40dB shine mafi kyawun yanayi.
Kuma ƙarar fiye da 60dB, mutane na iya jin rashin jin daɗi a fili.
Idan ƙarar ya wuce 120dB, yana ɗaukar minti 1 kawai don haifar da kume na ɗan lokaci a cikin kunnen ɗan adam.
Bugu da ƙari, tazarar da ke tsakanin tushen sauti da kuma mutumin kuma kai tsaye yana shafar fahimtar mutum na amo. Ƙara nisa, ƙananan ƙarar.
Koyaya, don ƙaramar ƙarar ƙararrawa, tasirin nesa akan raguwar amo ba a bayyane yake ba.
Lokacin da ba zai yiwu a yi canje-canje da yawa ga mahallin mahallin ba, yana iya zama zaɓi mai hikima don canzawa zuwa kofa da taga mai inganci, kuma ku ba wa kanku gida mai lumana da kyau.
Kyakkyawan saitin kofofi da tagogi na iya rage hayaniyar waje da fiye da 30dB. Ta hanyar daidaitawar haɗin gwiwar ƙwararru, ana iya ƙara rage amo.
Gilashin shine mafi mahimmancin bangaren da ke shafar sautin rufin ƙofofi da tagogi. Don nau'ikan amo daban-daban, daidaita gilashin daban-daban shine zaɓin ƙwararru da tattalin arziki.
Babban amo - gilashin rufewa
Gilashin insulating shine haɗin gilashin guda 2 ko fiye da haka. Gas ɗin da ke tsakiyar rami mara ƙarfi zai iya ɗaukar ƙarfin matsakaici da mitar sauti mai ƙarfi, ta haka zai rage ƙarfin kalaman sauti.Tasirin sautin murfi na gilashin insulating yana da alaƙa da kauri daga gilashin, iskar gas na ramin rami da lamba da kauri na sararin sarari.
A mafi yawan lokuta, gilashin rufewa yana da tasiri mai kyau na toshewa akan matsakaici mai ƙarfi da ƙarar mita. Kuma duk lokacin da kaurin gilashin ya ninka sau biyu, ana iya rage ƙarar da 4.5 ~ 6dB.
Sabili da haka, mafi girman kauri na gilashin, mafi ƙarfin sautin sauti.
Za mu iya inganta tasirin sauti na ƙofofi da tagogi ta hanyar ƙara kauri na gilashin rufewa, cika iskar gas, da ƙara kaurin ramin.
Karancin amo -insulatinggilashin laminated
A ƙarƙashin kauri ɗaya, gilashin da aka lakafta yana da tasiri mai mahimmanci akan toshe matsakaici da ƙananan raƙuman sauti, wanda ya fi gilashin rufewa.
Fim ɗin da ke tsakiyar gilashin da aka lakafta yana daidai da Layer mai damping, kuma ana amfani da mannen PVB don ɗaukar matsakaici da ƙananan raƙuman sauti da murƙushe girgiza gilashin, don cimma tasirin rufewar sauti.
Yana da mahimmanci a lura cewa aikin haɓakar sauti na interlayer zai iya shafar yanayin zafi.
A cikin lokacin sanyi mai sanyi, mai shiga tsakani zai rasa wasu daga cikin elasticity saboda ƙananan zafin jiki kuma ya rage tasirin tasirin sauti. Gilashin da aka lanƙwasa, wanda ya haɗu da fa'idodin gilashin da aka ɗora, ana iya siffanta shi da gilashin da ba a iya juye-juye ba.
Rufe Gine-Tsarin Gyaran Sauti na Mota
Baya ga dogaro da gilashi, ingantaccen sautin sauti kuma yana da alaƙa da tsarin rufewa.
MEDO yana amfani da nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan hati na EPDM irin su haɗin gwiwa mai laushi da wahala, cikakken kumfa, da sauransu, waɗanda ke da kyakkyawan juriya kuma suna iya rage ƙaddamar da sauti yadda yakamata. Tsarin tsarin hatimin tashoshi da yawa na ramin, tare da gilashin, suna cika juna don gina shingen amo.
hanyar budewa
Ko da yake akwai hanyoyi daban-daban na buɗe ƙofofi da tagogin tsarin, bayanan gwaji sun nuna cewa hanyar buɗewa na buɗe akwati ta fi dacewa da zamewa cikin yanayin juriya na iska, rufewa da sautin sauti.
Dangane da cikakkun bukatu, idan kuna son ingantacciyar sautin sauti, an fi son ƙofofi da tagogi.
Bugu da kari, dakarkatar da tagogikuma ana iya ɗaukar tagogin rumfa a matsayin hanyoyin aikace-aikace na musamman na ƙofofi da tagogi, waɗanda ke da fa'idodin tagogi masu fa'ida kuma suna da fa'idodinsu na musamman, kamar karkatar da tagogin zama mafi aminci kuma mafi sauƙi a cikin samun iska.
MEDO, wanda ke ɗaukar ƙwararren masani na tsarin a matsayin alhakin kansa, ya tara kusan shekaru 30 na tarin fasaha, yana dogaro da ginshiƙi mai ƙarfi da cikakken tsarin samfurin matrix, yana fassara yanayin aikace-aikacen da bukatun abokin ciniki cikin harshe ƙira, kuma yana amfani da ƙwararru da tsauri. Halin kimiyya don tsayawa a mafi kyawun masu amfani, fuskanci matsayi don samar da mafita mafi kyau ga kowane aikin tare da tunani mai zurfi da kuma yanke-tsalle.
Lokacin aikawa: Oktoba-25-2022
