Articles | Volume 13, issue 2
https://doi.org/10.5194/ms-13-1019-2022
https://doi.org/10.5194/ms-13-1019-2022
Research article
 | 
19 Dec 2022
Research article |  | 19 Dec 2022

Dynamic modeling and vibration characteristics analysis of parallel antenna

Guoxing Zhang, Jianliang He, Jinwei Guo, and Xinlu Xia

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Cited articles

Altuzarra, O., Macho, E., Aginaga, J., and Petuya, V.: Design of a solar tracking parallel mechanism with low energy consumption, P. I. Mech. Eng. C-J. Mec., 229, 566–579, https://doi.org/10.1177/0954406214537249, 2015. 
Asadi, F. and Sadati, S. H.: Full dynamic modeling of the general Stewart platform manipulator via Kane's method, IJST-T. Mech. Eng., 42, 161–168, https://doi.org/10.1007/s40997-017-0091-3, 2018. 
Abid, M., Yu, J. J., Xie, Y., and Salam, A.: Conceptual design, modeling and compliance characterization of a novel 2-DOF rotational pointing mechanism for fast steering mirror, Chinese J. Aeronaut., 33, 3564–3574, https://doi.org/10.1016/j.cja.2020.03.032, 2020. 
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Short summary
The closed-form dynamics equation of the 1.8 m aperture parallel antenna is established. The relationship between the mechanism's natural frequency, displacement response, and resonance frequency is obtained. Based on the dynamic model, the closed-loop motion control strategy of the parallel antenna mechanism is established. The tracking error of the pitch and azimuth motion of the parallel antenna in the workspace is within ±0.05°.
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