摘要
结合秦沈客运专线基床路基实际状况,利用车路耦合动力分析模型,对高速列车荷载作用下车路系统动力响应进行仿真分析。计算列车速度为200km/h和300km/h时不同基床表层厚度下的车辆、轨道及基床路基主要动力性能指标,并与测试结果进行对比分析。测试结果验证了计算模型的可靠性。根据计算结果分析列车速度与基床表层厚度对车路系统动力响应的影响规律,对秦沈线基床表层设计提出建议。
Based on the working conditions of Qin-Shen railway, the dynamic response of a vehicle/subgrade system with high-speed train load is performed using a coupled vehicle/subgrade dynamic model. The main dynamic behavior indeies of vehicle, track and subgrade with different thicknesses are calculated under the train velocity of 200 km/h and 300 km/h. The calculation results are compared with the experimental data and the reliability of the numerical analysis is verified. According to the computed results, the effect of train velocity and subgrade thickness on the dynamic response of the vehicle/subgrade system are analyzed. Suggestions are given for the subgrade design for Qin-Shen railway.
出处
《振动与冲击》
EI
CSCD
北大核心
2007年第3期64-67,共4页
Journal of Vibration and Shock
关键词
车路系统
动力响应
数值分析
现场试验
vehicle/subgrade system, dynamic response, numerical analysis, on-site experiment
