Emvelweni, amalulwane asebenzisa i-echolocation ye-ultrasonic ukuze athole inyamazane yawo, futhi ngesikhathi esifanayo, inyamazane ibuye yashintsha izivikelo - amanye amabhu angakwazi ukumunca ngokuphumelelayo amagagasi e-ultrasonic ngokusebenzisa izakhiwo ezinhle emaphikweni awo ukuze agweme ukubonakaliswa komsindo okuveza indawo yawo.Kungokokuqala ukuthi ososayensi bathole izinto ze-acoustic endalweni.Nakuba amaphiko enundu eqondiswe kumagagasi e-ultrasonic (imvamisa yokudlidliza ingaphezu kuka-20,000 Hz), izimiso zabo zokumunca umsindo zihambisana nazo zonke izinhlobo zezinto ezimunca umsindo esizibonayo ezimpilweni zethu, kodwa lakamuva Lungisa ukwakheka okufanayo kumafrikhwensi. ibhendi (20Hz-20000Hz) ngokuhambisana nokuzwa komuntu.Namuhla, ake sikhulume ngezinto zegwebu ezihlobene ne-NVH.
Umsindo usuka ekudlidlizeni kwento, futhi isenzakalo samagagasi esisakazeka endaweni ethile futhi singabonwa yisitho somuntu sokuzwa.I-NVH ibhekisela emsindweni (umsindo), ukudlidliza (ukudlidliza) kanye nobukhali (ubukhali), lapho umsindo nokudlidliza kuyikhona esikuzwa ngokuqondile, kuyilapho ubukhali bomsindo busetshenziswa kakhulu ukuchaza indlela umzimba womuntu obona ngayo ngokuzenzakalelayo ukudlidliza nomsindo. .umuzwa wokungakhululeki.Njengoba lezi zintathu zivela ngesikhathi esisodwa ekudlidlizeni komshini futhi azihlukaniseki, zivame ukufundwa ndawonye.
Njengoba kuboniswe emfanekisweni ongezansi, lapho umsindo ungeniswa ezintweni noma ebusweni bengxenye yesakhiwo se-acoustic, ingxenye yamandla omsindo ibonakala, ingxenye yawo ingena entweni, futhi ingxenye yawo imuncwe yizinto, lokho iwukungqubuzana phakathi komsindo nento ezungezile ngesikhathi sokusakazeka noma umthelela wengxenye.Ukudlidliza, inqubo lapho amandla omsindo aguqulwa abe ukushisa futhi alahleke.Ngokuvamile, noma iyiphi into ingamunca futhi ibonise umsindo, kodwa izinga lokumunca nokuzindla liyahluka kakhulu.
Izinto ze-NVH zihlukaniswe ngokuyinhloko zibe izigaba ezimbili: izinto ezimunca umsindo nezinto ezivikela umsindo.Lapho igagasi lomsindo lingena entweni emunca umsindo, liyobangela ukuba umoya nemicu entweni inyakaze, futhi amandla omsindo aguqulelwe abe amandla okushisa futhi ingxenye yawo idliwe, njengokushaya isipontshi nge isibhakela.
Impahla yokuvala umsindo yinto esetshenziselwa ukuvimba umsindo, njengesibhakela esishaya isihlangu futhi sisivimbe ngokuqondile.Impahla yokuvikela umsindo iminyene futhi ayinazimbobo, futhi kunzima ukuthi amagagasi omsindo angene, futhi amandla amaningi omsindo avela emuva, ukuze kuzuzwe umphumela wokuvala umsindo.
Izinto ezinegwebu ezinesakhiwo esinezimbotshana zinezinzuzo eziyingqayizivele zokumuncwa komsindo.Izinto ezinokwakheka kwe-microporous eziminyene zize zibe nomphumela omuhle wokuvala umsindo.Amagwebu avamile e-NHV acoustic afaka i-polyurethane, i-polyolefin, i-raber resin, nengilazi.Igwebu, igwebu lensimbi, njll., ngenxa yezici ezihlukene zezinto ngokwazo, umphumela wokumuncwa komsindo nokunciphisa umsindo uzohluka.
I-polyurethane foam
I-Polyurethane foam impahla inesakhiwo sayo senethiwekhi esiyingqayizivele, esingabamba inani elikhulu lamandla angenayo egagasi lomsindo ukuze kuzuzwe umphumela omuhle wokumunca umsindo, futhi ngesikhathi esifanayo inomsebenzi wokuphindaphinda okuphezulu nokusebenza okuhle kokubhafa.Kodwa-ke, amandla egwebu elivamile le-polyurethane aphansi, futhi umphumela wokufaka umsindo uphansi, futhi ukusebenza kwawo kokumunca umsindo kuzokwehla ngokuhamba kwesikhathi.Ngaphezu kwalokho, ukushisa kuzokhiqiza igesi enobuthi, engenabungane nemvelo.
I-XPE/IXPE/IXPP polyolefin impahla yegwebu
I-XPE/IXPE/IXPP, i-chemically cross-linked/electronic cross-linked foam igwebu le-polyethylene/i-polypropylene, imunca umsindo wemvelo, i-thermal insulation, i-cushioning nokuvikelwa kwemvelo, kanye nesakhiwo sayo sangaphakathi sebhamuza esihle esizimele silungele ukuvala umsindo nokunciphisa umsindo.Ukusebenza okuhle kakhulu.
igwebu lenjoloba
Irabha enegwebu iyinto efanelekile ye-NVH, futhi izinto ezifana ne-silicone, i-ethylene-propylene-diene rubber (EPDM), irabha ye-nitrile-butadiene (NBR), i-neoprene (CR), kanye nerabha ye-styrene-butadiene (SBR) ingcono kuneyangaphambili. izinto ezimbili., Ukuminyana kuphakeme, futhi ingaphakathi ligcwele ama-voids amancane nezakhiwo ezivuliwe kancane, okulula ukumunca amandla omsindo, okunzima ukungena kuzo, futhi anciphise amagagasi omsindo.
i-melamine resin foam
I-Melamine resin foam (i-melamine foam) iyinto enhle kakhulu emunca umsindo.Inesistimu yesakhiwo segridi enezinhlangothi ezintathu ezinezikhala ezanele.Ukudlidliza kuyadliwa futhi kudonswe, futhi igagasi elibonisiwe lingaqedwa ngempumelelo ngesikhathi esifanayo.Ngesikhathi esifanayo, inezinzuzo eziningi ezisebenzayo futhi ezilinganiselayo kunezinto zendabuko ze-foam mayelana nokunciphisa ilangabi, ukushisa ukushisa, isisindo esilula kanye nesimo sokucubungula.
i-aluminium foam
Engeza izithasiselo ku-aluminiyamu emsulwa encibilikisiwe noma ingxubevange ye-aluminium bese uyithumela ebhokisini elinegwebu, faka igesi ukuze wenze igwebu eliwuketshezi, futhi uqinise igwebu eliwuketshezi ukuze kwakhe into yensimbi.Inekhono elihle lokufaka umsindo, futhi ukusebenza kokumunca umsindo kuthatha isikhathi eside, impilo yesevisi ephumelelayo ingafinyelela eminyakeni engaphezu kwengu-70, futhi ingaphinda isetshenziswe futhi isetshenziswe kabusha ngo-100%.
ingilazi yegwebu
Kuyingilazi yezinto ezingaphili ezingezona ezensimbi ezenziwe ngengilazi ephukile, i-ejenti egwetshwayo, izithasiselo eziguquliwe kanye ne-accelerator enegwebu, njll., ngemva kokuphonswa kahle futhi kuxutshwe ngokufanayo, bese kuncibilika ekushiseni okuphezulu, kufakwe amagwebu futhi kukhishwe.
Empilweni yangempela, ngokuvamile akukho lutho olungakwazi ukumunca ngokuphelele amaza omsindo kumabhendi efrikhwensi ahlukene, futhi akukho okubalulekile okungenza ngokungenasici ezinhlelweni zokusebenza.Ukuze kuzuzwe umphumela ongcono wokumunca umsindo, sivame ukubona inhlanganisela yamagwebu e-acoustic angenhla kanye nawo anezinhlobo zokumuncwa komsindo/izinto zokufakwa komsindo ukuze zakhe izinhlobonhlobo zezinto eziyinhlanganisela eziqiniswe yigwebu, futhi ngesikhathi esifanayo ukuze kuzuzwe umphumela. kokumuncwa komsindo wezinto ezibonakalayo nokumuncwa komsindo wesakhiwo, ukuze kuzuzwe ukusebenza kokumuncwa komsindo kwezinto kumabhendi amafrikhwensi ahlukene wefrikhwensi ephezulu nefrikhwensi ephansi.Isibonelo, inqubo eyinhlanganisela yegwebu le-acoustic kanye nezinqubo ezihlukene ezingezona ezilukiwe zingasebenzisa ngokugcwele isakhiwo esiyingqayizivele esinezinhlangothi ezintathu zamuva ukuze kuncishiswe ngempumelelo ukudlidliza kwamagagasi omsindo, kudale amathuba angapheli okumunca umsindo nokunciphisa umsindo;) ungqimba lwesangweji legwebu impahla eyinhlanganisela, izinhlangothi zombili zesikhumba ziboshwe ngezinto eziqiniswe nge-carbon fibre, ezinokuqina komshini okuphakeme namandla omthelela anamandla, ngaleyo ndlela kuzuzwe ukumuncwa okungcono kokushaqeka kanye nokunciphisa umsindo.
Njengamanje, izinto ze-NVH zegwebu zisetshenziswa kakhulu kwezokuthutha, ubunjiniyela bokwakha, ukunciphisa umsindo wezimboni, ukukhiqizwa kwezimoto kanye neminye imikhakha.
Ezokuthutha
ukwakhiwa kwezinto zokuhamba zasemadolobheni ezwe lakithi sekungene esigabeni sokuthuthuka ngokushesha, futhi ukuphazamiseka komsindo njengezimoto, izitimela, ezokuthutha zasemadolobheni nezitimela ze-maglev kuye kwadonsa ukunaka okubanzi.Ngokuzayo, igwebu le-acoustic nezinto zalo eziyinhlanganisela zinamandla amakhulu okusebenza ekuhlukaniseni umsindo nasekunciphiseni umsindo wemigwaqo emikhulu kanye nokuhamba kwabantu basemadolobheni.
imisebenzi yokwakha
Mayelana nezakhiwo kanye nesakhiwo, ngaphezu kokusebenza okuhle kwe-acoustic, izinto zokwakha zinezidingo eziphakeme kakhulu kwezokuphepha, futhi ukuncipha komlilo kuyinkomba eqinile engeke yeqiwe.Amapulasitiki endabuko egwebu (njenge-polyolefin, i-polyurethane, njll.) ayakwazi ukuvutha ngenxa yokuvutha kwawo.Lapho zivutha, ziyancibilika futhi zikhiqize amaconsi.Amaconsi avuthayo azodala ukubhebhetheka komlilo ngokushesha.Ukuze uyenze ihambisane nemithetho nezindinganiso ezifanele zokunqanda ilangabi, ngokuvamile kudingekile ukwengeza izinqamuleli zomlilo, eziningi zazo ezizobola lapho zivezwe ukushisa emazingeni okushisa aphakeme, futhi zikhiphe intuthu enkulu, amagesi anobuthi namagesi abolayo.kubangele izinhlekelele zesibili kanye nokungcoliswa kwemvelo.Ngakho-ke, emkhakheni wokwakha, izinto zomsindo we-acoustic ezine-flame retardant, intuthu ephansi, ubuthi obuphansi, kanye nokunciphisa umthwalo osebenzayo womlilo uzobhekana naleli thuba elikhulu lokuthuthukiswa kwemakethe, kungakhathaliseki ukuthi izakhiwo zezohwebo ezifana nezindawo zezemidlalo, ama-cinema, amahhotela, amahholo ekhonsathi, njll izakhiwo zokuhlala.
Ukunciphisa Umsindo Wezimboni
Umsindo wezimboni ubhekisela emsindweni okhiqizwe ifektri ngesikhathi sokukhiqiza ngenxa yokudlidliza kwemishini, umthelela wokungqubuzana nokuphazamiseka kokugeleza komoya.Ngenxa yemithombo yomsindo eminingi ehlakazekile yezimboni, izinhlobo zomsindo ziyinkimbinkimbi kakhulu, futhi imithombo yomsindo eqhubekayo yokukhiqiza nayo kunzima ukuyibona, okunzima ukuyilawula.
Ngakho-ke, ukulawulwa komsindo endaweni yezimboni kusebenzisa inhlanganisela yezinyathelo ezinjengokumunca umsindo, ukuvala umsindo, ukunciphisa umsindo, ukunciphisa ukudlidliza, ukunciphisa umsindo, ukucekelwa phansi kwe-resonance yesakhiwo, nokugoqwa komsindo wepayipi, ukuze kubuyiselwe umsindo endaweni ezungezile. izinga elamukelekile kubantu.degree, okuphinde kube indawo engase isetshenziswe yezinto ze-acoustic.
ukukhiqiza izimoto
Imithombo yomsindo wezimoto ingahlukaniswa kakhulu ngomsindo wenjini, umsindo we-resonance body, umsindo wesondo, umsindo we-chassis, umsindo womoya nomsindo we-resonance wangaphakathi.Umsindo oncishisiwe ngaphakathi kwekhabhinethi uzothuthukisa kakhulu ukunethezeka komshayeli nabahlali.Ngaphezu kokuthuthukisa ukuqina kwe-chassis nokuqeda indawo ye-low-frequency resonance mayelana nomklamo, ukuqedwa komsindo kuqedwa ngokuyinhloko ngokuzihlukanisa nokumuncwa.Ngokombono wokonga amandla, izinto ezisetshenziswayo zidingeka ukuthi zibe lula.Ngokombono wokuphepha, izinto zokwakha ziyadingeka ukuze zibe nezindawo zokumelana nomlilo nokushisa.Ukufika kwegwebu le-acoustic kanye nezinto ezihlukahlukene eziyinhlanganisela yemisebenzi eminingi kunikeza amathuba amasha okuthuthukisa ukumelana nomsindo, ukuphepha, ukwethembeka, ukonga amandla nokuvikelwa kwemvelo kwezimoto.
Isikhathi sokuthumela: Aug-17-2022