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Gwajin NVH da bincike na kwampreshin kwandishan abin hawa na lantarki

Kwamfutar kwandishan abin hawa na lantarki (nan gaba ana kiranta da compressor na lantarki) a matsayin muhimmin bangaren aiki na sabbin motocin makamashi, yanayin aikace-aikacen yana da fadi. Yana iya tabbatar da amincin baturin wutar lantarki da gina yanayi mai kyau don ɗakin fasinja, amma kuma yana haifar da ƙarar girgiza da amo. Domin babu abin rufe fuska da hayaniya, lantarki kwampresoamo ya zama daya daga cikin manyan hanyoyin amo na motocin lantarki, kuma karar motarsa ​​tana da mafi yawan abubuwan da ake amfani da su, wanda hakan ya sa matsalar ingancin sauti ta yi fice. Ingancin sauti shine mahimman bayanai don mutane don kimantawa da siyan motoci. Sabili da haka, yana da mahimmanci don nazarin nau'ikan amo da halayen ingancin sauti na compressor na lantarki ta hanyar nazarin ka'idoji da hanyoyin gwaji.

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Nau'in amo da tsarin tsara

Hayaniyar damfara na lantarki ya ƙunshi hayaniyar injina, hayaniyar pneumatic da amo na lantarki. Hayaniyar injina ya ƙunshi hayaniyar gogayya, hayaniyar tasiri da hayaniyar tsari. Aerodynamic amo yafi hada da shaye jet amo, shaye pulsation, tsotsa turbulence amo da tsotsa pulsation. Tsarin samar da surutu shine kamar haka:

(1) hayaniya mai tada hankali. Abubuwan tuntuɓar abubuwa guda biyu don motsi na dangi, ana amfani da ƙarfin juzu'i a cikin fuskar lamba, tada jijjiga abu kuma suna fitar da hayaniya. Motsin dangi tsakanin motsin matsawa da faifan faifan vortex na tsaye yana haifar da hayaniya.

(2) Tasirin surutu. Tasirin amo shine amo da ke haifar da tasirin abubuwa tare da abubuwa, wanda ke da ɗan gajeren tsari na radiation, amma babban matakin sauti. Hayaniyar da farantin bawul ɗin ke buga farantin bawul lokacin da kwampreta ke fitarwa na cikin hayaniyar tasiri.

(3) Hayaniyar tsari. Hayaniyar da ke haifar da girgizawar tashin hankali da watsawar jijjiga na ƙaƙƙarfan abubuwa ana kiranta hayaniyar tsari. Jujjuyawar eccentric nacompressorna'ura mai juyi da faifan rotor za su haifar da tashin hankali na lokaci-lokaci zuwa harsashi, kuma amo da girgizar harsashi ke haskakawa shine hayaniyar tsari.

(4) surutun shaye-shaye. Za'a iya raba hayaniyar fitar da hayaniya zuwa hayaniyar jet mai shayewa da hayaniya mai shayewa. Hayaniyar da zafi mai zafi da iskar gas mai ƙarfi ke fitowa daga ramin huɗa cikin sauri na hayaniya ce ta jet. Hayaniyar da ke haifar da jujjuyawar iskar iskar iskar iskar iskar iskar iskar gas ce ta hayaniya.

(5) surutu mai ban sha'awa. Suction amo za a iya raba tsotsa turbulence amo da tsotsa pulsation amo. Hayaniyar rawan ginshiƙi na iska da aka haifar ta rashin tsayawar iska mai gudana a cikin tashar sha yana cikin hayaniyar tashin hankali. Hayaniyar jujjuyawar matsin lamba da tsotsawar kwampreta na lokaci-lokaci ke haifar da amo na bugun bugun jini.

(6) Hayaniyar lantarki. Yin hulɗar filin maganadisu a cikin ratar iska yana haifar da ƙarfin radial wanda ke canzawa tare da lokaci da sararin samaniya, yana aiki a kan kafaffen da kuma rotor core, yana haifar da nakasawa na lokaci-lokaci na ainihin, don haka yana haifar da amo na lantarki ta hanyar rawar jiki da sauti. Hayaniyar aikin kwampreso drive nasa ne na amo na lantarki.

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Bukatun gwajin NVH da maki gwaji

An shigar da kwampreso akan madaidaicin madaidaicin, kuma ana buƙatar yanayin gwajin amo don zama ɗaki na rabin-anechoic, kuma hayaniyar baya tana ƙasa da 20 dB(A). An jera makirufonin a gaba (gefen tsotsa), na baya (gefen shaye-shaye), saman, da gefen hagu na kwampreso. Nisa tsakanin shafuka hudu shine 1 m daga cibiyar geometric nacompressorsurface, kamar yadda aka nuna a cikin wannan adadi.

Kammalawa

(1) Hayaniyar damfarar wutar lantarki ta ƙunshi ƙarar injina, hayaniyar pneumatic da amo na lantarki, kuma ƙarar wutar lantarki tana da tasirin da ya fi fitowa fili kan ingancin sauti, kuma inganta ƙarfin amo na lantarki hanya ce mai inganci don inganta sauti. ingancin lantarki kwampreso.

(2) Akwai bambance-bambance a bayyane a cikin maƙasudin ma'auni na ingancin sauti a ƙarƙashin maki daban-daban na filin da yanayin gudu daban-daban, kuma ingancin sautin a bayan hanya shine mafi kyau. Rage saurin aiki na kwampreso a ƙarƙashin yanayin gamsar da aikin firiji da kuma fifita zaɓin kwampreso zuwa ɗakin fasinja yayin aiwatar da shimfidar abin hawa yana da amfani don haɓaka ƙwarewar tuƙi na mutane.

(3) Rarraba band mita na halayyar ƙarar na'urar kwamfyutar lantarki da ƙimarsa mafi girma yana da alaƙa ne kawai da matsayin filin, kuma ba shi da alaƙa da saurin. Ƙwararriyar ƙarar ƙararrakin kowane fasalin sautin filin ana rarraba shi ne a tsakiya da matsakaicin mita, kuma babu wani abin rufe fuska na injin, wanda ke da sauƙin ganewa da kokewa daga abokan ciniki. Dangane da halaye na kayan rufewar sauti, ɗaukar matakan insulation na sauti akan hanyar watsawa (kamar yin amfani da murfin murfi don nannade na'urar kwampreso) na iya rage tasirin hayaniyar kwampresar wutar lantarki da kyau akan abin hawa.


Lokacin aikawa: Satumba-28-2023