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Method Detects Flutter in Aircraft Turbines

In aerospace research, flutter generally refers to undesired and self-sustained vibrations in turbine blades that can readily grow out of control, destroying them along with the engine and even the aircraft's wings.

Through experiments on a turbine test rig, researchers found that before the onset of flutter, one particular blade begins to act as a central hub in the network and adjacent blades start to oscillate in sync with it. This leads to the collective synchronization of all blades, resulting in potentially catastrophic flutter.

Source 

Topics:
Aeronautics Aerospace Aviation

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