A Novel Torsional Excitation Scheme for Determining Mechanical Transfer Function and Natural Frequencies of Circumferential Vibration in PM Brushless Machine Drives

作者：Leong J H; Zhu Z Q^*

来源：IEEE Transactions on Magnetics, 2011, 47(10): 4195-4198.

DOI：10.1109/TMAG.2011.2151179

• Cogging torque
• mechanical resonance
• permanent magnet brushless machine
• vibration

This paper presents a novel method, which utilizes the cogging torque as excitation, to determine the mechanical resonances and transfer function of a PM brushless drive for circumferential vibration analysis. By driving the prototype machine at various speeds using an in-line servo drive and measuring the cogging torque induced vibration response at each operating speed using a circumferentially placed accelerometer, the transfer function of the prototype drive can be obtained. The effectiveness of the proposed method has been confirmed experimentally.

• 出版日期2011-10