您当前所在位置: 首页 > 学者

孙利民

  • 10浏览

  • 0点赞

  • 0收藏

  • 0分享

  • 149下载

  • 0评论

  • 引用

期刊论文

A Full-scale Experiment on Vibration Mitigation of Stay Cable

孙利民Limin SUN Chen SHI Haijun ZHOU Wei CHENG

,-0001,():

URL:

摘要/描述

Mechanical dampers are often installed near to anchorages of stay cables for mitigating vibrations due to wind or wind/rain. However, the optimal damping estimated by a linear theory is hard to be obtained and an efficiency factor between the designed damping and the practical one has to be considered for design. In this study, experiments of cable-damper system were conducted by using a 215 meters long full-scale stay cable. 7 types of mechanical dampers, including oil damper, viscous damper and MR damper, were adopted. The experimental results show that an inner type damper provided an additional damping (log decrement) 0.013, other outer type dampers provided additional damping larger than 0.030. Based on the experimental results, the authors suggest that the efficiency factor should be 0.3 for an inner type damper, and 0.5 for an outer type damper. The nonlinear design theory was also preliminarily studied.

【免责声明】以下全部内容由[孙利民]上传于[2006年06月16日 18时16分34秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

我要评论

全部评论 0

本学者其他成果

    同领域成果