Scholarlink

Purpose <p>Tuned liquid damper (TLD) has deficiencies including high water use, low effective damping, and ineffective vibration control. Its damping ratio and vibration control performance need to be improved, and lightweight design also needs to be realized.</p> Methods <p>A novel tuned liquid inerter damper (TLID), which combines a rack and gears inerter device with a TLD, is proposed. The theoretical mechanical model of TLID is established and its damping mechanisms are analyzed. The parameters for performance evaluation and the TLID optimization design procedure based on the time domain and frequency domain are presented respectively.</p> Results <p>Shaking table tests and theoretical analyses show that the combination of an inerter device and TLD can enhance the liquid sloshing in the tank, increase its apparent mass and actual damping value, and a better damping control effect can be obtained.</p> Conclusion <p>In comparison to the traditional TLD, TLID can achieve the goal of lightweight design and effective structural damping capacity that is superior to that of the traditional TLD with a smaller fluid mass ratio. The difference in damping performance between TLID and tuned mass inerter system (TMIS) is not significant, i.e., the choice of liquid as the mass element is also a suitable solution in practical engineering, which provides a positive idea for diversified engineering applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mechanical Model Analysis and Experimental Research on a Novel Tuned Liquid Inerter Damper

  • 期刊论文

  • 发表日期：

    2024年12月31日

查看全文
  • Haoding Sun,
  • Haoxiang He,
  • Lei Cao,
  • Yang Cheng

摘要

Purpose

Tuned liquid damper (TLD) has deficiencies including high water use, low effective damping, and ineffective vibration control. Its damping ratio and vibration control performance need to be improved, and lightweight design also needs to be realized.

Methods

A novel tuned liquid inerter damper (TLID), which combines a rack and gears inerter device with a TLD, is proposed. The theoretical mechanical model of TLID is established and its damping mechanisms are analyzed. The parameters for performance evaluation and the TLID optimization design procedure based on the time domain and frequency domain are presented respectively.

Results

Shaking table tests and theoretical analyses show that the combination of an inerter device and TLD can enhance the liquid sloshing in the tank, increase its apparent mass and actual damping value, and a better damping control effect can be obtained.

Conclusion

In comparison to the traditional TLD, TLID can achieve the goal of lightweight design and effective structural damping capacity that is superior to that of the traditional TLD with a smaller fluid mass ratio. The difference in damping performance between TLID and tuned mass inerter system (TMIS) is not significant, i.e., the choice of liquid as the mass element is also a suitable solution in practical engineering, which provides a positive idea for diversified engineering applications.