| Citation: | CHEN Guowang, TANG Qian, LI Heng, et al. Response prediction modeling and experiment study of helicopter tail drive system[J]. Journal of Aerospace Power, 2025, 40(7):20240364 doi: 10.13224/j.cnki.jasp.20240364 |
To solve the problem of predicting the vibration response of the helicopter tail drive system during actual operation, a model for predicting the response of the helicopter tail drive system based on rigid-flexible coupled multibody dynamics was established. A simulation test bench of the system was built to analytically compare with the predicted value of the proposed model. The results showed that the response prediction model of the system can reflect the meshing frequency and the octave components consistent with the test data, and the error of the effective value of the vibration acceleration was within the range of −23.9%—20.6% under the conditions of variable rotational speed and variable load, which proved that the reliability of the proposed vibration response prediction method was demonstrated in the comparative results. The results provide a theoretical and experimental basis for the high safety service of helicopters.
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