Taking into consideration nonlinear oil-film force, nonlinear elastic force and influence of nonlinear friction force,we established a dynamic model for the rotor-bearing system with rub-impact fault.

• 在同时考虑轴承油膜力、转轴非线性弹性力和碰摩发生时转静件间的相对速度对非线性摩擦力的影响基础上,构造了具有碰摩故障转子-轴承系统的动力学模型。