摘要
基于车辆-轨道耦合动力学理论,根据秦-沈客运专线车辆的结构形式、悬挂特性及轨道结构特点,建立了具有两系悬挂的(客车)车辆-(有碴)轨道-路基垂向统一模型。采用研制的动力分析计算程序,对轨道随机不平顺激励下车辆-轨道-路基的动态响应进行了数值计算,并将路基基床表层动态响应的数值模拟结果与现场试验工点实测数据进行了对比分析。结果表明,该模型能较真实地反映车辆、轨道和路基垂向相互作用的基本力学特征,所得计算结果与实测数据比较吻合。
On the basis of the theory of vehicle-track coupling dynamics, according to the vehicle-track structure characteristics of Qin-Shen special railway line, the vehicle-track-subgrade vertical coupling model with double hysteretic hangings is established. The dynamic responses of vehicle-track-subgrade interaction under random track irregularities excitation are caculated, and the results are in good agreement with the field test data. The conclusion is that the model is feasible, and can truly describe the basic mechanical behavior of vehicle-track-subgrade vertical coupling interaction.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第3期38-41,共4页
Journal of Vibration and Shock
关键词
车辆-轨道-路基
动力分析模型
试验验证
动力响应
vehicle-track-subgrade
dynamic analysis model
test verification
dynamic response
