Full Turbine Roving Hammer Test-UW Madison

Test Information

This test was performed in early January 2012

Two sets of measurement were taken with separate accelerometer positions.

The hammer was roved over approximately 60 points on the structure to obtain a fairly dense pattern of points, primarily on the blades. The span of the test was 0 to 800 Hz.

Due to a hardware limitation of 4 channels (3 accelerometers and 1 hammer) per test, the data was taken in two sets, using a total of 6 accelerometer locations. The accelerometers were placed off-center (to capture blade torsion) near the tips of the blades, and on the turbine nacelle. B+K Pulse Labshop software was used for data acquisition.

Photos

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  Typical Blade Accelerometer Setup

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  Hub Accelerometers, Triaxial and Single Axis

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  All Accelerometers--Wires were secured for test

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  Points used in Testing

Data and Geometry

All data sets are in the universal file format. Use WinRAR or similar to decompress the Dataset Files

Geometry File | Dataset 1 | Dataset 2

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  Point Resolution, Front View

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  Point Resolution, Side View

Results