Hiki ke hoʻokaʻawale ʻia ka walaʻau o nā kaʻa uila i ʻekolu mau ʻāpana: aerodynamic, mechanical and electromagnetic noise source. I nā makahiki i hala iho nei, ua uku nui ka poʻe i ka hopena o nā kumu leo electromagnetic. ʻO kēia ma muli o nā kumu ʻelua: (a) no nā kaʻa liʻiliʻi a me ka liʻiliʻi, ʻoi aku ka nui o nā motika i helu ʻia ma lalo o 1.5kW, ʻoi aku ka leo electromagnetic i ke kahua acoustic; (b) ʻo kēia ʻano walaʻau ma muli o ka paʻakikī o ka hoʻololi ʻana i nā waiwai magnetic o ke kaʻa i ka wā i hana ʻia ai.
Ma nā haʻawina mua, ua ʻimi nui ʻia ka hopena o nā mea like ʻole i ka walaʻau kaʻa, e like me ka hopena o ka pulse width modulation current ma ke ʻano o ka walaʻau acoustic o nā kaʻa kaʻa paʻa mau loa; ka hopena o nā wiliwili, nā papa a me ka impregnation ma ka stator resonant frequency; ka hopena o ke kaomi ʻana o ke kumu, nā wiliwili, nā wedges, ke ʻano o ka niho, ka mahana, a me nā mea ʻē aʻe ma ke ʻano haʻalulu o ka stator o nā ʻano kaʻa like ʻole.
Eia nō naʻe, ma ke ʻano o ka stator core laminations, ʻaʻole i aʻo piha ʻia ka hopena i ka ʻano vibration o ka kaʻa, ʻoiai ua ʻike ʻia ʻo ka hoʻopaʻa ʻana i nā laminations hiki ke hoʻonui i ka ʻoʻoleʻa o ke kumu a hiki i kekahi mau manawa ke hana like lākou. he mea hoopau haalulu. Hoʻohālike ka hapa nui o nā haʻawina i ke kumu stator ma ke ʻano he kumu cylindrical mānoanoa a kūlike e hōʻemi i ka paʻakikī o ka hoʻohālikelike ʻana a me ke kaumaha helu.
Ua aʻo ka mea noiʻi ʻo McGill University ʻo Issah Ibrahim a me kāna hui i ka hopena o nā cores stator laminated a me ka non-laminated i ka walaʻau kaʻa ma ka nānā ʻana i ka nui o nā laʻana kaʻa. Ua kūkulu lākou i nā hiʻohiʻona CAD e pili ana i nā ana geometric i ana ʻia a me nā waiwai waiwai o ka kaʻa maoli, me ke kumu hoʻohālike he 4-pole, 12-slot interior permanent magnet synchronous motor (IPMSM). Ua hoʻopau ʻia ke ʻano hoʻohālike o ka laminated stator core me ka hoʻohana ʻana i ka Laminated Model Toolbox ma Simcenter 3D, i hoʻonohonoho ʻia e like me nā kikoʻī o ka mea hana, me nā ʻāpana e like me ka coefficient damping, lamination method, interlayer allowance, a me ka shear a me ke koʻikoʻi maʻamau o ka mea hoʻopili. I mea e loiloi pono ai i ka leo acoustic i hoʻopuka ʻia e ke kaʻa, ua hoʻomohala lākou i kahi kumu hoʻohālike acoustic e hiki ai ke hoʻohui ʻia ma waena o ka stator a me ka wai, e hoʻohālike ana i ka wai acoustic a puni ka hale stator e kū nei e kālailai i ke kahua acoustic a puni ka kaʻa IPM.
Ua ʻike ka poʻe noiʻi he haʻahaʻa haʻahaʻa nā alapine resonant i nā ʻano haʻalulu o ka core stator laminated e pili ana i ka core stator non-laminated o ka geometry motor like; ʻoiai ke kani pinepine ʻana i ka wā o ka hana ʻana, ʻoi aku ka haʻahaʻa o ke kiʻekiʻe o ke kaomi kani o ka hoʻolālā kaʻa kaʻa laminated stator core ma mua o ka mea i manaʻo ʻia; ʻO ke kumu hoʻohālikelike hoʻohui i ʻoi aku ma mua o 0.9 e hōʻike ana e hiki ke hōʻemi ʻia ke kumukūʻai helu o ka hoʻohālikelike ʻana i nā stator laminated no nā haʻawina acoustic ma o ka hilinaʻi ʻana i kahi kumu hoʻohālike e hoʻohālikelike pono i ke kiʻekiʻe o ke kaomi kani o ke kumu stator paʻa like.
kaʻa uila uila haʻahaʻa,Ex motor, Nā mea hana kaʻa ma Kina,ʻekolu ʻāpana induction motor, YES engine