Abstract:This paper used a continuous-elastic bar with two segments to model the body standing on a footbridge and built the crowd-footbridge-tuned mass damper (TMD) vibration system. By simplifying the static crowd as a generalized human body, we studied the dynamic characteristics of the generalized human-footbridge-tuned mass damper vibration system and the parameter design of TMD. We identified the parameters of generalized human body through the principle of least square. Comparing with the data available from experiments, the correctness of simplifying the static crowd to a generalized human was verified. Utilizing the root-mean-square acceleration as the optimization criterion to assess the degree of human body comfort, the optimal parameters of a TMD system were discussed.
孙昊,周叮,刘伟庆,李枝军. 人群简化模型与人行桥TMD参数设计研究[J]. 振动与冲击, 2016, 35(4): 217-223.
SUN Hao,ZHOU Ding,LIU Wei-qing,LI Zhi-jun . The simplified model of crowd and the parameter design of TMD for footbridges. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(4): 217-223.
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