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首页> 外文期刊>Mechanical systems and signal processing >Estimation of the in-plane vibrations of a rotating spindle, using out-of-plane laser vibrometry measurements
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Estimation of the in-plane vibrations of a rotating spindle, using out-of-plane laser vibrometry measurements

机译：使用平面外激光振动测量法估算旋转主轴的平面内振动

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摘要

A method for estimating the in-plane vibrations of a rotating spindle using out-of-plane laser vibrometry measurements is described. This method enables the possibility to obtain the two orthogonal radial vibration components of a rotating spindle. The method uses the fact that the laser vibrometer signal is a total surface velocity of the measurement point in the laser direction. Measurements are conducted on a rotating milling machine spindle. The spindle is excited in a controlled manner by an active magnetic bearing and the response is measured by laser vibrometer in one of the two orthogonal directions and inductive displacement sensors in two orthogonal directions simultaneously. The work shows how the laser vibrometry crosstalk can be used for resolving the in-plane vibration component, that is the vibrations in the laser vibrometer cross direction. The result is compared to independent measurement signals from the displacement sensors. The measurement method can be used for vibration measurements on rotating parts, for example, where there is lack of space for orthogonal measurements.
机译：描述了一种使用平面外激光振动测量法估计旋转主轴的平面内振动的方法。该方法使得获得旋转主轴的两个正交的径向振动分量成为可能。该方法利用以下事实：激光振动计信号是沿激光方向的测量点的总表面速度。在旋转的铣床主轴上进行测量。主轴由主动磁轴承以受控方式进行励磁，并通过激光振动计在两个正交方向之一上测量响应，同时在两个正交方向上通过感应位移传感器测量响应。这项工作说明了如何使用激光测振串扰解决平面内振动分量，即沿激光测振仪横向的振动。将结果与位移传感器的独立测量信号进行比较。该测量方法可以用于旋转部件上的振动测量，例如，在缺少正交测量空间的地方。

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