Abstract
The application of laser Doppler vibration measurements is a powerful technique for monitoring and analysing mechanical systems. Frequently experiments in operative conditions may be a useful tool for analysing the real behaviour of an object. However, in several applications we may find that the object is rotating during its work and in these conditions the measurement with traditional techniques becomes difficult. For these reasons a system for the tracking of rotating objects has been developed in order to perform vibration measurements. In the present work the application of the tracking laser scanning vibrometer on an operative condition problem is shown. A tracking laser scanning vibrometer has been used for measuring the vibration of a map of points on the object surface during a complete circular motion. The analysed object was a model of a naval propeller working in water. A comparison has been found with the static analysis, in water and air, of the same propeller. Some results are shown.
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