The thevibration trementHY-3SF inoita basa rinokosha mumidziyo yemidziyo yekuongorora uye kukanganisa kuongororwa. Kugadziriswa kwakaringana chiratidzo ndiko kuwirirana kwebasa raro rinoshanda, izvo zvinokanganisa zvakananga kutongwa kwemidziyo uye kufanotaura kwekukanganisa. Chinyorwa ichi chinojekesa pachiitiko chekugadzirisa chiratidzo che hy-3sf.

Kuwana Kuwana

1. Sensor kubuda

HY-3SF inotanga inowana chiratidzo kubva kune sosi yeVibration, kazhinji kuburikidza neAcceleration sensorKuti uwane nguva-domain kusiyana kweAnalog chiratidzo chine michina yekushandisa ruzivo. Semuenzaniso, mukuongorora kwemishini yakakura inotenderera senge turbines kana vajeresi, maSensoration Sensors akaiswa mune zvakakosha zvikamu zvemidziyo, senge fani.

Aya ma sensors anogona kushandura mechanical vibration mumagetsi emagetsi, uye maitiro ezviratidzo zvavo zvekubuda senge amplitude uye frequency akanyatsoenderana neyekuvhura mamiriro emidziyo. Semuenzaniso, kana zvishandiso zvacho zvichishanda zvakajairika, iyo yekuwedzera chiratidzo inoshatisa mukati meiyo yakagadzikana renji; Kana zvishandiso zvikatadza, zvakadai sekusaita zvisirizvo kana kupfeka, iyo yekuvhara uye huwandu hwechiratidzo chechiratidzo chinochinja zvakanyanya.

2. Sampling paramende kutsunga

Muchirongwa cheDhijitari hy-3sf, kudzoreredza zvakanyatsonaka iyo nguva domain waveform, chiyero chekutanga uye nhamba yemasampuji emasampling anofanira kutsanangurwa. Kureba kwenguva yekutarisa kwakaenzana nenguva yekukurudzira yakawedzerwa nehuwandu hwehuwandu hwemasampula. Semuenzaniso, kana iyo nguva yekuchinja yechiitiko chekutariswa ndeye 1 yechipiri, maererano nesampling theorem (nyquist sampling theorem), iyo sampling frequency inofanira kunge yakakura kupfuura kaviri iyo yakakwira frequental yeChiratidzo. Kufunga kuti iyo yepamusoro yeVibration frequency yeiyo midziyo ndeye 500hz, iyo sampling frequency inogona kusarudzwa kuve pamusoro pe 1000hz.

Iko kusarudzwa kwehuwandu hwemasampiro ekusangana zvakare zvakare kutsoropodza. Sarudzo dzakajairika ndi 1024, simba re 2 nhamba, iyo isiri chete nyore kune yakakwana yekuverenga fft kuverenga, asi zvakare ine zvimwe zvakanakira mukugadzirisa data.

Signal mamiriro

1. Kucheka

Yakaderera-Pasi Faira: Inoshandiswa kubvisa yakakwira-frequency yekukanganisika ruzha. Semuenzaniso, padyo nemimwe michina yemagetsi, panogona kunge paine yakakwirira-frequency electromagnetic kupindira. Iyo yakadzika-yefaira inokwanisa kubvisa izvi zviratidzo zvakakwirira kupfuura zvakajairwa vibration frequency mitezo yemidziyo uye chengetedza yakaderera-frequency kusvika pakati-frequency vibration signal zvikamu.

Yakakwira-Pasi Faira: inogona kubvisa DC uye yakaderera-frequency ruzha. Munguva yekutanga-kumusoro kana kumisa chikamu chemimwe michina, panogona kunge paine yakaderera-frequency yekubvisa kana kudhiraivha masaini. Iyo yakakwira-yepasiti yekufa inokwanisa kuvapa kuti ive nechokwadi chekuti chiratidzo chinonyanya kuratidza kuti yakajairika kushanda kweiyo michina yeiyo michina inochengetwa.

BandPass Filter: BandPass Filter inouya mukutamba pazvinenge zvichidikanwa kutarisa pane iyo vibration chiratidzo mukati meiyo chaiyo frequency. Semuenzaniso, kune mamwe michina neyakananga kutenderera frequency chikamu, nekuisa yakakodzera bandter first

2. Signal kutendeuka uye kubatanidzwa

Mune zvimwe zviitiko, chiratidzo chekusimudzira chinoda kushandurwa kuita velocity kana kuratidzira chiratidzo. Nekudaro, kune matambudziko mune iyi shanduko yekushandura. Kana vhezheni kana kuratidzira chiratidzo chinogadzirwa kubva kune yekuwedzera sensor, iyo yekuisa chiratidzo inonyatsoitwa neAnalog Dunhu nekuti iyo Dhijitari yekubatanidza inogumira neiyo / d kushandurwa kwekushandurwa. Nekuti zviri nyore kuunza zvimwe zvikanganiso mudunhu redhijitari, uye kana paine kukanganiswa kuderera, kuwirirana kweDhijitari kuchakurudzira uku kupindira uku.

FFT (Kurumidza Fourer Shanduko) Kugadzirisa

1. Nheyo dzekutanga

HY-3SF inoshandisa FFT Kugadziriswa kwekurasa nguva-yakasarudzika yepasi rose yekuisa chiratidzo sumpling mune ayo ega ega mari. Kuita uku kwakafanana nekushora kuomarara kwakasanganiswa chiratidzo chiratidzo mune imwe zvinyorwa.

Semuenzaniso, nekuda kwechiratidzo chakaomesesa chine huwandu hwehuwandu hwakawandisa panguva imwe chete, FFT inogona kuora nenzira kwayo kuti iwane iyo amplitude, chikamu uye frequency ruzivo rwechikamu chimwe nechimwe.

2. Paramende yekuisa

Mitsara yekugadzirisa: Semuenzaniso, unogona kusarudza akasiyana ekugadzirisa mitsara yakadai se100, mazana mana, etc. Mutsetse wega wega uchaenzana neFmax (iyo yakakwira fmax kuti chiridzwa chinogona kuwana uye kuratidzwa) zvakakamurwa nehuwandu hwemitsetse. Kana FmaX iri 120000CPM, 400 mitsara, kugadzirisa ndeye 300cpm pamutsara.

Maximum frequency (Fmax): Kana ichitsvaga Fmax, paramita yakadai seyenzi-aliying mafirita akaiswawo. Iyo ndiyo yepamusoro frequency yekuti chiridzwa chinogona kuyera nekuratidzira. Paunenge uchisarudza, inofanira kutsanangurwa zvichienderana neyekutarisirwa yeVibration frequency mitezo yemidziyo.

Avhareji yemhando uye avhareji nhamba: Kuwedzera kunobatsira kuderedza kukanganiswa kwerudzi rusina. Dzakasiyana-siyana dzinozvivharira marudzi (senge arithmetic zvinoreva, geometric zvinoreva, nezvimwewo) uye yakakodzera avhareji nhamba inogona kuvandudza kugadzikana kwechiratidzo.

Window Type: Iyo sarudzo yewindows mhando inokanganisa iyo chaiyo yekuongorora spectrum. Semuenzaniso, mhando dzakasiyana dzewindows mabasa senge hwindo reHanning uye Hunming hwindo rine zvadzo zvakanakira mune akasiyana mamiriro ezvinhu.

Kuongororwa kwedata kuongororwa

1. Treend Analysis

Nekuita nguva yakatarwa yekuongorora pane yakagadziriswa vibration chiratidzo che data, maitiro eiyo huwandu hwehuwandu hwehuwandu hwakacherechedzwa. Semuenzaniso, sezvo zvishandiso zvichimanikidza, zvinoregedza huwandu hwakazara hunowedzera zvishoma nezvishoma, kuderera, kana kuramba hwakagadzikana? Izvi zvinobatsira kuziva hutano hwese hwemidziyo. Kana iyo yakazara vibration amplitude yakaderera pakutanga kwekushanda kwakajairika kwemidziyo uye zvishoma nezvishoma zvinowedzera mushure menguva yakati, inogona kuratidza kuti michina inogona kupfeka kana njodzi.

2. Chekutadza Chiziviso Chiziviso

Ziva mhando yekukanganisa yakavakirwa pane iyo amplitude hukama hwehukama hweimwe neimwe frequency chikamu chechiratidzo chehukama. Semuenzaniso, kana zvishandiso zvacho zvine mhosva isina kugadzikana, vibration yakakura amplitude inowanzoonekwa pane iyo simba frequency yeiyo inotenderera chikamu (senge nguva inoenderana ne1 nguva kumhanya); Uye kana paine mhosva ine chekuita, chiratidzo chisina kujairika chehunyanzvi chinozoonekwa pachikamu chenguva zhinji chine chekuita neyakasikwa frequency yekubereka.

Panguva imwecheteyo, pasi pemamiriro ezvinhu akafanana, hukama hwechikamu chechikamu chechikamu chemuchina hukama neimwe nzira yekuyera pamushini vanogona zvakare kupa zviratidzo zvekuongororwa zvisina mhosva. Semuenzaniso, mune maviri matatu ekutenderera midziyo, kana asina kuwirirana, musiyano wechiratidzo chezvikwangwani chavo chehusimbe chichava chakasiyana nezvakajairwa.

Iyo signal yekugadzirisa maitiro eiyo vibration trever hy-3sf itsika yakaoma uye yakarongeka maitiro. Kubva pane kusaina kuwana kuFFT kugadzirisa uye yekupedzisira yakakwana data yekuongorora, chimwe nechimwe chinongedzo chakakosha. Kugadziriswa kwakaringana chiratidzo kunogona kupa hwaro hwakavimbika hwekufanotaura nezvekugadziriswa kwemaindasitirwo emidziyo, batsirai nguva yekukanganisika kwekushandisa, uye kuvandudza midziyo yekuvimbika uye kushanda kwemidziyo. Kuburikidza nekunyatsonzwisisa uye kunyatsonzwisisa kwekushandisa kwakasiyana kwechiratidzo.

Paunenge uchitsvaga yakakwirira-mhando, yakavimbika vibration monitors, yoyik pasina mubvunzo sarudzo yakakodzera kufunga nezvayo. Iyo kambani inokatyamadza mukupa mhando yemidziyo yemasimba inosanganisira steam turbine accessories, uye yakawedzera kukwikwidza kune zvigadzirwa zvemhando yepamusoro uye masevhisi. Kuti uwane rumwe ruzivo kana kubvunza, ndapota taura neBasa revatengi pazasi:

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