Electromechanical coupling modeling and micro vibration characteristics simulation and an experimental study of data transmission antenna

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (16) : 294-302.

ZHENG Zhaomingyue1,2, CHENG Wei1, WANG Guangyuan3, LI Ming1

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Abstract

The micro vibration characteristics of a data transmission antenna driven by stepping motors are studied. The dynamic equation of the stepping motor is simplified by the linearization method. According to the Fixed Interface Mode Synthesis Method, the dynamic model of the stepping motor driving the flexible load on the flexible boundary is established, and the analytical expression of the micro vibration of the data transmission antenna is given. The above micro vibration model is verified by simulation and experiment, and the causes and influencing factors of micro vibration are analyzed. The results show that the frequency at the peak of frequency domain obtained by experiment and simulation is consistent, and the amplitude error is less than 9.41%. The micro vibration of data transmission antenna can be effectively reduced by reasonably selecting the velocity of stepper motor. The model can be used in the fields of on orbit micro vibration prediction and antenna control system design.
Key words: data transmission antenna; micro vibration; electromechanical coupling; stepping motor; Fixed Interface Mode Synthesis Method

Key words

data transmission antenna / micro vibration / electromechanical coupling / stepping motor / Fixed Interface Mode Synthesis Method

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ZHENG Zhaomingyue1,2, CHENG Wei1, WANG Guangyuan3, LI Ming1. Electromechanical coupling modeling and micro vibration characteristics simulation and an experimental study of data transmission antenna[J]. Journal of Vibration and Shock, 2022, 41(16): 294-302

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