Engine Testing

Engine Testing

The demand for environmentally friendly and more powerful jet engines is pushing engine design to new limits.

The correct interpretation of lifetime-relevant vibration phenomena  is one of  the most challenging and important tasks that can be successfully accomplished with laser vibrometry.

Measurement of turbine blade vibrations. Photo: Greg Roberts, Pratt & Whitney.

 

Lifetime-relevant vibration phenomena

Lifetime-relevant vibration phenomena

Blade integrated disk (blisk) technology is an innovation increasingly used in the design of jet engines. The correct interpretation of lifetime-relevant vibration phenomena is one of the most challenging and important tasks. Non-contact measurements taken with a Polytec Scanning Vibrometer are essential for precise vibration mode visualization and discrimination between acceptable and unacceptable localized vibration amplitudes. For more information, see the article “Using Scanning Vibrometry to Visualize Localization Effects of a Jet Engine Compressor Blisk".

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