Lub suab nrov ntawm lub tshuab hluav taws xob tuaj yeem muab faib ua peb pawg: aerodynamic, mechanical thiab electromagnetic nrov qhov chaw. Nyob rau hauv xyoo tas los no, tib neeg tau them nyiaj ntau thiab ntau dua rau qhov cuam tshuam ntawm cov khoom siv hluav taws xob hluav taws xob. Qhov no yog vim yog ob qho laj thawj: (a) rau cov motors me thiab nruab nrab, tshwj xeeb tshaj yog cov motors qis dua 1.5kW, electromagnetic nrov dominates acoustic teb; (b) hom suab nrov no feem ntau yog vim qhov nyuaj ntawm kev hloov cov khoom sib nqus ntawm lub cev muaj zog thaum nws tsim.
Hauv cov kev tshawb fawb yav dhau los, qhov cuam tshuam ntawm ntau yam ntawm lub suab nrov ntawm lub cev muaj zog tau tshawb pom dav dav, xws li cov nyhuv ntawm pulse width modulation tam sim no ntawm lub suab nrov ntawm tus cwj pwm ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog; cov nyhuv ntawm windings, thav duab thiab impregnation ntawm stator resonant zaus; cov nyhuv ntawm cov tub ntxhais clamping siab, windings, wedges, cov hniav zoo li, kub, thiab lwm yam ntawm kev co cwj pwm ntawm stator ntawm ntau hom motors.
Txawm li cas los xij, nyob rau hauv cov nqe lus ntawm stator core laminations, qhov cuam tshuam ntawm kev co tus cwj pwm ntawm lub cev muaj zog tsis tau kawm tag nrho, txawm hais tias nws paub tias qhov clamping ntawm lub laminations tuaj yeem ua rau muaj qhov nruj ntawm cov tub ntxhais thiab txawm tias qee zaum lawv tuaj yeem ua raws li cov kev cai ntawm stator core laminations. ib tug shock absorber. Cov kev tshawb fawb feem ntau ua qauv ntawm cov tub ntxhais stator ua cov tuab tuab thiab cov cylindrical core kom txo cov qauv kev nyuaj thiab kev suav lub nra.
McGill University tus kws tshawb fawb Issah Ibrahim thiab nws pab neeg tau kawm txog qhov cuam tshuam ntawm laminated thiab non-laminated stator cores ntawm lub suab nrov ntawm lub cev muaj zog los ntawm kev tshuaj xyuas ntau cov qauv ntawm lub cev muaj zog. Lawv tsim CAD qauv raws li qhov ntsuas geometric qhov ntev thiab cov khoom siv ntawm lub cev muaj zog, nrog rau cov qauv siv yog 4-ncej, 12-slot sab hauv ruaj khov hlau nplaum synchronous lub cev muaj zog (IPMSM). Kev ua qauv ntawm laminated stator core tau ua tiav siv Laminated Model Toolbox hauv Simcenter 3D, uas tau teeb tsa raws li cov chaw tsim khoom tshwj xeeb, suav nrog cov tsis muaj xws li damping coefficient, lamination method, interlayer allowance, thiab shear and normal stress of adhesive. Txhawm rau ntsuas cov suab nrov nrov ntawm lub cev muaj zog, lawv tau tsim cov qauv acoustic zoo uas tso cai rau kev sib txuas ntawm stator thiab cov kua dej, ua qauv rau cov kua dej acoustic nyob ib ncig ntawm cov qauv stator uas twb muaj lawm los txheeb xyuas qhov chaw acoustic nyob ib ncig ntawm IPM lub cev muaj zog.
Cov kws tshawb fawb tau pom tias cov qauv kev co ntawm lub laminated stator core muaj qis resonant zaus txheeb ze rau cov tsis-laminated stator core ntawm tib lub cev muaj zog geometry; txawm tias nquag resonances thaum lub sij hawm ua hauj lwm, lub suab siab theem ntawm laminated stator core motor tsim tau qis dua qhov xav tau; Qhov sib txheeb coefficient tus nqi siab tshaj 0.9 qhia tau hais tias tus nqi suav ntawm kev ua qauv laminated stator rau acoustic kev tshawb fawb tuaj yeem raug txo los ntawm kev cia siab rau tus qauv surrogate kom raug kwv yees lub suab siab ntawm qhov sib npaug ntawm cov khoom stator core.
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