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GRMS ndiyo root avhareji yekuwedzera simba (root mean square acceleration value) inoratidzwa mumayuniti e g. Mu vibration engineering, zvisinei, inogona kureva kuwedzera simba kwenzvimbo yekutenderera isina kurongeka, kana kuti inogona kuoneka muzvimiro zve vibration motor kuratidza kubuda kwakayerwa pasi pemamiriro chaiwo ekuyedza. Izvi zviviri hazvigone kuenzaniswa zvakananga zvichibva pamayuniti chete.

Chinyorwa chino chinotsanangura zvinorehwa neGRMS, mayuniti ayo, uye kuti inoverengwa sei. Chinotsanangurawo kuti mainjiniya vanofanira kududzira sei data reGrms muzvimiro zvemota dze micro vibration uye kuti ndeapi mamiriro ezvinhu anofanira kuongororwa pakuenzanisa mhedzisiro yebvunzo. Semugadziri wemota dze micro vibration, LEADER inonyora maparamita e vibration emamodheru anoenderana muzvinyorwa zvechigadzirwa chayo; data iri rinofanira kunzwisiswa pamwe chete nemodheru chaiyo nemamiriro ebvunzo.

Chii chinonzi GRMS?

GRMS ndiyo root avhareji ye square value ye acceleration signal, inowanzo ratidzwa se gRMS. Mukuyedza kusingatarisirwi vibration, inopfupikisa acceleration yeRMS yese mukati me frequency range yakatarwa. Mu vibration motor specifications, Grms inogonawo kumiririra acceleration output inoyerwa pasi pemamiriro chaiwo ebvunzo.

Paunoona maGRMS kana maGrms, danho rekutanga nderekusimbisa zviri kuyerwa: data rinotsanangura here nzvimbo yekudedera isina kurongeka iyo mudziyo uri kuitirwa, kana kuti kubuda kwededera kunogadzirwa nemota pachayo? Kunyangwe mhando mbiri idzi dzedata dzichishandisa mayuniti akafanana, zvinangwa zvavo zvekuyera nemamiriro ekuyedza zvakasiyana, uye hazvigone kuenzaniswa zvakananga zvichibva panhamba chete.

Zita Rakazara uye Chikamu cheGRMS Chii?

GRMS inowanzoreva kukurumidza kweRMS (Root Mean Square) kunoratidzwa mumayuniti e g. RMS inzira yekuverenga yekugadzirisa zviratidzo zvakasiyana-siyana; g ndiyo yuniti yekukurumidzira kwegiravhiti, uye 1g inenge yakaenzana ne9.81m/s29.81m/s2.

Mumagwaro einjiniya, inowanzo nyorwa se gRMS, Grms, kana GRMS. Pasinei nezvakanyorwa, mamiriro acho anofanira kuongororwa kuti asimbise kuti chiyero chinomiririra kukurumidza, kwete kuchinjika kwekudengenyeka, kumhanya, kana kumhanya kwemota. Kune zvinodiwa nemota, nzira yekuyedza nemamiriro emota inoenderana nayo inofanirawo kuongororwa.

GRMS Inoverengwa Sei?

GRMS inogona kuverengerwa kubva padata rekuwedzera nguva kana kubva paPDD curve yefrequency-domain. Nzira yekuwedzera nguva yakavakirwa pamuenzaniso wekuwedzera nguva; nzira yePSD inobatanidza huwandu hwespectral yekuwedzera nguva pamusoro pehuwandu hwakatarwa hwefrequency. Nzira dzese dziri mbiri dzinoda tsananguro yakajeka yehuwandu hwedata nemamiriro ekuyedza.

Kuverenga kubva kuTime-Domain Acceleration Data

Pa data rakatorwa panguva, RMS acceleration yakaenzana ne square root yeavhareji yemasampuli ese ekumhanyisa acceleration ascenses:

uko a1a1 kuburikidza neani mienzaniso yekumhanyisa uye nˉnˉ ndiyo nhamba yemasampuli. Kana chiratidzo chiine sensor offset kana zvikamu zveDC zvisina kugadzirwa nekuzunguzika, kugadziriswa kunofanirwa kuitwa usati waverenga zvichienderana nenzira yekuyera. Kana data racho rikaratidzwa mu m/s2m/s2, rinogona kushandurwa kuita ggnekukamura neanenge 9.81.

Kuverenga kubva paPSD Curve

Kuyedzwa kweRandom vibration kunowanzo shandiswa acceleration Power Spectral Density (PSD) kutsanangura kugoverwa kwevibration mumafrequencies akasiyana. PSD units dzinowanzova g2/Hzg2/Hz. Nekubatanidza PSD pamusoro pefrequency range yakatarwa uye wobva watora square root yenzvimbo yakabatanidzwa, GRMS inowanikwa.

GRMS==√(Nzvimbo Yakabatanidzwa yePSD pamusoro peFrequency Range Yakatarwa)

Chikamu chenzvimbo yakabatanidzwa yePSD i g2g2, uye kutora mudzi wechikwere kunobereka gRMS. Kune ma curves akaumbwa nezvikamu zvakawanda zvema frequency uye materu akasiyana, nzvimbo yechikamu chimwe nechimwe inofanira kuverengerwa zvakasiyana uchishandisa nzira yakakodzera, yakapfupikiswa, uye wobva watora mudzi wechikwere. Kuverenga chaiko kunofanirwa kutevedzera nzira inoshanda ye test specification kana analysis software. Rudzi rwema frequency runokanganisawo mhedzisiro yekupedzisira, saka kana uchienzanisa ma GRMS maviri, simbisa kuti frequency range yakafanana uye PSD conditions zvakashandiswa.

Ndeupi Musiyano Uripo Pakati peGRMS, G Peak, uye Peak-to-Peak?

GRMS, G Peak, uye Peak-to-Peak zvinotsanangura hunhu hwakasiyana hwechiratidzo chekudengenyeka uye hazvigone kuchinjaniswa zvakananga. GRMS inomiririra kukurumidza kwepakati pepakati pechikamu chechiratidzo; G Peak inomiririra kukurumidza kukuru panguva imwe chete panguva yekuyera; Peak-to-Peak inomiririra musiyano uripo pakati pehukuru hwepamusoro nehudiki.

Chiyero	Zvazvinomiririra	Zvekucherechedza pakushandisa
GRMS / gRMS	Chikamu chepakati chepakati chepakati chechikamu chechiratidzo chekukurumidzira	Chinhu chekuyerwa, huwandu hwema frequency, uye mamiriro ekuyedzwa zvinofanirwa kutsanangurwa
G Peak	Kukurumidza kukuru panguva yekuyera	Inokanganiswa nehunhu hwepamusoro pechiratidzo uye nguva yekurekodha
Kusvika Pakukwira Kwegomo	Musiyano uripo pakati pehukuru hwepamusoro nehudiki	Hazvigone kuwanikwa pasi rose kubva kuRMS values

Kuti pave ne sine wave yakakwana, pane hukama hwakagadzika pakati peRMS ne peak value; zvisinei, peak value ye random vibration signal inoenderana nekugoverwa kwesignal, crest factor, uye nguva yekurekodha, uye sine wave formula haigone kushandiswa zvakananga. Mainjiniya havafanirwe kufungidzira peak kana peak-to-peak value ye random vibration kubva pa GRMS value imwe chete.

Zvinorevei Grms muVibration Motor Datasheets?

Mumapepa edata emota dze micro vibration, maGrms anowanzo miririra kubuda kwekukurumidzira kunoyerwa pasi penzira dzakatarwa dzekuedza. Haisi "simba rehaptic" rakagadzika rinoramba riripo pasinei negadziriro yekuedza, uye rinofanira kududzirwa pamwe chete nemuenzaniso, mamiriro ekutyaira, uye nzira yekuyera.

Semuyenzaniso,FPCB-0820 yemutungamiriMagwaro echigadzirwa anoratidza kukosha kwekutenderera kwe0.6 Grms. Kukosha uku kunofanirwa kunzwisiswa pamwe chete nemuenzaniso unoenderana nedatasheet; kana ikashandiswa pakuenzanisa kweinjiniya, zvakakoshawo kusimbisa kana mamiriro chaiwo ekuyera akafanana.

Sei Mota Imwe Chete Ingayera MaGrms Akasiyana?

Kusiyana kwekuisa, fixture, load, measure axis, uye drive conditions zvese zvinogona kukonzera kuti mota imwe chete ikwanise kuyera maGrms akasiyana. Kuomarara kwefixture uye damping zvinokanganisa vibration transmission; nzvimbo dzakasiyana dzeaccelerometer kana maorientation zvinogonawo kunyora mhinduro dzakasiyana. Drive voltage, LRA drive frequency, clamping pressure, uye housing structure zvinogonawo kuchinja mhedzisiro yekuyera.

Kuti bvunzo dzivandudzwe, zvinokurudzirwa kunyora modhi yemota, mamiriro ekutyaira, nzira yekumisikidza, mutoro, nzvimbo yeaccelerometer, chiyero chekuyera, huwandu hwemafrequency, uye nguva yekuyedza yekuyerwa kwega kwega. Pakuenzanisa data, mamiriro aya anofanira kuchengetwa akafanana sezvinobvira, uye chero mamiriro asingakwanise kuenzaniswa anofanira kunyorwa zvakajeka.

Chii Chingakuudzirwe neGRMS, uye Chii Chisingakuudze Chega?

GRMS inogona kupfupisa huwandu hwese hwekuwedzera kweRMS pasi pemamiriro chaiwo ekuyera, asi kukosha kumwe chete hakugone kutsanangura zvizere chiratidzo chekudengenyeka. Kune nzvimbo dzisina kurongeka dzekudengenyeka, GRMS yega haigone kuratidza kuti simba rekudengenyeka rinowanikwa ma frequency api; kuongororwa kweinjiniya kunogona zvakare kuda kuongorora PSD curve, huwandu hwefrequency hwakatarwa, uye nguva yekuyedza.

Kukosha kumwe chete kweGRMS hakugone kuratidza zvakananga:

Kukosha kukuru kwekukurumidza kwekukurumidza mukudengenyeka kwekusarongeka;

Mupiro wemabhendi akasiyana-siyana efrequency kune mhinduro yese;

Kana kuzununguka kwakanyanya kunoitika muchimiro chechigadzirwa;

Kuti hupenyu hwebasa remota kana kuvimbika kwayo zvinosangana nezvinodiwa here;

Kuti kudedera kwekupedzisira kwemushandisi kwakasimba here kana kuti kwakasununguka.

Kana tichiongorora kuzununguka kusingatarisirwi kuri kuitwa nemidziyo, frequency spectrum nenguva yekuyedzwa zvinofanirwa kufungwa pamwe chete. Kana tichiongorora kubuda kwemota, modhi, dhiraivha, fixture, load, uye measurement axis zvinofanirwa kufungwa pamwe chete. Hapana kana imwe yenyaya idzi inofanira kufungwa nezvayo pakusarudza nhamba imwe chete yeGRMS.

Ruzivo Rupi Runofanira Kupihwa Mugadziri Pakuongorora Micro Vibration Motors?

Pakuongorora zvinodiwa nemota kana masampuli, timu yeinjiniya inofanira kutsanangura chinhu chekuyera, zviyero zvechinangwa, uye mamiriro chaiwo ekushandiswa. Ruzivo urwu runobatsira LEADER kuona kana purojekiti yacho ine chekuita nekudedera kwemuchina nharaunda kana kubuda kwemota, uye kusimbisa zvinodiwa kana mamiriro ekuongorora sampuro.

Kugadzirira kunokurudzirwa:

Rudzi rwechigadzirwa uye chinangwa chekushandisa;

Kana ongororo yacho iine chekuita nekudengenyeka kwezvakatipoteredza kana kubuda kwemota;

Target Grms, G Peak, kana zvimwe zviyero zve vibration;

Rudzi rwemafrequency anoshanda pamwe nezvinodiwa zvebvunzo zvine chekuita nazvo;

Nzvimbo yekuisa injini, kurongeka, nzira yekugadzirisa, uye chimiro chechigadzirwa;

Voltage iripo, dhiraivha yedhiraivha, uye frequency yedhiraivha yeLRA (kana zvichibvira);

Chigadziko chekuyedza, mutoro, uye nzvimbo yeaccelerometer (kana paine gadziriro yekuyedza yatovapo);

Mota yemotokari, huwandu hwemuenzaniso, uye danho reprojekiti rinofanira kuongororwa.

Kana kukosha kwechinangwa kusati kwawanikwa, unogona kutanga wapa chimiro chechigadzirwa, mamiriro ekutyaira, mishumo yekuedza iripo, kana ma prototypes ekutarisa. LEADER inogona kusimbisa zvakare ma parameter aripo uye zvinodiwa zvekuongorora sampuro zvichibva pane zvakanyorwa zvemuenzaniso chaiwo.

Ongorora Mutungamiririmhinduro diki dzemota dze vibration or sarudzo dzemota dzakagadzirwa nemutsetsepakuongorora mota dzemagetsi diki.

Chii Chinonzi GRMS?

GRMS inowanzoreva kukosha kwekuwedzera kwepakati pechikwere kunoratidzwa mumayuniti e g. Inotsanangura mwero weRMS wechiratidzo chekumhanyisa, uye zvarinoreva chaizvo zvinofanira kutsanangurwa pamwe chete nechinhu chekuyera nemamiriro ekuyedza.

Chii chinonzi Unit yeGRMS?

GRMS inowanzo nyorwa se gRMS yekukurumidzisa. 1g inenge yakaenzana ne 9.81 m/s29.81 m/s2. Mumagwaro einjiniya, inogonawo kunyorwa se gRMS, Grms, kana GRMS.

Ko GRMS yakafanana neG Peak here?

GRMS yakafanana neG Peak here? Kwete. GRMS ndiyo root mean square acceleration value, nepo G Peak iri iyo maximum instantaneous acceleration panguva yekuyerwa. Hukama huripo pakati pezviviri hunoenderana nesignal waveform; random vibration haigone kushandurwa zvakananga uchishandisa ideal sine wave formula.

Ko mota mbiri dzeVibration dzinogona kuenzaniswa zvichibva paGrms Values chete here?

Hazvikurudzirwi. Zvinofanira kusimbiswa kana chigadzirwa chekuyedza, mutoro, kurongeka kwekukwidza, mamiriro ekutyaira, uye nzira yekuyera zvakafanana kune ese ari maviri mota. Kana mamiriro ekuyedza akasiyana, kuenzanisa maGrms chete kunogona kutungamira kumhedzisiro isiriyo.

Ko maGrms ari muMota Datasheet anogona here kuratidza Kusimba kweVibration Intensity Kunonzwiwa Nemushandisi?

MaGrms ari mudata remota anogona here kumiririra simba rekuti vibration inonzwa sei nemushandisi? Haagone kumiririra izvi ega. MaGrms ari mudata re data inhamba yakayerwa pasi pegadziriro chaiyo yekuyedza; kutumirwa kwevibration chaiko kunokanganiswawo nehousing, nzira yekumisikidza, huwandu hwemudziyo, nzvimbo yekubata, uye mamiriro ekutyaira, uye anofanira kusimbiswa muchimiro chakanangana nacho.

Mhedziso

GRMS i root mean square metric yekumhanyisa, asi mumamiriro akasiyana, inogona kutsanangura nzvimbo yekutenderera isina kurongeka kana kumiririra kubuda kwemota yekutenderera yakayerwa pasi pemamiriro chaiwo. Usati wadudzira kana kuenzanisa data, chinhu chekuyera, mayuniti, huwandu hwema frequency, uye mamiriro ekuyedza zvinofanirwa kutanga zvasimbiswa.