ʻO ke kumumanaʻo hana a me ka hoʻokaʻawale ʻana o nā bearings magnetic

 

Ka hali ʻumekeHiki ke hoʻokaʻawale ʻia nā ʻōnaehana i ʻekolu mau māhele e like me kā lākou mau loina hana: Active Magnetic Bearing, Passive Magnetic Bearing, a me Hybrid Magnetic Bearing.

 

ʻO ka hali magnetic hana

 

Hoʻohana nā bearings magnetic ikaika i ka mana electromagnetic hiki ke hoʻokele ʻia e hoʻokuʻu i ke koʻokoʻo wili, ka mea nui i haku ʻia me nā rotors, solenoids, sensors, controllers, a me nā amplifiers mana. Hoʻopaʻa ʻia nā solenoids ma luna o kahi stator i kau ʻia i loko o kahi kahua magnetic i hana ʻia e nā electromagnets i kau ʻia ma ka symmetry radial, kēlā me kēia me hoʻokahi a ʻoi aku paha nā sensors e nānā mau i nā loli i ke kūlana o ke koʻokoʻo. ʻO ka hōʻailona i hoʻopuka ʻia mai ka sensor, me ke kōkua o ka ʻōnaehana hoʻokele uila, e hoʻoponopono i ke au ma o ka electromagnet, i mea e kāohi ai i ka huki ʻana o ka electromagnet, i holo ai ke koʻokoʻo wili i kahi kūlana paʻa a kaulike, a hoʻokō i kekahi mau koi pololei.

 

Hiki ke hoʻokaʻawale ʻia nā bearings magnetic ikaika i ka mana o kēia manawa a me ka mana voltage e like me nā ʻano kaohi like ʻole, a hiki ke hoʻokaʻawale ʻia i nā bearings magnetic radial a me nā bearings magnetic axial e like me nā ʻano kākoʻo like ʻole. I kēia manawa, ma waena o nā bearings magnetic ikaika, ʻo ka mea i hoʻohana nui ʻia ʻo ia ka bearing magnetic i kāohi ʻia e DC.

 

ʻO ka ʻāpana mechanical o ka bearing magnetic ikaika i haku ʻia me kahi bearing radial a me kahi bearing axial, a ʻo ka bearing radial i haku ʻia me kahi stator (electromagnet) a me kahi rotor; ʻO nā bearings Axial i haku ʻia me kahi stator (electromagnet) a me kahi pā thrust.

 

Ma muli o ka loaʻa ʻana o nā pono o ke kūlana rotor o ka bearing magnetic ikaika, hiki ke hoʻoholo ʻia ka paʻakikī o ka bearing a me ka damping e ka ʻōnaehana kaohi, ʻo ia ka mea i hoʻohana nui ʻia ma ke kahua o ka levitation magnetic, a ʻo ka noiʻi ʻana o ka bearing magnetic ikaika ke kumu o ka noiʻi ʻenehana levitation magnetic. Ma hope o nā makahiki o ka hana nui, ua lilo kāna kumumanaʻo hoʻolālā a me nā ʻano hana i mea oʻo aʻe.

 

Ka hali ʻumeke passive

 

Ma ke ʻano he ʻano o ka bearing magnetic, loaʻa i ka bearing magnetic passive kona mau pono kūikawā, he liʻiliʻi kona nui, ʻaʻohe hoʻohana mana, a maʻalahi hoʻi ke ʻano. ʻO ka ʻokoʻa nui ma waena o nā bearings magnetic passive a me nā bearings magnetic hana, ʻo ia ka mea mua ʻaʻohe ʻōnaehana hoʻokele uila hana, akā hoʻohana i nā ʻano o ke kahua magnetic ponoʻī e hoʻokuʻu i ke koʻokoʻo wili. I kēia manawa, ʻo nā bearings magnetic passive i hoʻohana nui ʻia he mau bearings magnet mau loa i haku ʻia me nā magnet mau loa. Hiki ke hoʻokaʻawale ʻia nā bearings magnet mau loa i ʻelua ʻano: ke ʻano repulsion a me ke ʻano omo.

 

Hiki ke hoʻohana ʻia nā bearings magnet paʻa passive ma ke ʻano he bearings radial a me nā bearings thrust (axial bearings), hiki i nā mea ʻelua ke omo a repulsion paha. Ma muli o ke kuhikuhi magnetization a me ke kūlana pili o ke apo magnetic, loaʻa i nā bearings magnet paʻa nā ʻano hana kaapuni magnetic like ʻole. Akā aia ʻelua mau ʻano hana kumu

 

ʻO ke ʻano ʻē aʻe o ka bearing magnetic passive e pili ana i ka ikaika omo, ka mea e hana ma waena o nā ʻāpana magnetic palupalu magnetized. Ke neʻe ka ʻāpana rotor radially, loaʻa ka hopena omo mai ka loli o ka magnetoresistance, no laila ua kapa ʻia hoʻi he "magnetoresistive bearing". Hiki ke hoʻolālā ʻia kēia ʻano bearing i ʻole e wili ka ʻāpana magnet mau loa, a ʻo ka ʻāpana hao palupalu wale nō e wili, i ʻoi aku ka maikaʻi o ke kūpaʻa o ka ʻōnaehana.

 

ʻO ka hui pū ʻana o nā hopena hoʻopaʻa o nā bearings reluctance a me nā solenoids hana e hopena i kahi ʻōnaehana bearing magnetic me ka hoʻohana ʻana i ka ikehu liʻiliʻi.

 

Nā bearings magnetic hybrid

 

Hoʻokumu ʻia nā bearings magnetic hybrid ma ke kumu o nā bearings magnetic hana, nā bearings magnetic passive a me kekahi mau kākoʻo kōkua a me nā ʻano hoʻopaʻa - kahi ʻano ʻōnaehana bearings magnetic i hui pū ʻia. Noʻonoʻo ia i nā ʻano piha o nā bearings magnetic hana a me nā bearings magnetic passive.

 

ʻO ka bearing magnetic hybrid ka hoʻohana ʻana i ke kahua magnetic i hana ʻia e ka magnet mau loa e pani i ke kahua magnetic bias static o ka electromagnet, ʻaʻole hiki ke hōʻemi nui i ka hoʻohana ʻana i ka mana o ka amplifier mana, akā e hōʻemi pū i ka helu o nā huli ampere o ka electromagnet ma ka hapalua, e hoʻemi i ka nui o ka bearing magnetic, a hoʻomaikaʻi i ka hiki ke lawe ukana.

 

Ma muli o ka hoʻokumu ʻia ʻana o kahi kahua magnetic bias e kahi magnet mau a ua hoʻokumu ʻia kahi kahua magnetic i kāohi ʻia e ka electromagnet, loaʻa i nā bearings magnetic hybrid offset magnet mau nā pono penei:

 

1) Hoʻohana ʻia ka magnet mau loa e hāʻawi i ke kahua magnetic static bias, a hāʻawi wale ka electromagnet i ke kahua magnetic control no ke kaulike ʻana i ka ukana a i ʻole ka hoʻopilikia waho, hiki ke pale aku i ka nalowale o ka mana i hoʻokumu ʻia e ke au bias o ka ʻōnaehana a hōʻemi i ka hoʻomehana ʻana o ka coil.

 

2) ʻOi aku ka liʻiliʻi o ka nui o nā huli e pono ai no ka electromagnet o ka bearing magnetic hybrid ma mua o ka bearing magnetic hana, kahi mea e kōkua ai i ka hōʻemi ʻana i ka nui o ka bearing magnetic a me ka mālama ʻana i nā mea. Loaʻa i kēia ʻano bearing nā pono o ka liʻiliʻi, ke kaumaha māmā a me ka hana kiʻekiʻe, a kūpono no ka miniaturization a me nā noi liʻiliʻi.