车载永磁同步电机转子磁钢应力分析

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中图分类号：TP39；TM351 文献标识码：A 文章编号：2096-4706（2026）06-0031-05

Stress Analysis of Rotor Magnetic Steel for Vehicle-mounted Permanent Magnet Synchronous Motor

ZHAO Yang，CHENChuangye，ZHOUJianxin （1.Unit 69225，Bazhou 841300，China;2.Unit69224，Aksu 842000，China）

Abstract： Permanent magnet synchronous motors are widely used in armored equipment. Due to the special application environmentofarmoredequipment，the motorsaresubjectedtostrongvibrationand impactduringoperation，whichmaycause damageorevenfracturetotesiliconsteelsheetsofthemotorrotormagneticsteel.EspeciallyfortheInteriorPermanentMagnet Synchronous Motor （IPMsM）with high electromagneticperformance，itsrotorcoreisusuallyprovided with slotsofvarious shapes，whichhasaparticularlysignificant impactonthestressdistributionoftherotor.Thestressdistributionothesurfaceof therotormagneticsteelisdifcult toanalyze，anditishardtooptimizethestressoftherotormagneticsteeduringthedesign process.To solve this problem，this paper takes therotor magneticstel of avehicle-mounted IPMSMastheresearchobject， establishes itsequivalent magneticcircuit model，derives teanalyticalexpressionsofthe airgapunbalancedeletromagetic forceandthecentrifugalforceduringrotorotationprocessanalyzesthestressdistributionunderdifferentrotatingspedsbased on the motor finite element model，and provides ideas for the optimal design of motor stress.

Keywords： Finite Element Analysis （FEA）; IPMSM; analytical calculation; stress analysis

0 引言

永磁同步电机（PermanentMagnetSynchronousMotor，PMSM）因其优越的电磁性能和控制效果，在装甲装备中得到了广泛的应用。（剩余6772字）