Coulomb friction model with high accuracy is proposed so that more accurate equations of motion can be established for the transient response of the singledisk rotor which drops onto the backup bearing as soon as AMB shuts down.

• 摘要就磁轴承发生故障时转子坠入备用轴承所产生的非线性瞬态响应，提出了摩擦力的计算模型，从理论上建立了更为精确的运动微分方程。