摘要
提出了一种新型调谐类阻尼系统——调谐双重液柱/质量阻尼器(TDLCMD),同时提出运用相位差分析方法解析由一个主TLCD与一个次TLCD组合而成的双重液柱水箱内水的动力效应对TDLCMD系统控制性能的影响.推导了结构-TDLCMD系统的运动方程,通过数值模拟研究了不同TLCD水柱长度的TDLCMD系统在风振与地震激励情况下对结构的整体控制性能,对比了相应TMD、TLD、TLCD的控制效果,并对TDLCMD的设置提出了建议.结果表明,TDLCMD经优化设置后可取得与普通TMD相近的控制效果,优于TLD与TLCD.同时,TDLCMD较TMD更经济且更具实用价值.
This paper presents a new tuned-type damper system-tuned double liquid columns/mass damper (TDLCMD). A phasic difference analysis method is also presented to analyze how dynamic effect of water in the double TLCDs system (DTLCD) composed of a major and a minor TLCD-affects the control performance of TDLCMD system. The equation of motion of structure-TDLCMD system is formulated, numerical simulaion conducted and the performances of ordinary TMD, TLD, TLCD and TDLCMD compared under wind and earthquake excitation, respectively. Recommendations for designing a TDLCMD are also provided. Results show that the optimally designed TDLCMD can achieve a performance level close to that of an ordinary TMD, and outperforms TLD and TLCD. As compared with ordinary TMD, the TDLCMD is more economical and practical.
出处
《西安建筑科技大学学报(自然科学版)》
CSCD
北大核心
2008年第3期354-360,共7页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50608021)
国家教育部博士学科专项基金资助项目(20061078001)~~