期刊文献+

广义人体-结构-TMD耦合系统

Generalized human-structure-TMD coupled system
下载PDF
导出
摘要 研究了广义人体-结构-TMD耦合系统的动力学特性.利用2段连续的直杆模拟静立人体,将广义人体和结构均简化为单自由度,并与悬挂于结构下部的TMD共同组成一个三自由度的振动系统.推导出广义人体-结构-TMD系统的无阻尼固有频率、位移反应谱和加速度反应谱,并将结果与二自由度的结构-TMD系统进行对比.结果表明,广义人体对系统的动力学特性具有一定的影响.当结构基频为人体基频的2倍时,这2个系统的无阻尼固有频率差别较小;当结构基频与人体基频接近时,这2个系统的无阻尼固有频率差别明显. The dynamic characteristics of the generalized human-structure-TMD( tuned mass damper) coupled system were studied. A continuous straight bar with tw o segments was used to model the static body. The generalized human and the structure were simplified as single-degree-of-freedom,and were combined with the TMD suspended under the structure to form a 3DOF( three-degree-of-freedom) vibration system. The undamped natural frequency,the displacement spectra and the acceleration spectra of the generalized human-structure-TMD system were derived. The comparison results betw een the 3DOF vibration system and the 2DOF( tw o-degree-of-freedom) structure-TMD system show that the generalized human-body has some effects on the dynamic characteristics of the system. When the fundamental frequency of the structure is tw ice that of the body,the difference of the undamped nature frequencies of these tw o systems is small. When the fundamental frequency of the structure is close to that of the body,the difference is considerable.
出处 《东南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2015年第2期348-353,共6页 Journal of Southeast University:Natural Science Edition
基金 国家自然科学基金资助项目(11372127)
关键词 广义人体-结构-TMD系统 人体模型 耦合振动 动力学特性 generalized human-structure-TMD(tuned mass damper) system body model coupled vibration dynamic characteristics
  • 相关文献

参考文献9

  • 1孙利民,闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999. 被引量:124
  • 2樊健生,陈宇,聂建国.人行桥的TMD减振优化设计研究[J].工程力学,2012,29(9):133-140. 被引量:32
  • 3李爱群,陈鑫,张志强.大跨楼盖结构减振设计与分析[J].建筑结构学报,2010,31(6):160-170. 被引量:73
  • 4Setareh M, Ritchey J K, Baxter A J, et al. Pendulum tuned mass dampers for floor vibration control [J]. Journal of Performance of Constructed Facilities, 2006, 20(1): 64-73.
  • 5Falati S. The contribution of non-structural components to the overall dynamic behaviour of concrete floor slabs [D]. Oxford, UK: University of Oxford, 1999.
  • 6Ji T,Ellis B R. A continuous model for the vertical vibration of the human body in a standing position [C]//United Kingdom Informal Group Meeting on Human Response to Vibration. Silsoe, UK, 1995: 18-29.
  • 7Ji Tianjian. Understanding the interactions between people and structures [J]. The Structural Engineers, 2003, 81(14): 12-13.
  • 8Zhou Ding, Ji Tianjian, Liu Weiqing. Dynamic characteristics of a standing human on a SDOF structure [J]. Advances in Vibration Engineering, 2012, 11(1): 85-98.
  • 9Matsumoto Y, Griffin M J. Dynamic response of the standing human body exposed to vertical vibration: influence of posture and vibration magnitude[J]. Journal of Sound and Vibration, 1998, 212(1): 85-107.

二级参考文献28

  • 1孙利民,闫兴非.人行桥人行激励振动及设计方法[J].同济大学学报(自然科学版),2004,32(8):996-999. 被引量:124
  • 2肖新标,沈火明.移动荷载作用下的桥梁振动及其TMD控制[J].振动与冲击,2005,24(2):58-61. 被引量:44
  • 3唐时军,唐驾时,欧耀辉.竖向地震作用下的结构TMD控制分析[J].湖南理工学院学报(自然科学版),2006,19(3):60-63. 被引量:3
  • 4Pimentel R L,Pavic A,Waldron P.Evaluation of design requirements for footbridegs excited by vertical forces from walking[J].Canadian Journal of Civil Engineering,2001,28:769-777.
  • 5Dallard P,Fitzpatrick A J,Flint A,et al.The London Millennium Footbridge[J].The Structural Engineering,2001,79(22):17-35.
  • 6Bachmann H.Vibration upgrading of gymnasia,dance halls and footbridges[J].Structural Engineering International,1992,(2):118-124.
  • 7Bachmann H.Case studies of structures with man-induced vibrations[J].ASCE Journal of Structural Engineering,1992,(118):631-647.
  • 8Pimentel R L,Waldron P.Guidelines for the vibration serviceability limit state of pedestrian bridges[A].International Seminar on Structural Assessment-The Role of Large and Full Scale Testing[C].London:[s.n.],1996.339-346.
  • 9British Standard 5400,British Standards Institution(1978).Steel,concrete and composite bridges:Specification for loads[S].
  • 10Fujino Y,Packeco B M,Nakamura S I,et al.Synchronization of human walking observed during lateral vibration of a congested pedestrian bridge[J].Earthquake Engineering and Structural Dynamics,1993,22:741-758.

共引文献217

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部