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某新能源车用永磁同步电机啸叫优化
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作者 张镇 卢若皓 +1 位作者 蒋伟 陈炜然 《汽车电器》 2024年第11期71-74,共4页
针对纯电动汽车在25~50km/h车速时出现48阶啸叫问题,文章通过在转子表面开辅助槽减低电磁激励,改善NVH性能并进行转子结构强度校核分析。优化后方案48阶扭矩波动大幅下降,最高工作转速16000r/min下强度安全系数1.46,1.1倍最高工作转速17... 针对纯电动汽车在25~50km/h车速时出现48阶啸叫问题,文章通过在转子表面开辅助槽减低电磁激励,改善NVH性能并进行转子结构强度校核分析。优化后方案48阶扭矩波动大幅下降,最高工作转速16000r/min下强度安全系数1.46,1.1倍最高工作转速17600r/min下强度安全系数1.6。最后通过实车NVH主观评估满足要求,48阶车内噪声在车速25~60km/h范围内比优化前改善5~10dB。 展开更多
关键词 NVH优化 扭矩波动优化 电磁力优化 结构强度
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Flywheel and Induction Motor Sizing for Torque Fluctuation Optimization in Reciprocating Compressor
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作者 Java Atayde Pedreira 《Journal of Mechanics Engineering and Automation》 2013年第9期543-550,共8页
Reciprocating compressors are prone to high cyclic loads. The high required performance relies on a good design focusing a torque oscillation applied by the driver. In the first part of this job, dynamic model of reci... Reciprocating compressors are prone to high cyclic loads. The high required performance relies on a good design focusing a torque oscillation applied by the driver. In the first part of this job, dynamic model of reciprocating is presented. Newton-Euler method is used to get motion equations. In the second part, numerical results are presented. Simulations are used for calculating the driving moment as function of crankshaft motion. These results illustrate the effect of the flywheel and motor on its dynamics and are used for induction motor selection and flywheel sizing for optimizing crankshaft torque fluctuation and power consumption reduction. 展开更多
关键词 FLYWHEEL reciprocating compressor torsional vibration induction motor.
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