Helicopter composite material propeller fatigue test system and method
The invention relates to a fatigue test system and method and specifically to a helicopter composite material propeller fatigue test system and method. A propeller fatigue test is achieved by a propeller forced resonance method on the basis of a second-order flapping vibration mode characteristic an...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to a fatigue test system and method and specifically to a helicopter composite material propeller fatigue test system and method. A propeller fatigue test is achieved by a propeller forced resonance method on the basis of a second-order flapping vibration mode characteristic and by means of a similarity between the vibration of an airfoil section in the vibration process of the propeller and the vibration of the propeller in a flying process. |
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