Chiyambi
GRMS ndi muzu wa mean sikweya acceleration value yomwe imafotokozedwa mu mayunitsi a g. Komabe, mu vibration engineering, ikhoza kutanthauza kufulumira konse kwa malo ogwedezeka mwachisawawa, kapena ikhoza kuwoneka mu mafotokozedwe a vibration motor kusonyeza kutulutsa komwe kumayesedwa pansi pa mikhalidwe yeniyeni yoyesera. Awiriwa sangayerekezedwe mwachindunji kutengera mayunitsi okha.
Nkhaniyi ikufotokoza tanthauzo la GRMS, mayunitsi ake, ndi momwe imawerengedwera. Ikufotokozanso momwe mainjiniya ayenera kutanthauzira deta ya Grms muzofotokozera za ma micro vibration motor ndi mikhalidwe yomwe iyenera kutsimikiziridwa poyerekeza zotsatira za mayeso. Monga wopanga ma micro vibration motor, LEADER imalemba magawo a vibration a mitundu yofananira muzolemba zake zamalonda; deta iyi iyenera kumvedwa mogwirizana ndi mtundu weniweni ndi mikhalidwe yoyesera.
Kodi GRMS ndi chiyani?
GRMS ndi mtengo wapakati wa sikweya wa chizindikiro chofulumira, chomwe nthawi zambiri chimafotokozedwa ngati gRMS. Mu kuyesa kugwedezeka mwachisawawa, imafotokozera mwachidule kuthamanga kwa RMS konse mkati mwa kuchuluka kwa ma frequency komwe kwatchulidwa. Mu mafotokozedwe a injini yogwedezeka, Grms ikhozanso kuyimira kutulutsa kwa kuthamanga komwe kumayesedwa pansi pa mikhalidwe inayake yoyesera.
Mukawona ma GRMS kapena ma Grms, gawo loyamba ndikutsimikizira zomwe zikuyesedwa: kodi deta ikufotokoza malo ogwedezeka mwachisawawa omwe chipangizocho chikuchitikira, kapena kutulutsa kwa kugwedezeka komwe kumapangidwa ndi mota yokha? Ngakhale kuti mitundu iwiriyi ya deta imagwiritsa ntchito mayunitsi ofanana, zolinga zawo zoyezera ndi mikhalidwe yoyesera zimasiyana, ndipo sizingayerekezedwe mwachindunji kutengera manambala okha.
Kodi Dzina Lonse ndi Gawo la GRMS ndi Chiyani?
GRMS nthawi zambiri imatanthauza kufulumira kwa RMS (Root Mean Square) komwe kumafotokozedwa m'mayunitsi a g. RMS ndi njira yowerengera yogwiritsira ntchito zizindikiro zosiyanasiyana; g ndi gawo la kufulumira kwa mphamvu yokoka, ndipo 1g ndi pafupifupi yofanana ndi 9.81m/s29.81m/s2.
Mu zolemba zaukadaulo, nthawi zambiri zimalembedwanso kuti gRMS, Grms, kapena GRMS. Mosasamala kanthu za mawu omwe agwiritsidwa ntchito, nkhaniyo iyenera kufufuzidwa kuti itsimikizire kuti metric ikuyimira kuthamanga, osati kugwedezeka, liwiro, kapena liwiro la mota. Pazofotokozera za mota, njira yoyesera ndi mikhalidwe ya chitsanzo chofananira ziyeneranso kuwunikidwanso.
Kodi GRMS Imawerengedwa Bwanji?
GRMS ikhoza kuwerengedwa kuchokera ku deta yofulumira ya nthawi kapena kuchokera ku PSD curve ya frequency-domain. Njira ya nthawi imachokera pa zitsanzo zingapo zofulumira; njira ya PSD imagwirizanitsa kuchuluka kwa ma spectral acceleration pamtundu wina wa frequency. Njira zonsezi zimafuna kutanthauzira bwino mtundu wa deta ndi mikhalidwe yoyesera.
Kuwerengera kuchokera ku Time-Domain Acceleration Data
Pa data yosankhidwa ndi nthawi, RMS acceleration imafanana ndi muzu wa sikweya wa avareji ya zitsanzo zonse zofulumira sikweya:
kumene a1a1 kudzeraanndi zitsanzo za kufulumira ndi nˉnˉ ndi chiwerengero cha zitsanzo. Ngati chizindikiro chili ndi sensor offset kapena zigawo za DC zomwe sizimapangidwa ndi kugwedezeka, ziyenera kukonzedwa musanawerengere malinga ndi njira yoyezera. Ngati deta yafotokozedwa mu m/s2m/s2, ikhoza kusinthidwa kukhala ggpogawa ndi pafupifupi 9.81.
Kuwerengera kuchokera ku PSD Curve
Kuyesa kugwedezeka mwachisawawa nthawi zambiri kumagwiritsa ntchito acceleration Power Spectral Density (PSD) pofotokoza kufalikira kwa kugwedezeka pamafupipafupi osiyanasiyana. Mayunitsi a PSD nthawi zambiri amakhala g2/Hzg2/Hz. Mwa kuphatikiza PSD pamtundu wafupipafupi womwe watchulidwa kenako ndikutenga muzu wa sikweya wa malo ophatikizika, GRMS imapezeka.
GRMS==√ (Malo Ophatikizidwa a PSD pa Ma Frequency Range Otchulidwa)
Gawo la malo ophatikizidwa a PSD ndi g2g2, ndipo kutenga muzu wa sikweya kumabweretsa gRMS. Pa ma curve opangidwa ndi magawo angapo a ma frequency ndi malo otsetsereka osiyanasiyana, dera la gawo lililonse liyenera kuwerengedwa padera pogwiritsa ntchito njira yoyenera, yofupikitsidwa, kenako muzu wa sikweya utengedwe. Kuwerengera kwenikweni kuyenera kutsatira njira yoyenera yoyesera kapena njira yowunikira. Ma frequency range amakhudzanso zotsatira zomaliza, kotero poyerekeza ma GRMS awiri, tsimikizirani kuti ma frequency range ndi mikhalidwe ya PSD zomwezo zidagwiritsidwa ntchito.
Kodi pali kusiyana kotani pakati pa GRMS, G Peak, ndi Peak-to-Peak?
GRMS, G Peak, ndi Peak-to-Peak zimafotokoza makhalidwe osiyanasiyana a chizindikiro cha kugwedezeka ndipo nthawi zambiri sizingasinthidwe mwachindunji. GRMS imayimira kufulumira kwapakati pa sikweya ya gawo la chizindikiro; G Peak imayimira kufulumira kwakukulu nthawi yomweyo poyesa; Peak-to-Peak imayimira kusiyana pakati pa mitengo yayikulu ndi yocheperako.
| Chiyerekezo | Zimene Zimayimira | Zoyenera Kudziwa Mukamagwiritsa Ntchito |
| GRMS / gRMS | Muzu wapakati pa sikweya wa gawo la chizindikiro chofulumira | Chinthu choyezera, kuchuluka kwa mafupipafupi, ndi mikhalidwe yoyesera ziyenera kufotokozedwa |
| G Peak | Kuthamanga kwakukulu nthawi yomweyo panthawi yoyezera | Zimakhudzidwa ndi mawonekedwe a pachimake cha chizindikiro ndi nthawi yojambulira |
| Kufika Pachimake | Kusiyana pakati pa mitengo yayikulu ndi yocheperako | Sizingatheke kuti zichokere ku mfundo za RMS padziko lonse lapansi |
Kuti mukhale ndi mafunde abwino a sine, pali ubale wokhazikika pakati pa RMS ndi mtengo wapamwamba; komabe, mtengo wapamwamba wa chizindikiro cha kugwedezeka mwachisawawa umadalira kufalikira kwa chizindikiro, crest factor, ndi nthawi yojambulira, ndipo fomula ya mafunde a sine singagwiritsidwe ntchito mwachindunji. Mainjiniya sayenera kuyerekeza mtengo wapamwamba kapena wapamwamba wa kugwedezeka mwachisawawa kuchokera ku mtengo umodzi wa GRMS wokha.
Kodi Grms Amatanthauza Chiyani mu Vibration Motor Datasheets?
Mu ma datasheet a ma micro vibration motor, ma Grms nthawi zambiri amaimira mphamvu yothamanga yomwe imayesedwa pansi pa njira ndi mikhalidwe yeniyeni yoyesera. Si "mphamvu ya haptic" yokhazikika yomwe imakhalabe yokhazikika mosasamala kanthu za kukhazikitsidwa kwa mayeso, ndipo iyenera kutanthauziridwa pamodzi ndi chitsanzo, mikhalidwe yoyendetsera, ndi njira yoyezera.
Mwachitsanzo,FPCB-0820 ya MtsogoleriZolemba za malonda zimalemba mtengo wogwedezeka wa 0.6 Grms. Mtengo uwu uyenera kumvedwa limodzi ndi chitsanzo chogwirizana ndi deta; ngati ugwiritsidwa ntchito poyerekeza zaukadaulo, ndikofunikiranso kutsimikizira ngati mikhalidwe yeniyeni yoyezera ikugwirizana.
N’chifukwa chiyani injini yomweyo ingayese ma Grms osiyanasiyana?
Kusiyana kwa malo oikira, chogwirira, katundu, mzere woyezera, ndi mikhalidwe yoyendetsera zonse kungayambitse injini yomweyo kuyeza ma Grms osiyanasiyana. Kuuma kwa chogwirira ndi kuuma kwa chogwirira kumakhudza kutumiza kwa kugwedezeka; malo osiyanasiyana a accelerometer kapena malo owongolera amathanso kulemba mayankho osiyanasiyana. Voltage ya drive, ma frequency a drive a LRA, kuthamanga kwa clamping, ndi kapangidwe ka nyumba zimatha kusinthanso zotsatira za muyeso.
Kuti muwongolere kubwerezabwereza kwa mayeso, tikukulimbikitsani kulemba mtundu wa injini, momwe imayendetsera, njira yoyikira, katundu, malo a accelerometer, mzere woyezera, kuchuluka kwa ma frequency, ndi nthawi yoyesera pa muyeso uliwonse. Poyerekeza deta, mikhalidwe iyi iyenera kusungidwa mofanana momwe mungathere, ndipo mikhalidwe iliyonse yomwe singakhazikitsidwe iyenera kulembedwa bwino.
Kodi GRMS Ingakuuzeni Chiyani, Ndipo Ingakuuzeni Chiyani Yokha?
GRMS ikhoza kufotokoza mwachidule kuchuluka kwa kuthamanga kwa RMS pansi pa mikhalidwe yeniyeni yoyezera, koma mtengo umodzi sungafotokoze mokwanira chizindikiro cha kugwedezeka. Pa malo ogwedezeka mwachisawawa, GRMS yokha singawonetse ma frequency omwe mphamvu ya kugwedezeka imayikidwamo; kuwunika kwaukadaulo kungafunikenso kuwunikanso curve ya PSD, kuchuluka kwa ma frequency komwe kwatchulidwa, ndi nthawi yoyesera.
Mtengo umodzi wa GRMS sungasonyeze mwachindunji:
Mtengo wapamwamba kwambiri wa nthawi yomweyo pakugwedezeka mwachisawawa;
Kupereka kwa magulu osiyanasiyana a ma frequency ku yankho lonse;
Kumene kugwedezeka kwakukulu kumachitika mu kapangidwe ka chinthucho;
Kaya nthawi yogwira ntchito ya injiniyo kapena kudalirika kwake kukukwaniritsa zofunikira;
Kaya kugwedezeka komaliza kwa wogwiritsa ntchito kuli kolimba kapena komasuka.
Ngati mukuyang'ana kugwedezeka kwachisawawa komwe zida zimakumana nako, ma frequency spectrum ndi nthawi yoyesera ziyenera kuganiziridwa pamodzi. Ngati mukuyang'ana kutulutsa kwa injini, chitsanzo, drive, fixture, load, ndi measure axis ziyenera kuganiziridwa pamodzi. Mulimonsemo, chigamulo chonse sichiyenera kuperekedwa kutengera nambala imodzi ya GRMS yokha.
Kodi ndi chidziwitso chiti chomwe chiyenera kuperekedwa kwa wopanga akamayesa ma Micro Vibration Motors?
Poyesa zofunikira za injini kapena zitsanzo, gulu la mainjiniya liyenera kufotokoza chinthu choyezera, miyeso yeniyeni, ndi momwe zimagwiritsidwira ntchito. Izi zimathandiza LEADER kudziwa ngati polojekitiyi ikukhudzana ndi kugwedezeka kwa chilengedwe kwa chipangizocho kapena kutulutsa kwa injini, komanso kutsimikizira zofunikira zoyenera kapena mikhalidwe yowunikira zitsanzo.
Kukonzekera koyenera:
Mtundu wa chinthu ndi ntchito yogwiritsidwa ntchito;
Kaya kuwunikaku kukukhudza kugwedezeka kwa chilengedwe mwachisawawa kapena kutulutsa kwa injini;
Target Grms, G Peak, kapena zina zoyezera kugwedezeka;
Mafupipafupi ogwiritsidwa ntchito ndi zofunikira zina zoyesera;
Malo oikira injini, momwe imagwirira ntchito, njira yoikira, ndi kapangidwe ka chinthucho;
Voltage yomwe ilipo, dera loyendetsera, ndi ma frequency a drive a LRA (ngati alipo);
Choyesera, katundu, ndi malo a accelerometer (ngati khwekhwe loyesera lilipo kale);
Chitsanzo cha injini, kuchuluka kwa zitsanzo, ndi gawo la polojekiti zomwe ziyenera kuyesedwa.
Ngati mtengo wa chinthu chomwe mukufuna sichinadziwikebe, choyamba mutha kupereka kapangidwe ka chinthucho, momwe chimayendera, malipoti omwe alipo kale, kapena zitsanzo zoyeserera. LEADER ikhoza kutsimikiziranso magawo omwe alipo ndi zofunikira pakuwunika zitsanzo kutengera zolemba za mtundu winawake.
Fufuzani za Mtsogolerimayankho ang'onoang'ono amagetsi ogwedezeka or zosankha zamagalimoto zolunjika mwamakondapoyesa ma mota a zipangizo zamagetsi zazing'ono.
GRMS nthawi zambiri imatanthauza mtengo wapakati wa sikweya wofulumira womwe umafotokozedwa mu mayunitsi a g. Imafotokoza mulingo wa RMS wa chizindikiro chofulumira, ndipo tanthauzo lake lenileni liyenera kutsimikiziridwa mogwirizana ndi chinthu choyezera ndi mikhalidwe yoyesera.
GRMS nthawi zambiri imafotokozedwa ngati gRMS poyesa kufulumizitsa. 1g ndi pafupifupi yofanana ndi 9.81 m/s29.81 m/s2. Mu zolemba zaukadaulo, ingalembedwenso ngati gRMS, Grms, kapena GRMS.
Kodi GRMS ndi yofanana ndi G Peak? Ayi. GRMS ndi muzu wa mean square acceleration value, pomwe G Peak ndi muzu wa acceleration wa nthawi yomweyo womwe umachitika nthawi zonse. Ubale pakati pa ziwirizi umadalira mawonekedwe a mafunde a chizindikiro; kugwedezeka mwachisawawa sikungasinthidwe mwachindunji pogwiritsa ntchito njira yoyenera ya sine wave.
Sikoyenera. Ziyenera kutsimikiziridwa ngati choyezera, katundu, malo okwerera, momwe galimoto imayendera, ndi njira yoyezera ndi zofanana pa injini zonse ziwiri. Ngati mikhalidwe yoyezera ikusiyana, kuyerekeza ma Grms okha kungayambitse malingaliro olakwika.
Kodi ma Grms omwe ali mu datasheet ya mota angaimire mphamvu ya kugwedezeka komwe wogwiritsa ntchito amamva? Sangathe kuyimira izi palokha. Ma Grms omwe ali mu datasheet ndi mtengo woyesedwa pansi pa kukhazikitsidwa kwa mayeso enaake; kutumiza kwenikweni kwa kugwedezeka kumakhudzidwanso ndi nyumba, njira yoyikira, kuchuluka kwa chipangizocho, malo olumikizirana, ndi momwe galimoto imayendera, ndipo iyenera kutsimikiziridwa mu kapangidwe kake.
Mapeto
GRMS ndi muyeso wapakati pa sikweya wapakati pa liwiro, koma m'malo osiyanasiyana, ikhoza kufotokoza malo ogwedezeka mwachisawawa kapena kuyimira kutulutsa kwa mota yogwedezeka yoyesedwa pansi pa mikhalidwe inayake. Musanatanthauzire kapena kuyerekeza deta, chinthu choyezera, mayunitsi, kuchuluka kwa ma frequency, ndi mikhalidwe yoyesera ziyenera kutsimikiziridwa kaye.
Funsani Akatswiri Anu Atsogoleri
Timakuthandizani kupewa mavuto kuti mupereke khalidwe labwino komanso kuyamikira zosowa zanu za injini yaing'ono yopanda maburashi, panthawi yake komanso pa bajeti.
Nthawi yotumizira: Januwale-16-2025
