Vibration na mkpọtụ moto magnet na-adịgide adịgide
Ọmụmụ na mmetụta nke Stator Electromagnetic Force
A na-emetụta ụda electromagnetic nke stator n'ime moto ahụ site na ihe abụọ, ike mkpali electromagnetic na nzaghachi nhazi yana radieshon ụda nke sitere na ike mkpali kwekọrọ. Nyochaa nyocha.
Prọfesọ ZQZhu nke Mahadum Sheffield, UK, wdg jiri usoro nyocha wee mụọ ike elektrọnịk na mkpọtụ nke stator magnet na-adịgide adịgide, ihe ọmụmụ ihe gbasara ike elektrọnịk nke moto na-adịgide adịgide magnet brushless, na ịma jijiji nke na-adịgide adịgide. magnet brushless DC moto nwere ogwe 10 na oghere 9. A na-amụ mkpọtụ ahụ, a na-enyocha mmekọrịta dị n'etiti ike electromagnetic na obosara eze stator, na mmekọrịta dị n'etiti torque ripple na njikarịcha nsonaazụ nke vibration na mkpọtụ na-enyocha.Prọfesọ Tang Renyuan na Song Zhihuan sitere na Mahadum Teknụzụ Shenyang nyere usoro nyocha zuru oke iji mụọ ike elektrọnịkị na ihe jikọrọ ya na moto magnet na-adịgide adịgide, bụ nke nyere nkwado usoro mmụta maka nyocha ọzọ na nkwupụta mkpọtụ nke moto magnet na-adịgide adịgide.A na-enyocha isi iyi mkpọtụ electromagnetic gburugburu moto synchronous magnet na-adịgide adịgide na-akwado site na sine ife na ntụgharị ugboro ugboro, njirimara ugboro nke oghere magnetik, ike electromagnetic nkịtị na mkpọtụ mkpọtụ a na-amụ, yana ihe kpatara mgbagharị ahụ. A na-enyocha ripple. A na-eme ka pulsation torque ahụ wee gosipụta ya na nnwale site na iji Element, yana pulsation torque n'okpuru ọnọdụ oghere dị iche iche dabara adaba, yana mmetụta nke ogologo oghere ikuku, ọnụọgụ okporo ụzọ, akụkụ chamfered, na obosara oghere na pulsation torque tụlere. .Igwe ọkụ radial electromagnetic na ụdị ike tangential, na ụdị simulation nke kwekọrọ na ya, a na-enyocha ike electromagnetic na nzaghachi mkpọtụ mkpọtụ na ngalaba ugboro ma nyochaa ụdị radieshon acoustic, na-eme nyocha kwekọrọ na nyocha nnwale. A na-egosi na isi ụdịdị nke stator magnet na-adịgide adịgide na-egosi na ọnụ ọgụgụ ahụ.
Ụdị isi nke moto magnet na-adịgide adịgide
Nkà na ụzụ na-ebuli usoro ahụ motoIsi ihe ndọta dị na moto na-abanye na oghere ikuku nke ukwuu, ma na-ebute ike radial na stator na rotor, na-eme ka mkpọtụ electromagnetic na mkpọtụ.N'otu oge ahụ, ọ na-emepụta oge tangential na ike axial, na-eme ka ụda olu na-egbuke egbuke na axial vibration.N'ọtụtụ oge, dị ka moto asymmetric ma ọ bụ moto otu oge, ụda tangential a na-emepụta dị nnọọ ukwuu, ọ dịkwa mfe ime ka resonance nke ihe ejikọrọ na moto ahụ, na-eme ka mkpọtụ na-egbuke egbuke.Iji gbakọọ ụda electromagnetic, na iji nyochaa ma chịkwaa ụda ndị a, ọ dị mkpa ịmata ebe ha si, nke bụ ike nke na-emepụta vibration na mkpọtụ.N'ihi nke a, a na-eme nyocha nke ebili mmiri electromagnetic site na nyocha nke oghere magnetik ikuku.Na-eche na ike ndọta njupụta njupụta ikuku nke stator mepụtara bụ, yana ebili mmiri magnetik flux.emepụtara site rotor bụ, mgbe ahụ ha mejupụtara magnetik flux njupụta ifegharị na ikuku ọdịiche nwere ike igosipụta dị ka ndị a:
Ihe ndị dị ka stator na rotor slotting, winding nkesa, ntinye nke ugbu a waveform distortion, ikuku-ohere permeance fluctuation, rotor eccentricity, na otu enweghị itule nwere ike niile na-eduga n'ibu deformation na mgbe ahụ ịma jijiji. Nkwekọrịta oghere, oge nkwekọ, oghere harmonics, eccentricity harmonics na saturation magnetik nke ike magnetomotive niile na-emepụta nkwekọ dị elu nke ike na torque. Karịsịa radial force wave na AC moto, ọ ga-eme ihe na stator na rotor nke moto ahụ n'otu oge ma mepụta mgbagwoju anya magnetik.Ihe owuwu stator-frame na rotor-casing bụ isi iyi radieshon nke mkpọtụ moto.Ọ bụrụ na ike radial dị nso ma ọ bụ hà nhata n'okike nke usoro stator-base, resonance ga-eme, nke ga-eme ka nrụrụ nke moto stator usoro ma mepụta vibration na ụda ụda.Ọtụtụ mgbe,mkpọtụ magnetostrictive kpatara site na obere ugboro 2f, ike radial dị elu bụ nke a na-apụghị ịgbagha agbagha (f bụ isi ugboro nke moto, p bụ ọnụ ọgụgụ nke okporo ụzọ moto). Otú ọ dị, ike radial nke magnetostriction na-ebute nwere ike iru ihe dịka 50% nke ike radial nke oghere magnetik na-ebute.N'ihi na a moto nke onye inverter chụpụrụ, n'ihi ịdị adị nke elu-usoro oge harmonics na ugbu a nke stator windings, oge harmonics ga-n'ịwa ọzọ pulsating torque, nke na-abụkarị ibu karịa pulsating torque eme site harmonics ohere. nnukwu.Tụkwasị na nke ahụ, a na-ebufekwa voltaji nke na-emepụta ihe na-emepụta ihe na-eme ka ọ bụrụ ihe ntụgharị site na sekit dị n'etiti, na-eme ka ụdị ihe ọzọ na-emegharị anya.N'ihe gbasara mkpọtụ electromagnetic nke moto synchronous magnet na-adịgide adịgide, ike Maxwell na ike magnetostrictive bụ isi ihe na-ebute mkpọtụ na mkpọtụ moto.
Njirimara ịma jijiji stator motoMkpọtụ electromagnetic nke moto abụghị naanị ihe metụtara ugboro, usoro na njupụta nke ike ikuku nke ikuku magnetik na-emepụta, kamakwa ọ metụtara ụdị okike nke usoro moto ahụ.A na-ebute mkpọtụ eletrọnịkị site na ịma jijiji nke stator moto na casing.Ya mere, ịkọ ogologo oge nke stator site na usoro usoro ma ọ bụ simulations tupu oge eruo, na ịma jijiji ugboro ugboro na ike ikuku nke stator, bụ ụzọ dị irè iji belata mkpọtụ electromagnetic.Mgbe ugboro nke radial ike ebili mmiri nke moto hà nhata ma ọ bụ nso na eke ugboro nke ụfọdụ usoro nke stator, resonance ga-mere.N'oge a, ọbụna ma ọ bụrụ na njupụta nke radial ike ife adịghị nnukwu, ọ ga-eme ka a nnukwu vibration nke stator, si otú na-amụ a nnukwu electromagnetic mkpọtụ.Maka mkpọtụ moto, ihe kachasị mkpa bụ ịmụ usoro okike na radial vibration dị ka isi, usoro axial bụ efu, na ọdịdị oghere dị n'okpuru usoro nke isii, dị ka egosiri na ọnụ ọgụgụ ahụ.
Ụdị ịma jijiji Stator
Mgbe ị na-enyocha njirimara ịma jijiji nke moto, n'ihi oke mmetụta nke damping na ọdịdị ọnọdụ na ugboro nke stator moto, enwere ike ileghara ya anya.Ntugharị ihe nrụzi bụ mbelata ọkwa ịma jijiji n'akụkụ ugboro ugboro site n'itinye usoro mgbasa ike dị elu, dịka egosiri, a na-atụle ya naanị ma ọ bụ nso ugboro ugboro.
mmetụta damping
Mgbe agbakwunyere windings na stator, a na-emeso elu nke windings na oghere ígwè isi na varnish, akwụkwọ mkpuchi mkpuchi, varnish na waya ọla kọpa na-ejikọta ibe ya, na akwụkwọ mkpuchi na oghere na-ejikọta ya na ezé ezé. nke isi ígwè.Ya mere, ikuku n'ime oghere nwere ụfọdụ ntinye aka siri ike na isi ígwè na enweghị ike ịgwọ ya dị ka ihe mgbakwunye ọzọ.Mgbe a na-eji usoro mmecha njedebe eme ihe maka nyocha, ọ dị mkpa ịnweta paramita ndị na-akọwapụta ihe dị iche iche na-arụ ọrụ dịka ihe nke windings na cogging si dị.N'oge mmejuputa usoro a, gbalịa hụ na agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba agba na igwe igwe na igwe nke igwe. resonance, belata njupụta nke ịma jijiji, ma belata ebili mmiri electromagnetic. mkpọtụ.Ugboro okike nke stator mgbe etinyere ya na casing dị iche na nke otu stator core. The casing nwere ike budata mma siri ike ugboro nke stator Ọdịdị, karịsịa ala-usoro siri ike ugboro. Mmụba nke ngbanwe ọsọ n'ịrụ ọrụ na-abawanye ihe isi ike nke ịzere resonance na imepụta moto.Mgbe ị na-emepụta moto ahụ, ekwesịrị ibelata mgbagwoju anya nke ihe owuwu shei, yana enwere ike ịbawanye ugboro nke ihe owuwu moto ahụ site n'ịbawanye ọkpụrụkpụ nke shei ahụ nke ọma iji zere ndapụta nke resonance.Na mgbakwunye, ọ dị ezigbo mkpa iji ezi uche mee ka mmekọrịta kọntaktị dị n'etiti stator core na casing mgbe ị na-eji ihe nleba anya.
Electromagnetic Analysis nke MotorsDị ka ihe dị mkpa na-egosi nhazi electromagnetic nke moto, njupụta magnetik nwere ike na-egosipụtakarị ọnọdụ ọrụ nke moto ahụ.Ya mere, anyị na-ebu ụzọ wepụ ma lelee uru njupụta magnetik, nke mbụ bụ iji nyochaa izi ezi nke ịme anwansị ahụ, nke abụọ bụ inye ihe ndabere maka mmịpụta nke ike electromagnetic na-esote.E gosipụtara eserese igwe ojii magnetik njupụta moto ewepụtara na foto a.
Enwere ike ịhụ site na map ígwé ojii na njupụta magnetik dị n'ọnọdụ nke àkwà mmiri dịpụrụ adịpụ dị elu karịa ihe ntụgharị nke BH curve nke stator na rotor core, nke nwere ike ịme mmetụta dịpụrụ adịpụ magnet.
Ọkpụkpụ njupụta ikuku ikukuWepụ ihe ndọta magnetik nke oghere ikuku moto na nha nha nha, dọpụta akụkụ, ma ị nwere ike ịhụ ụkpụrụ akọwapụtara nke oghere ikuku magnetik na nha nha nha nha. Ngwunye magnetik nke eze bụ ebe dị anya site na nkwụsịtụ nke ihe ahụ, nke a na-eche na ọ bụ n'ihi nnukwu ígwè dị elu mgbe e mere moto na nnukwu ọsọ.
Nyocha ModalDabere na ụdị ihe owuwu moto na grid, kọwapụta ihe ahụ, kọwapụta stator core dị ka nchara nchara, ma kọwaa casing dị ka ihe aluminom, na-eduzi nyocha modal na moto n'ozuzu ya.The n'ozuzu mode nke moto na-enwetara dị ka e gosiri na ọnụ ọgụgụ n'okpuru.
mbụ-atụ mode udi
ụdị usoro nke abụọ
Ụdị usoro nke atọ
Nyocha mkpọtụ motoA na-enyocha nzaghachi kwekọrọ na moto ahụ, a na-egosipụtakwa nsonaazụ nke ngwa ngwa vibration na ọsọ dị iche iche na foto dị n'okpuru.