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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Bibliographische Detailangaben
Hauptverfasser: LIU JIE, LI LIANGCAO, YANG KU, MA ZHANQI, XU HAIBIN
Format: Patent
Sprache:eng
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Beschreibung
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.