At the same time, the traditional Hertz contact theory and analyses of experiments are used to prove that the FEA model used in the paper is accuracy.

同时通过传统赫兹接触理论和试验对其进行验证，间接证明了有限元分析模型的合理性及有限元分析方法的可靠性。

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A new mathematical model for the non-Hertz contact problems is proposed based on the mixed variational principle. From this model, the finite element approximate formulae are derived.

本文从混合变分法原理着手，对弹性接触问题提出一种新的数学模式，并从中导出有限元的近似公式。

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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。

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