Abstract:The efficiency of the rotorcraft could be improved significantly by varying the speed of the rotor based on the flight condition. Due to this reason, variable-speed rotor (VSR) technology is becoming popular, especially among urban air mobility vehicles. However, one of the biggest challenges of a VSR is the vibration of the rotor blade when it passes through a resonance point. A detailed study on the characterization of these resonances was performed by the authors (“Performance Advantages and Resonance Analy… Show more
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