- Zeziphi iiyunithi zokubala zexabiso lemotor vibration? Uziqonda njani ezi yunithi?
Iiyunithi zokulinganisa ezisetyenziswa ngokuqhelekileyo zexabiso le-motor vibration lixabiso elisebenzayo lesantya (ekubhekiswa kulo njengesantya), ixabiso le-vibration amplitude (ekubhekiswa kuyo njenge-amplitude, yahlulwe ibe yi-amplitude enye kunye ne-double amplitude) kunye nokukhawuleza kwe-vibration. Eyokuqala isetyenziswa ngakumbi.
"Ixabiso elisebenzayo ngesantya" linokuqondwa ngokulula njengomgama oshukunyiswa yimathiriyeli eshukumayo (enokuthi ithathwe njengenqaku) ngexesha leyunithi. W ngumgama onokuthi ushukume ujiwuze uye phambili kwindawo enye kwaye ungashukumi uye kwezinye iindawo. Ngoko ke, into ebizwa ngokuba "ngumgama ohanjisiweyo" ingaba yindlela yokuchaza kuphela, ngoko ke amagama "esebenzayo" okanye "elinganayo" asetyenziselwa ukucacisa ngakumbi. Inokucinga ukuba ixabiso lesantya sokungcangcazela linxulumene nomgama we-vibration amplitude (umgama ukusuka kwindawo ephakathi) yendawo yokungcangcazela. Ukongeza, inxulumene ne-frequency vibration (inani leejingi ngasemva naphambili ngexesha leyunithi) kwaye ziyalingana; ngokubanzi mm/s isetyenziswa njengeyunithi.
Inqaku lokungcangcazela lisuntswana elijikeleza ngasemva naphambili kumacala amabini. Xa ujingi, umgama omkhulu ukusuka kwindawo ephakathi ubizwa ngokuba yi-amplitude. Umgama ophezulu kwicala elinye ubizwa ngokuba yi-amplitude enye, kwaye umgama phakathi kweendawo ezikude kakhulu kumacala amabini ubizwa ngokuba yi-double amplitude - ngokuqhelekileyo kwi-mm okanye i-μm.
Isantya sokungcangcazela kukwanda kwesantya kwiyunithi yeyunithi M, ngokuqhelekileyo kwi-m/s2.
- Ngawaphi amaxabiso amabini exabiso elisebenzayo lesantya kunye ne-amplitude yexabiso lokungcangcazela kungcono? Ngaba kukho ubudlelwane bokuguqula phakathi kwabo?
Njengoko kukhankanyiwe ngasentla, ixabiso amplitude ibonisa kuphela ubukhulu ujingi amplitude, lo gama isantya ixabiso elisebenzayo libonisa zombini ubungakanani ujingi amplitude kunye nesantya ujingi. Iqondo lomonakalo obangelwe kukungcangcazela kwimoto ngokwayo kunye nezixhobo ezinxulumeneyo zinxulumene ne-amplitude kunye ne-frequency (isantya sojingi). Ke ngoko, kunenjongo ngakumbi kwaye kubaluleke ngakumbi ukusebenzisa isantya sokungcangcazela ukuvavanya ubungakanani bexabiso lokungcangcazela kwemoto. Esi sisizathu sokuba kutheni ixabiso elisebenzayo lesantya lisetyenziswa ngokubanzi njengexabiso lomlinganiselo wokungcangcazela kwimigangatho efanelekileyo yamazwe ngamazwe neyasekhaya.
Ngenxa yokuba iimeko zokuvelisa izixa ezibini zesantya kunye ne-amplitude azifani ncam, isantya sine-vibration frequency enye kune-amplitude. Kubaleka injini yokwazisa,i-vibration frequency ayinye, kwaye ngamanye amaxesha iyantsonkotha kakhulu, kunye nee-frequencies eziphezulu eziveliswa yi-electo-magnetics kunye ne-medium and low frequencies eveliswa ngoomatshini.
Ke ngoko, akukho budlelwane buzinzileyo boguqulo phakathi kwezi zibini, kodwa ngokuqhelekileyo, xa i-amplitude inkulu, isantya sokungcangcazela siya kwanda ngokufanelekileyo.
- Izizathu ezinokwenzeka zokungcangcazela okukhulu kwemoto:
(1) Iibheringi ezithengiweyo zikumgangatho ophantsi kwaye azihambelani nemigangatho yomgangatho. Indibano ayiqhutywa ngokweemfuno zenkqubo, ibangela i-deformation ngenxa yempembelelo. Ukunyamezela kwegumbi lokuthwala i-motor end cover akunangqiqo, kunzima kakhulu okanye kukhululekile. Ngeli xesha, eyona ndlela ilula kukusebenzisa isando ukunkqonkqoza ngobunono ecaleni kwe-axis ukubona ukuba kukho uphuculo.
(2) Ngenxa yokumisa okuphezulu kwesigqubuthelo sokuthwala okanye umthombo wamaza unzima kakhulu, iibheringi kuzo zombini iziphelo zibambekile. Ngeli xesha, i vibration yeInqanaba lesithathu lenjini ye-asynchronousihlala iphezulu, kwaye isandi esithi "buzzing" sisoloko sikhutshwa.
(3) Ibhalansi eguquguqukayo ye-rotor ayichanekanga, kwaye ukuchaneka akwanele.
(4) I-gap yomoya phakathi kwe-stator kunye ne-rotor ayilingani, kwaye kukho isiganeko sokutshatyalaliswa kwendawo.
(5) I-rotor yaphukile, kwaye umsinga womthwalo uya kugungxula ngexesha elithile.
(6) Iinjini yombaneunyawo alulingani, okanye alufakwanga ngokuqwalasela kunye nezixhobo zomthwalo.