摘要
在考虑轨道不平顺的情况下,通过建立车-桥-TMD(TunedMassDamper)动力系统振动方程,研究了编组列车过桥时TMD的控制效应、列车过桥时速度对桥梁挠度的影响和TMD对乘坐舒适性的影响。作者最后给出了不同质量比下TMD控制的效果对比曲线,提出了中小跨度桥梁的建议最佳质量比。
Considering the irregularities of track, this paper analyzes the effect oi velocity on the vertical displacement of bridges when the organized train groups passing under the moving loads Then the TMD control is studied and the riding comfort is analyzed through establishing train-bridge-TMD dynamic vibration equations. The influence of mass ratio is presented and the best mass ratio is given. The results show that the controlling effect of TMD is evident.
出处
《西华大学学报（自然科学版）》
CAS
2005年第4期24-27,共4页
Journal of Xihua University:Natural Science Edition
基金
西南交通大学基础科学研究基金(编号:2001B13)
