Muri kamere, udusimba dukoresha ultrasonic echolocation kugirango tubone umuhigo, kandi mugihe kimwe, umuhigo nawo wahinduye uburyo bwo kwirwanaho - inyenzi zimwe zishobora kwinjiza neza imiraba ya ultrasonic ikoresheje inyubako nziza kumababa kugirango birinde ibitekerezo byerekana aho bihagaze.Ni ubwambere abahanga bavumbuye ibikoresho bya acoustic muri kamere.Nubwo amababa yinyenzi agenewe imiraba ya ultrasonic (inshuro yinyeganyeza irenga 20.000 Hz), amahame yabo akurura amajwi arahuza nubwoko bwose bwibikoresho bikurura amajwi tubona mubuzima bwacu, ariko ibya nyuma Hindura igishushanyo gisa ninshuro bande (20Hz-20000Hz) ijyanye no kumva kwabantu.Uyu munsi, reka tuvuge kubikoresho bya NVH bijyanye nifuro.
Ijwi rituruka ku kunyeganyega kw'ikintu, kandi ni ibintu byerekana umuvuduko ukwirakwira binyuze mu buryo kandi bishobora kubonwa n'ingingo zumva abantu.NVH bivuga urusaku (urusaku), kunyeganyega (kunyeganyega) no gukaza umurego (ubukana), muri byo urusaku no kunyeganyega ni byo twumva cyane kuri twe, mu gihe ubukana bw'ijwi bukoreshwa cyane cyane mu gusobanura imyumvire y'umubiri w'umuntu ku bijyanye no kunyeganyega n'urusaku. .kumva utamerewe neza.Kubera ko ibyo bitatu bigaragara icyarimwe muburyo bwo guhindagurika kandi ntibishobora gutandukana, akenshi bigirwa hamwe.
Nkuko bigaragara ku gishushanyo gikurikira, iyo ijwi ryinjijwe mubintu cyangwa hejuru yikintu cyubatswe cyitwa acoustic, igice cyingufu zijwi kigaragarira, igice cyacyo cyinjira mubintu, naho igice cyacyo kikaba cyinjijwe nibikoresho, ko ni, guterana hagati yijwi nuburyo bukikije mugihe cyo gukwirakwiza cyangwa ingaruka zibigize.Kunyeganyega, inzira imbaraga zijwi zihindurwamo ubushyuhe zikabura.Muri rusange, ibintu byose birashobora gukurura no kwerekana amajwi, ariko urwego rwo kwinjiza no gutekereza biratandukanye cyane.
Ibikoresho bya NVH bigabanijwemo ibyiciro bibiri: ibikoresho bikurura amajwi nibikoresho bikoresha amajwi.Iyo umuyaga wijwi winjiye mubintu bikurura amajwi, bizatera umwuka na fibre mubikoresho kunyeganyega, kandi ingufu zijwi zizahinduka ingufu zubushyuhe kandi igice cyacyo kizakoreshwa, kimwe no gukubita sponge hamwe na ingumi.
Ibikoresho byo kubika amajwi nibikoresho bikoreshwa muguhagarika urusaku, nkukuboko gukubita ingabo no kuyihagarika bitaziguye.Ibikoresho byerekana amajwi ni byinshi kandi bidafite imbaraga, kandi biragoye ko amajwi yumvikana yinjira, kandi ingufu nyinshi zijwi zigaragarira inyuma, kugirango tugere ku ngaruka zo gutondeka amajwi.
Ibikoresho byinshi bifatanye bifite imiterere yihariye bifite ibyiza byihariye byo kwinjiza amajwi.Ibikoresho bifite imiterere ya microporome yuzuye ndetse bigira ingaruka nziza yijwi.Ifuro rusange ya NHV acoustic irimo polyurethane, polyolefin, resin resin, nikirahure.Ifuro, ibyuma byinshi, nibindi, bitewe nibintu bitandukanye biranga ibintu ubwabyo, ingaruka zo kwinjiza amajwi no kugabanya urusaku bizaba bitandukanye.
Polyurethane ifuro
Ibikoresho bya polyurethane bifite imiterere yihariye y'urusobekerane, rushobora gukurura imbaraga nyinshi zijwi ryijwi ryinjira kugirango bigere ku ngaruka nziza yo kwinjiza amajwi, kandi icyarimwe bigira imbaraga nyinshi kandi zikora neza.Nyamara, imbaraga za polyurethane zisanzwe ni nkeya, kandi ingaruka zo gukingira amajwi ni mbi, kandi imikorere yo kwinjiza amajwi izagabanuka uko ibihe bigenda bisimburana.Byongeye kandi, gutwika bizabyara gaze uburozi, butangiza ibidukikije.
XPE / IXPE / IXPP ibikoresho bya polyolefin
XPE / IXPE / IXPP, imiti ihuza imiti / ikorana na elegitoroniki ihuza polyethylene / polypropilene ifuro ifuro, ifite amajwi asanzwe, iyimikwa ryumuriro, kuryama hamwe no kurengera ibidukikije, kandi imiterere yimbere yimbere yigenga ni nziza mugukingira amajwi no kugabanya urusaku.Imikorere myiza.
rubber
Rubber ifuro ni ibikoresho byiza bya NVH, kandi ibikoresho nka silicone, etylene-propylene-diene reberi (EPDM), reberi ya nitrile-butadiene (NBR), neoprene (CR), na styrene-butadiene reberi (SBR) nibyiza kuruta ibya mbere. ibikoresho bibiri., Ubucucike buri hejuru, kandi imbere huzuyemo ibyuho bito hamwe nigice cyafunguwe, byoroshye kwinjiza ingufu zijwi, bigoye kwinjira, no guhuza amajwi.
melamine resin ifuro
Melamine resin foam (melamine foam) nibikoresho byiza bikurura amajwi.Ifite ibice bitatu-byimiterere ya grid sisitemu ifite gufungura bihagije.Kunyeganyega birakoreshwa kandi bigatwarwa, kandi umuraba ugaragara urashobora kuvaho neza icyarimwe.Muri icyo gihe, ifite ibyiza byinshi-bikora kandi biringaniye kuruta ibikoresho bya furo gakondo mubijyanye no kutagira umuriro, kubika ubushyuhe, uburemere bworoshye nuburyo bwo gutunganya.
aluminium
Ongeramo inyongeramusaruro zashongeshejwe aluminiyumu cyangwa aluminiyumu hanyuma wohereze mu gasanduku kifuro, shyiramo gaze kugirango ube ifuro ryinshi, hanyuma ushimangire ifuro ryamazi kugirango ube ibikoresho byicyuma.Ifite ubushobozi bwiza bwo kubika amajwi, kandi imikorere yo kwinjiza amajwi irasa nigihe kirekire, ubuzima bwiza bwa serivisi burashobora kugera kumyaka irenga 70, kandi burashobora gukoreshwa no gukoreshwa 100%.
ikirahure
Nibikoresho bidasanzwe byikirahure bikozwe mubirahure bimenetse, ibibyimba byinshi, inyongeramusaruro zahinduwe hamwe na moteri yihuta, nibindi, nyuma yo guhindurwa neza no kuvangwa kimwe, hanyuma bigashonga mubushyuhe bwinshi, bikabya kandi bigashyirwa hamwe.
Mubuzima busanzwe, akenshi ntakintu gishobora gukurura rwose amajwi yumurongo mumirongo itandukanye, kandi nta bikoresho bishobora gukora bitagira inenge mubisabwa.Kugirango tugere ku ngaruka nziza yo kwinjiza amajwi, dukunze kubona guhuza ifuro ya acoustic yavuzwe haruguru hamwe na hamwe hamwe nubwoko bwibikoresho byo kwinjiza amajwi / ibikoresho byo gutondekanya amajwi kugirango bikore ibintu byinshi bifashisha ifumbire mvaruganda, kandi icyarimwe kugirango tugere ku ngaruka y'ijwi ryibikoresho byinjira hamwe nuburyo bwo kwinjiza amajwi, kugirango ugere kumikorere yijwi ryibikoresho byibikoresho mumirongo itandukanye yumurongo mwinshi hamwe na frequency nke.Kurugero, uburyo bwo guhuriza hamwe ifuro ya acoustic hamwe nuburyo butandukanye butaboshywe burashobora gukoresha byimazeyo imiterere yihariye yuburyo butatu bwa nyuma kugirango igabanye neza ihindagurika ryumuraba wamajwi, bigatera amahirwe atagira ingano yo kwinjiza amajwi no kugabanya urusaku;) ifuro ya sandwich igizwe nibintu byinshi, impande zombi zuruhu zifatanije nibikoresho bya karuboni fibre yongerewe imbaraga, ifite imbaraga zo gukanika imbaraga hamwe nimbaraga zikomeye zingaruka, bityo bikagerwaho neza no guhungabana no kugabanya urusaku.
Kugeza ubu, ibikoresho bya NVH bifashishwa cyane mu gutwara abantu, ubwubatsi, kubaka urusaku mu nganda, gukora ibinyabiziga no mu zindi nzego.
Ubwikorezi
Igihugu cyanjye cyubaka ubwikorezi bwo mu mijyi cyageze mu ntera yiterambere ryihuse, kandi imvururu z’urusaku nk’imodoka, gariyamoshi, inzira ya gari ya moshi zo mu mijyi, na gari ya moshi za maglev zashimishije abantu benshi.Mu bihe biri imbere, ifuro ya acoustic hamwe nibikoresho byayo byose bifite ubushobozi bukomeye bwo gukoresha amajwi no kugabanya urusaku rwimihanda nyabagendwa.
imirimo yo kubaka
Kubijyanye nubwubatsi nuburyo, usibye imikorere myiza ya acoustic, ibikoresho bifite ibisabwa cyane cyane kumutekano, kandi kutagira umuriro ni ikimenyetso gikomeye kidashobora kurenga.Plastiki gakondo ya kopi (nka polyolefin, polyurethane, nibindi) irashya kubera kwaka kwabo.Iyo yaka, irashonga ikabyara ibitonyanga.Ibitonyanga byaka bizatera vuba gukwirakwiza umuriro.Kugirango ibashe gukurikiza amategeko n'amabwiriza bijyanye na flame retardant, akenshi biba ngombwa ko hongerwamo flame retardants, inyinshi murizo zikabora iyo zihuye nubushyuhe bwubushyuhe bwinshi, kandi zigatanga umwotsi mwinshi, imyuka yubumara na ruswa.gutera ibiza bya kabiri no guhumanya ibidukikije.Kubwibyo, mubijyanye nubwubatsi, ibikoresho bya acoustic hamwe na retardant flame, umwotsi muke, uburozi buke, hamwe no kugabanya imizigo yumuriro bizahura naya mahirwe akomeye yo guteza imbere isoko, yaba inyubako zubucuruzi nkibibuga by'imikino, sinema, amahoteri, inzu y'ibitaramo, nibindi nyubako zo guturamo.
Kugabanya urusaku mu nganda
Urusaku rw'inganda bivuga urusaku rwakozwe n'uruganda mugihe cyo gukora bitewe no kunyeganyega kwa mashini, ingaruka ziterwa no guhungabana.Bitewe n’amasoko menshi y’urusaku rw’inganda, ubwoko bw urusaku buraruhije, kandi amasoko ahoraho yamajwi yumusaruro nayo biragoye kuyamenya, biragoye kuyacunga.
Kubwibyo rero, kugenzura urusaku mukarere ka nganda bifata ingamba zifatika nko kwinjiza amajwi, kubika amajwi, kugabanya urusaku, kugabanya ibinyeganyega, kugabanya urusaku, gusenya resonance yubatswe, hamwe no gufunga amajwi, kugira ngo urusaku rusubizwe urwego rwemewe kubantu.impamyabumenyi, ari nacyo gishobora gukoreshwa mubikoresho bya acoustic.
gukora imodoka
Inkomoko y’urusaku rw’imodoka irashobora kugabanywa cyane cyane urusaku rwa moteri, urusaku rwumubiri wumubiri, urusaku rw ipine, urusaku rwa chassis, urusaku rwumuyaga n urusaku rwimbere.Urusaku rugabanutse imbere muri kabine ruzamura cyane ihumure ryumushoferi nabari bahari.Usibye kunoza ubukana bwa chassis no gukuraho agace gato ka rezonanse mu bijyanye nigishushanyo mbonera, kurandura urusaku ahanini bivanwaho no kwigunga no kwinjizwa.Duhereye ku kuzigama ingufu, ibikoresho byakoreshejwe birasabwa kuba byoroshye.Duhereye ku mutekano, ibikoresho birasabwa kugira umuriro nubushyuhe.Kuza kw'ifuro ya acoustic hamwe nibikoresho bitandukanye bikora byinshi bitanga uburyo bushya bwo kunoza urusaku, umutekano, kwiringirwa, kuzigama ingufu no kurengera ibidukikije.
Igihe cyo kohereza: Kanama-17-2022