NUCLEAR TECHNIQUES, Volume. 48, Issue 3, 030201(2025)

Application of dynamic vibration absorber on mirror angular vibration suppression

Haoran YUAN, Shijing HE, Tianyu WU, Nuo CHEN, Zhizhuo WANG, Zhengrong OUYANG, and Fang LIU*
Author Affiliations
  • ShanghaiTech University, Shanghai 201210, China
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    Figures & Tables(9)
    Dynamic model of the dynamic vibration absorber
    The relationship between X1 and g ( f=1, μ=1/10)
    Photo of high-stability large-size mirror adjustment system for SHINE
    Angular vibration of reflecting mirror without vibration absorber (a) Time waveform, (b) Frequency spectra
    Schematic of variable stiffness dynamic vibration absorber
    Schematic diagram of high-stability large-size reflecting mirror adjustment system-vibration absorber
    Angular vibration of the reflecting mirror with dynamic vibration absorber (a) Time waveform, (b) Frequency waveform
    Performance improvement with dynamic vibration absorber (color online) (a) PSD of reflecting mirror angle, (b) RMS of reflecting mirror angle vibration
    • Table 1. Parameters of the dynamic model

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      Table 1. Parameters of the dynamic model

      参数名称

      Parameter name

      符号公式

      Symbol/Formula

      质量比 Mass ratioμ=m2/m1

      吸振器固有频率

      Natural frequency of absorber

      ωa=k2/m2

      主系统固有频率

      Natural frequency of main system

      ωn=k1/m1

      固有频率比

      Frequency ratio

      f=ωa/ωn

      激励频率比

      Excitation frequency ratio

      g=ω/ωn

      临界阻尼系数

      Critical damping coefficient

      cc=2m2ωn
      阻尼比Damping ratioξ=c2/cc
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    Haoran YUAN, Shijing HE, Tianyu WU, Nuo CHEN, Zhizhuo WANG, Zhengrong OUYANG, Fang LIU. Application of dynamic vibration absorber on mirror angular vibration suppression[J]. NUCLEAR TECHNIQUES, 2025, 48(3): 030201

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    Paper Information

    Category: ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS

    Received: Apr. 10, 2024

    Accepted: --

    Published Online: Apr. 15, 2025

    The Author Email: Fang LIU (刘芳)

    DOI:10.11889/j.0253-3219.2025.hjs.48.240171

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