The foil bearing consists of parts made of very thin, properly shaped foils. Usually, it is very difficult or even impossible to measure the vibrations of these elements during the bearing operation using traditional sensors. Therefore, the authors of this article have proposed an entirely new approach to this issue. This article discusses the analysis of vibrations of the structural supporting layer of a gas foil bearing at high rotational speeds. Instead of using a traditional method to measure the bearing journal movement, the measurement was performed using an ultra-high-speed digital camera. This type of measurement was used for the first time to analyse foil bearing displacement. It turned out that doing so can give a far more vibrant picture of what is happening in gas foil bearings during their operation. The article includes an analysis of foil vibrations. This phenomenon has already been analysed numerically, and this is the first time it has been analysed experimentally. The registered motion of the foils can be compared with the results obtained from numerical models, thus allowing their further development. One such comparison is shown in this article.

中文翻译：

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用超高速相机进行的翼型轴承中翼型振动的实验研究

箔轴承由非常薄且形状正确的箔制成的零件组成。通常，在轴承运行过程中使用传统的传感器来测量这些元件的振动非常困难，甚至不可能。因此，本文的作者提出了一种全新的方法来解决此问题。本文讨论了气体箔轴承结构支撑层在高转速下的振动分析。代替使用传统方法来测量轴承轴颈运动，而是使用超高速数码相机进行了测量。此类测量首次用于分析箔轴承位移。事实证明，这样做可以使气箔轴承运行过程中的情况更加生动。本文包括对箔片振动的分析。已经对该现象进行了数值分析，这是首次对其进行实验分析。箔的对齐运动可以与从数值模型获得的结果进行比较，从而可以进一步开发。本文显示了一个这样的比较。