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<b>Purpose:</b> <p>High Energy Photon Source (HEPS) has strict restrictions to the vibration levels on storage ring slab. To assess the impact of vibrations reasonably, it is imperative to study the vibration attenuation on-site.</p> <b>Methods:</b> <p>To investigate the vibration propagation characteristics across a range of frequencies at the HEPS site, a series of measurements were performed. A shaker was utilized to artificially produce vertical sinusoidal excitations ranging from 10Hz up to 100 Hz. The vibration attenuation was recorded along the bare ground at these varying frequencies.</p> <b>Results:</b> <p>A decay formula was derived, and a key parameter range was identified. These attenuation formulae were incorporated into the beam dynamics model, allowing an assessment of the vibration impact from a high-power water-cooling pump situated near the HEPS storage ring (SR).The vibration measurement data collected from the slab of the SR tunnel adjacent to the pump correlated well with the evaluation results.</p> <b>Conclusion:</b> <p>This study establishes a vibration decay formula for varying frequencies at HEPS, completes the vibration beam dynamics model, and provides a foundation for accurately assessing vibration influences for both internal and external vibration sources around the HEPS campus. Furthermore, it serves as a reference for research methodologies concerning vibration propagation on the ground.</p>

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Vibration attenuation on HEPS bare ground with different frequencies

  • 期刊论文

  • 发表日期：

    2025年12月5日

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  • Xiang-Yu Tan,
  • Yu-Ning Yang,
  • Fang Yan,
  • Zi-Hao Wang,
  • Wen-Jie Wu,
  • Xiang-Rong Fu,
  • Jun Lei,
  • Guo-Ping Lin,
  • Gang Xu,
  • Xiyang Huang,
  • Yi Jiao,
  • Wei-Min Pan

摘要

Purpose:

High Energy Photon Source (HEPS) has strict restrictions to the vibration levels on storage ring slab. To assess the impact of vibrations reasonably, it is imperative to study the vibration attenuation on-site.

Methods:

To investigate the vibration propagation characteristics across a range of frequencies at the HEPS site, a series of measurements were performed. A shaker was utilized to artificially produce vertical sinusoidal excitations ranging from 10Hz up to 100 Hz. The vibration attenuation was recorded along the bare ground at these varying frequencies.

Results:

A decay formula was derived, and a key parameter range was identified. These attenuation formulae were incorporated into the beam dynamics model, allowing an assessment of the vibration impact from a high-power water-cooling pump situated near the HEPS storage ring (SR).The vibration measurement data collected from the slab of the SR tunnel adjacent to the pump correlated well with the evaluation results.

Conclusion:

This study establishes a vibration decay formula for varying frequencies at HEPS, completes the vibration beam dynamics model, and provides a foundation for accurately assessing vibration influences for both internal and external vibration sources around the HEPS campus. Furthermore, it serves as a reference for research methodologies concerning vibration propagation on the ground.