| Citation: | FENG Xinming, DUAN Dengyan, ZHAO Hong, et al. A method for increasing stability of helicopter suspension based on active jet device and sling feedback[J]. Journal of Aerospace Power, 2025, 40（3）：20230451 doi: 10.13224/j.cnki.jasp.20230451
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A method of increasing stability of suspension by combining active jet device and sling feedback was proposed. The coupling model of CH-47 helicopter/elastic sling/rigid body hanging object was established. Targeting the swing and unstable yaw motion of the hanging object, an active jet device was designed to generate damping force and torque to restrain the swing and yaw of the hanging object through the thrust of the ducted fan. Considering the driving force limitation of the jet device, sling feedback was introduced to further inhibit the swing of the hanging object. The attitude control of the helicopter adopted active disturbance rejection control to suppress the disturbance caused by the movement of the hanging object. The effects of key parameters such as the sling feedback gain compensation and the maximum driving force on the stability of the slung and the energy consumption of the jet were studied. The results showed that the introduction of active jet significantly inhibited the swing and yaw of the hanging object; under reasonable parameter configuration, the combined stability augmentation method had lower energy consumption and better stability augmentation performance than active jet device alone.
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