路基沉降作用下道床板、钢轨垂向时程位移数据集

无砟轨道自身作为一种多层复合结构，为考虑其他结构层损伤对车辆系统振动响应的影响，除了考虑路基沉降变形的影响规律，还应当考虑到轨道结构变形对车辆振动的附加影响。参考国内外关于道床板、钢轨在性能检测方面的规范，本部分计算中车辆通过速度取300km/h，采用中国高速铁路无砟轨道不平顺谱作为轨道不平顺激励。当路基沉降波长取30m，幅值分别取10、20、30mm；沉降幅值取10mm，波长分别取10、20、30m，由此分别得到道床板、钢轨及车辆的振动响应结果。参考国内外相关车辆-轨道-路基耦合模型，保证计算数据具有真实性。Ballastless track is a multi-layer composite structure. To investigate the effect of damage to other structural layers on the vibration response of the vehicle system, this study considers not only the influence law of subgrade subsidence deformation but also the additional impact of track structural deformation on vehicle vibration. Referring to domestic and foreign specifications for performance testing of track slabs and rails, the vehicle passing speed is set to 300 km/h in the calculations of this section, and the ballastless track irregularity spectrum of China's high-speed railways is adopted as the track irregularity excitation. When the subgrade subsidence wavelength is set to 30 m, the amplitudes are taken as 10, 20, and 30 mm respectively; when the subsidence amplitude is set to 10 mm, the wavelengths are taken as 10, 20, and 30 m respectively. The vibration response results of the track slab, rail, and vehicle are thus obtained respectively. Referring to domestic and foreign relevant vehicle-track-subgrade coupling models, the authenticity of the calculated data is ensured.

搜集汇总

背景与挑战

背景概述

该数据集针对无砟轨道结构，研究了路基沉降对车辆系统振动的影响，通过设置不同沉降波长和幅值参数，基于车辆-轨道-路基耦合模型计算了道床板和钢轨的垂向时程位移。数据生成考虑了300km/h车速和中国高速铁路轨道不平顺谱激励，以仿真方式提供了振动响应结果。数据集由西南交通大学创建，包含xlsx、png和docx格式文件，总数据量为18.71MB。