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A Phenomenological Model of Vibrations Transfer in Connectors for Fretting Corrosion Phenomena

机译:微动腐蚀现象的连接器振动传递的现象学模型

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摘要

The fretting corrosion is still a difficult phenomenon to apprehend in its entirety. Indeed, a mechanical action will cause a degradation of the contact resistance, by a mixture of mechanical, chemical and electrical phenomena, whose exact mechanisms are not fully understood. This leads to the fact that aging models still fail to account for experimental data. Damage criteria exist, relative movement distances of the interface. However, the mechanical excitation does not occur at the contact interface, but is applied to the entire connector. It is to link this external stress with the internal behavior that we have set up a model of transfer function of vibrations between different parts of the connector, starting from measurement on a real system. From these measurements, a simple model is set up, in order to be able to express, from a given vibration profile, the behavior of the contact zone in order to check whether it meets the criteria of non-damage.
机译:微动腐蚀仍然是一个很难完全理解的现象。确实,机械作用将由于机械,化学和电现象的混合而导致接触电阻的降低,其确切机理尚不完全清楚。这导致老化模型仍然无法解释实验数据这一事实。存在损坏标准,即界面的相对移动距离。但是,机械激励不会在接触界面处发生,而是会应用于整个连接器。为了将这种外部应力与内部行为联系起来,我们建立了一个连接器不同部分之间的振动传递函数模型,该模型从在实际系统上进行测量开始。根据这些测量结果,可以建立一个简单的模型,以便能够根据给定的振动曲线表示接触区的行为,以检查接触区是否符合非破坏标准。

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