摘要
应用弹性系统动力学总势能不变值原理和形成矩阵的“对号入座”法则建立了22个自由度的博格板式轨道单元,并采用有限单元法分析了轨道的竖向自振特性及轨道结构参数对固有频率的影响。
In this article the principle of the total potential energy being constant of the elastic system dynamics and the method of ＂take one＇s seat according to the number on the ticket＂ in forming the matrix are used to establish 22 free degree Burger slab track units, and the finite element method is also employed to analyze the characteristics of the vertical natural vibration of the track and the influence of the track＇s structural parameters on the natural frequency.
出处
《铁路工程造价管理》
2006年第5期4-7,共4页
Railway Engineering Cost Management
关键词
博格板式无碴轨道
自振特性
固有频率
Burger slab ballastless track, characteristics of natural vibration, natural frequency
