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Abstract:
Considering wind-induced vibration of the feed supporting system with
cables for the optomechatronics design project of next generation large
spherical radio telescope, a novel ER damper is designed to realize the
additional damping control of this vibration. The model of wind is first
developed to implement this design and simulations. The damping force
model of the designed ER adaptive damper is developed in detail, and the
strategy of the additional damping control is proposed. The numerical
simulation results have verified the validity of the designed adaptive
ER damper to suppress the wind vibration of the feed supporting system,
and the maximum suppression of the wind-vibration can be reached 50% of
the original amplitude without ER damper. The favorable wind-induced
vibration suppression results have laid a solid foundation for the
engineering implementation of high precision trajectory tracking for the
next generation large radio telescope.
Key words:
Mechatronics Electrorheological adaptive damper Large radio
telescope Wind-induced vibration Additional damping control
of vibration
CLC No: TH39 TH113.2
国家自然科学基金、中科院国家天文观测中心大射电望远镜实验室资助项目. Received 20000613,
received in revised form 20001115
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