Based on the Hertz contact theory, the collision model between rotor and catcher bearing inner race and the real-time dynamic stiffness of the bearing after AMB failure are respectively established.
基于Hertz接触理论，分别建立A MB失效后转子与保护轴承内圈之间的碰撞模型和保护轴承的实时动刚度模型。
Using the principle of virtual displacement and a rigid-plastic constitutive model, the stiffness matrix of the new contact element was deduced.
采用虚位移原理和刚塑性本构模型，推导了接触单元的刚度矩阵。
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