CAJ | 학술논문

精确计算永磁同步电主轴定子的模态，对于预测永磁同步电主轴的振动和噪声是至关重要的。文章用解析法和有限元法分别计算了永磁同步电主轴定子周向模态和轴向模态。并分析了端盖、温升对永磁同步电主轴定子的固有频率的影响。研究表明：端盖对定子的约束使低阶模态提升较多，而对高阶模态影响很小；电主轴工作过程中的温升会造成模态频率的略微下降。分析了电主轴定子轴向模态的相对声强系数对电主轴噪声计算的影响，并与实验数据进行了对比，验证了计算结果的实用性。
정학계산영자동보전주축정자적모태，대우예측영자동보전주축적진동화조성시지관중요적。문장용해석법화유한원법분별계산료영자동보전주축정자주향모태화축향모태。병분석료단개、온승대영자동보전주축정자적고유빈솔적영향。연구표명：단개대정자적약속사저계모태제승교다，이대고계모태영향흔소；전주축공작과정중적온승회조성모태빈솔적략미하강。분석료전주축정자축향모태적상대성강계수대전주축조성계산적영향，병여실험수거진행료대비，험증료계산결과적실용성。
Accurate calculation of the stator frequencies of the permanent magnet synchronous motor spindle ( PMSMS) is essential to the prediction of acoustic noise and vibration of PMSMS. This paper presents deter-mination of circumference and axial mode of stator of ( PMSMS) by both finite element method and analyti-cal method. The influence of the end cover and the temperature rise onthe natural frequency is investigated. The study shows that the end cover of the stator has a great influence on low modes and a little impact on higher modes. The temperature rise causes the natural frequency of the stator decline slightly. The influence of the relatively sound intensity coefficient with the consideration of the axial modal on PMSMS noise is ana-lyzed. The predict results are compared with experimental data and the practicality is verified.