摘要
为探讨现有规定对磁悬浮轨道梁受温差荷载作用下产生的位移要求是否过于严苛,建立三种不同截面高度的磁浮双跨轨道梁有限元模型进行稳态分析,得到三种不同环境温度下的温度分布及竖向、横向最大位移。比较分析可知:竖向挠跨比均不满足现有规范,现有规范过于严苛;横向挠跨比均满足现有规范。
For discussing whether current rules about displacement of maglev guideway under tempera- ture load are too strict to realize, three different- depth -of- section double spans guideways model are established. Distribution of temperature and vertical and horizontal displacement of model in three different ambient temperatures are solved by using thermal - structure coupling analysis of ANSYS. The results show that the vertical displacement of guide way does not satisfy the latest standards and the horizontal displacement can satisfy the latest standards.
出处
《河北工程大学学报（自然科学版）》
CAS
2015年第2期24-27,共4页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
双跨轨道梁
温差荷载
温度场
挠跨比
double spans guideways model
temperature difference
temperature field
ration of de- flection to span
