TY - JOUR T1 - A novel torsional excitation scheme for determining mechanical transfer function and natural frequencies of circumferential vibration in PM brushless machine drives JO - IEEE Transactions on Magnetics PY - 2011/01/01 AU - Leong JH AU - Zhu ZQ ED - DO - DOI: 10.1109/TMAG.2011.2151179 VL - 47 IS - 10 SP - 4195 EP - 4198 Y2 - 2025/01/03 ER -