首页|Research on Vibration Control of FAST Feed Cabin Based on Active Mass Damper
Research on Vibration Control of FAST Feed Cabin Based on Active Mass Damper
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In this paper,an effective active vibration control method was investigated to further improve the positioning accuracy of the Five-hundred-meter Aperture Spherical radio Telescope(FAST)feed cabin.The actual operation data of FAST was collected to analyze the vibration characteristics of the feed cabin in multiple directions.A simplified model of the cabin-cable system was established to evaluate the effects of a mass damper on different vibration frequencies and modes.On this basis,an active mass damper system and control system were designed for the cabin with multiple degrees of freedom and modal variation characteristics.Theoretical calculation and simulation proved that it has a significant effect on improving the damping of the cabin-cable system and suppressing the vibration of the FAST feed cabin.
telescopesmethods:data analysisinstrumentation:miscellaneoustechniques:miscellaneousAstronomical InstrumentationMethods and Techniques
Lucong Zhang、Jinghai Sun、Peng Jiang
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National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China
University of Chinese Academy of Sciences,Beijing 100049,China
Key Laboratory of Five-hundred-meter Apeture Spherical radio Telescope,Beijing 100020,China
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