N'okike, ụsụ na-eji ultrasonic echolocation chọta anụ oriri ha, ma n'otu oge ahụ, anụ ọhịa emepụtawokwa ihe nchebe - ụfọdụ nla nwere ike ịmịnye ebili mmiri ultrasonic nke ọma site na nhazi dị mma na nku ha iji zere ntụgharị ụda na-egosi ọnọdụ ha.Nke a bụ nke mbụ ndị ọkà mmụta sayensị achọpụtala ihe ndị na-eme mkpọtụ na okike.Ọ bụ ezie na nku nla na-eche ihu na ebili mmiri ultrasonic (ugboro vibration karịrị 20,000 Hz), ụkpụrụ ha na-eme ka ụda na-adaba adaba n'ụdị ihe ọ bụla na-adọrọ ụda anyị na-ahụ na ndụ anyị, mana nke ikpeazụ Gbanwee nhazi ahụ na ugboro ole. band (20Hz-20000Hz) kwekọrọ na ịnụ ihe mmadụ.Taa, ka anyị kwuo maka ihe ụfụfụ metụtara NVH.
Ụda na-esite na ịma jijiji nke ihe, ma bụrụ ihe na-efegharị efegharị nke na-agbasa site na igwe igwe ma akụkụ ahụ mmadụ nwere ike ịhụ ya.NVH na-ezo aka na mkpọtụ (mkpọtụ), ịma jijiji (vibration) na ike (ike), nke mkpọtụ na ịma jijiji bụ nke anyị na-enwekarị mmetụta ozugbo, ebe ike nke ụda na-abụkarị iji kọwaa echiche nke anụ ahụ mmadụ nwere maka ịma jijiji na mkpọtụ. .mmetụta nke ahụ erughị ala.Ebe ọ bụ na atọ ndị a na-apụta n'otu oge na vibration igwe na enweghị ikewapụ, a na-amụkarị ha ọnụ.
Dị ka e gosiri na ọnụ ọgụgụ dị n'okpuru ebe a, mgbe a na-etinye ụda n'ime ihe ma ọ bụ n'elu akụkụ nke ihe nhazi ụda, akụkụ nke ike ụda na-egosipụta, akụkụ ya na-abanye n'ime ihe ahụ, na akụkụ ya na-etinye ya n'ime ihe ahụ, nke ahụ. bụ, esemokwu n'etiti ụda na gburugburu gburugburu n'oge mgbasa ma ọ bụ mmetụta nke akụrụngwa akụrụngwa.Vibration, usoro nke ụda ike na-agbanwe n'ime okpomọkụ na efu.N'ikwu okwu n'ozuzu, ihe ọ bụla nwere ike ịmịnye ma gosipụta ụda, mana ogo nke nnabata na ntụgharị uche dịgasị iche iche.
A na-ekekarị ihe NVH ụzọ abụọ: ihe na-anabata ụda na ihe mkpuchi ụda.Mgbe ụda ụda na-abanye n'ihe na-amịpụta ụda, ọ ga-eme ka ikuku na eriri dị n'ime ihe ahụ maa jijiji, ike ụda ahụ ga-agbanwekwa ka ọ bụrụ ume ọkụ na akụkụ ya ga-erepịa ya, dị ka ịkụ sponge na ogbo. ịkụ ọkpọ.
Ihe mkpuchi ụda bụ ihe eji egbochi mkpọtụ, dị ka aka na-akụ ọta na igbochi ya ozugbo.Ihe mkpuchi mkpuchi ụda dị oke na nke na-adịghị mma, ọ na-esikwa ike maka ụda ebili mmiri ịbanye, na ọtụtụ n'ime ike ụda na-egosipụta azụ, iji nweta mmetụta nke mkpuchi ụda.
Ihe ndị nwere ụfụfụ nwere usoro porous nwere uru pụrụ iche na ntinye ụda.Ihe ndị nwere nnukwu microporous Ọdịdị ọbụna nwere mmetụta mkpuchi ụda dị mma.Ụfụfụ ụda olu NHV a na-ahụkarị gụnyere polyurethane, polyolefin, resin roba, na iko.Ụfụfụ, ụfụfụ ígwè, wdg, n'ihi àgwà dị iche iche nke ihe ahụ n'onwe ya, mmetụta nke ntinye ụda na mbelata mkpọtụ ga-adị iche.
Polyurethane ụfụfụ
Ihe eji eme ụfụfụ polyurethane nwere nhazi netwọk pụrụ iche, nke nwere ike ịmịnye nnukwu ike ụda ụda na-abata iji nweta mmetụta dị mma nke ịmịnye ụda, ma n'otu oge ahụ nwere nnukwu nlọghachi na ọrụ nchekwa dị mma.Otú ọ dị, ike nke ụfụfụ polyurethane nkịtị dị ala, na mmetụta mkpuchi ụda adịghị mma, ọrụ ntinye ụda ya ga-ebelata ka oge na-aga.Tụkwasị na nke ahụ, ọkụ ga-emepụta gas na-egbu egbu, nke na-adịghị mma na gburugburu ebe obibi.
XPE/IXPE/IXPP polyolefin foam ihe
XPE/IXPE/IXPP, kemịkalụ cross-linked/electronically cross-linked polyethylene/polypropylene foam material, nwere eke ụda absorption, thermal mkpuchi, cushioning na gburugburu ebe obibi nchebe, na n'ime ya mma nke onwe afụ Ọdịdị dị mma maka ụda mkpuchi na mbelata mkpọtụ.Ọmarịcha arụmọrụ.
ụfụfụ roba
Rọba foamed bụ ezigbo ihe NVH, na ihe ndị dị ka silicone, ethylene-propylene-diene roba (EPDM), nitrile-butadiene roba (NBR), neoprene (CR), na styrene-butadiene roba (SBR) dị mma karịa nke gara aga. ihe abụọ., Njupụta dị elu dị elu, na ime ụlọ jupụtara na obere oghere na akụkụ ndị mepere emepe, nke dị mfe ịnweta ike ụda, na-esi ike ịbanye, na-ebelata ụda ụda.
melamine resin ụfụfụ
Melamine resin foam (melamine foam) bụ ihe magburu onwe ya na-adọta ụda.Ọ nwere usoro nhazi akụkụ atọ nwere oghere zuru oke.A na-eripịa ma na-etinye uche ya, na ebili mmiri na-egosipụta n'ụzọ dị irè n'otu oge ahụ.N'otu oge ahụ, ọ nwere ọtụtụ uru na-arụ ọrụ na nha anya karịa ihe eji eme ụfụfụ ọdịnala n'ihe gbasara ọkụ ọkụ, mkpuchi ọkụ, ịdị arọ dị arọ na nhazi nhazi.
ụfụfụ aluminum
Tinye ihe mgbakwunye na aluminom ma ọ bụ aluminom dị ọcha gbazere ma ziga ya na igbe ụfụfụ, gbanye gas ka ọ bụrụ ụfụfụ mmiri mmiri, ma mee ka ụfụfụ mmiri sie ike ka ọ bụrụ ihe ígwè.Ọ nwere ikike mkpuchi ụda dị mma, yana arụmọrụ nnabata ụda na-adịte aka, ndụ ọrụ dị irè nwere ike iru ihe karịrị afọ 70, enwere ike ịmegharị ya ma jiri ya mee ihe 100%.
iko ụfụfụ
Ọ bụ iko inorganic na-abụghị ọla nke iko gbajiri agbaji, onye na-afụ ụfụfụ, ihe mgbakwunye gbanwetụrụ na onye na-agbapụta ụfụfụ, wdg, mgbe a kpochara ya nke ọma ma gwakọta ya n'otu, wee gbazee na nnukwu okpomọkụ, gbazee ụfụfụ na annealed.
N'ime ndụ n'ezie, ọ dịghị mgbe ọ bụla ihe nwere ike ịmịkọrọ ebili mmiri na ụda ụda dị iche iche, ọ dịghịkwa ihe nwere ike ịrụ ọrụ na-enweghị ntụpọ na ngwa.Iji nweta mmetụta mmịpụta ụda ka mma, anyị na-ahụkarị nchikota nke ụfụfụ ụda olu dị n'elu na ha na ụdị ihe mkpuchi ụda / ụda ihe na-emepụta ihe dị iche iche nke ụfụfụ na-emesi ike, na n'otu oge ahụ iji nweta mmetụta. nke ụda ụda ihe na ntinye ụda nhazi, iji nweta arụmọrụ ntinye ụda nke ihe dị iche iche ugboro ugboro nke ugboro dị elu na obere oge.Dịka ọmụmaatụ, usoro mgbagwoju anya nke ụfụfụ ụda na usoro dị iche iche na-adịghị kpara akpa nwere ike ime ka usoro ihe dị iche iche dị iche iche dị iche iche dị iche iche na-eme ihe n'ụzọ zuru ezu na-ebelata mkpọtụ nke ebili mmiri nke ụda olu, na-emepụta ohere na-enweghị njedebe maka ụda ụda na mbelata mkpọtụ;) ụfụfụ Sanwichi oyi akwa ihe mejupụtara, akụkụ abụọ nke akpụkpọ ahụ na-ejikọta ya na carbon fiber mesikwuru ihe onwunwe, nke nwere elu igwe rigidity na ike mmetụta ike, si otú ọbọ mma ujo absorption na mbelata mkpọtụ.
Ka ọ dị ugbu a, a na-eji ihe ụfụfụ NVH eme ihe n'ọtụtụ ebe n'ụgbọ njem, injinia ihe owuwu, mbelata mkpọtụ ụlọ ọrụ, nrụpụta ụgbọ ala na mpaghara ndị ọzọ.
Ụgbọ njem
Mwube njem njem n'obodo ukwu nke obodo m abanyela n'ọkwa nke mmepe ngwa ngwa, na ọgba aghara mkpọtụ dịka ụgbọ ala, ụgbọ oloko, ụgbọ okporo ígwè obodo, na ụgbọ oloko maglev adọtala ndị mmadụ anya.N'ọdịnihu, ụfụfụ ụda na ihe ndị mejupụtara ya nwere nnukwu ngwa ngwa na mkpuchi ụda na mbelata mkpọtụ okporo ụzọ na okporo ụzọ obodo.
ọrụ owuwu
N'ihe gbasara ụkpụrụ ụlọ na nhazi, na mgbakwunye na arụmọrụ dị mma, ihe nwere nnukwu ihe a chọrọ na nchekwa, na nkwụsị ọkụ bụ ihe ngosi siri ike nke enweghị ike ịfefe ya.Plastic ụfụfụ ọdịnala (dị ka polyolefin, polyurethane, wdg) na-ere ọkụ n'ihi ọkụ nke onwe ha.Mgbe ha na-ere ọkụ, ha na-agbaze ma na-emepụta ụmụ irighiri mmiri.Mmụba na-ere ọkụ ga-eme ngwa ngwa gbasaa mgbasa ọkụ.Iji mee ka ọ na-agbaso ụkpụrụ na ụkpụrụ ndị na-egbochi ọkụ ọkụ, ọ na-adịkarị mkpa ịgbakwunye ọkụ ọkụ, ọtụtụ n'ime ha ga-agbaze mgbe a na-ekpughere ya na okpomọkụ dị elu, ma na-ebunye nnukwu anwụrụ ọkụ, na-egbu egbu na gas na-emerụ emerụ.na-ebute ọdachi nke abụọ na mmetọ gburugburu ebe obibi.Ya mere, n'ọhịa nke ihe owuwu, acoustic ihe na ire retardant, obere anwụrụ ọkụ, obere toxicity, na irè ọkụ ibu mbenata ga-eche ihu a nnukwu ahịa mmepe ohere, ma ọ bụ azụmahịa ụlọ dị ka egwuregwu, sinima, hotels, concert ụlọ nzukọ. wdg ụlọ obibi.
Mbelata mkpọtụ mkpọtụ ụlọ ọrụ
Mkpọtụ ụlọ ọrụ na-ezo aka na mkpọtụ nke ụlọ ọrụ mmepụta ihe na-emepụta n'oge usoro mmepụta n'ihi ụda igwe, mmetụta esemokwu na ọgba aghara ikuku.N'ihi ọtụtụ ụda ụda ụlọ ọrụ na-agbasasị agbasasị, ụdị mkpọtụ dị mgbagwoju anya, na ụda ụda na-aga n'ihu nke mmepụta na-esikwa ike ịchọpụta, nke siri ike ijikwa.
Ya mere, njikwa mkpọtụ na mpaghara ụlọ ọrụ mmepụta ihe na-eme ka ngwakọta nke usoro dị ka ntinye ụda, mkpuchi ụda, mbelata mkpọtụ, mbelata mkpọtụ, mbelata mkpọtụ, mbibi nke resonance nhazi, na mkpuchi ụda nke pipeline, iji weghachi mkpọtụ na ụda olu. ọkwa dị mma maka ndị mmadụ.ogo, nke bụkwa mpaghara ngwa ngwa nke ihe egwu.
imepụta ụgbọ ala
Enwere ike kewaa isi mmalite mkpọtụ ụgbọ ala n'ime mkpọtụ injin, mkpọtụ resonance anụ ahụ, mkpọtụ taya, mkpọtụ chassis, mkpọtụ ikuku na mkpọtụ n'ime ime.Mbelata mkpọtụ dị n'ime ụlọ ga-eme ka nkasi obi nke ọkwọ ụgbọ ala na ndị nọ n'ime ya dịkwuo mma.Na mgbakwunye na imeziwanye ihe siri ike nke chassis na ikpochapụ mpaghara resonance dị ala n'ihe gbasara imewe, a na-ekpochapụ mkpochapụ nke mkpọtụ site n'ichepụta na absorption.Site n'echiche nke ịzọpụta ike, a na-achọ ka ihe eji eme ihe dị arọ.Site na echiche nchekwa, a na-achọ ihe iji nweta ọkụ na ọkụ ọkụ.Ọbịbịa nke ụfụfụ ụda na ihe dị iche iche na-arụ ọrụ multi-functional composite na-enye ohere ọhụrụ maka imeziwanye mkpọtụ mkpọtụ, nchekwa, ntụkwasị obi, nchekwa ike na nchebe gburugburu ebe obibi nke ụgbọ ala.
Oge nzipu: Ọgọst-17-2022