摘要
本文建立了车 -桥 -MTMD系统振动方程 ,对利用多重调频质量阻尼器 (MTMD)抑制铁路上承钢板梁桥横向振动的效果进行了模拟计算和现场试验。结果表明 :MTMD能有效地抑制桥梁横向振动出现的“准共振”响应 ,模拟计算时减振率最大值达到 62 %,试验中实际的减振率最大值达到 5 1.83 %。
In the paper,the equations of motion for the vehicle_bridge_MTMD system are presented and the effectiveness of suppressing the transverse vibration of the deck steel plate girder bridge with multiple tuned mass dampers(MTMD) is investigated by the field test and simulated calculation.The results show that the“quasi-resonant”responses of the bridge are effectively suppressed.The maximum transverse vibration amplitude of the bridge is reduced by 51.83% in the field test and about 62% in simulated calculation.
出处
《振动与冲击》
EI
CSCD
2000年第1期19-23,共5页
Journal of Vibration and Shock
关键词
上承钢板梁桥
横向振动
振动控制
MIMD
阻尼器
multiple tuned mass dampers(MTMD),deck steel plate girder bridge,transverse vibration,“quasi_resonant”response,field test.
