This paper aims to develop a time domain analysis method capable of accurately simulating the vehicle-soil-track interaction phenomenon in a computationally rigorous manner. The proposed method takes full account of wave propagation effects in the subsoil half-space through the development of a systematic frequency dependent lumped parameter assembly. A robust multi-objective optimization methodology is proposed for the calibration of the developed lumped parameter assembly targeting the dynamic behavior, global stability and passivity of the track-subsoil system while maintaining the broad applicability of the method by any commercial FEM software. A case study of a ballasted track on a soft clay profile is presented in order to investigate the efficiency of the proposed methodology. Finally, the monitored response of a modern ballastless high speed track located in mainland Europe is used for further verification. Results demonstrate the efficiency, accuracy and applicability of the proposed methodology.

本文旨在开发一种时域分析方法，该方法能够以计算严格的方式准确模拟车辆-土壤-轨道相互作用现象。通过开发系统频率相关的集总参数组件，该方法充分考虑了波在地下半空间的传播效应。提出了一种鲁棒的多目标优化方法，该方法可针对开发的集总参数组件进行标定，目标是跟踪-地下土壤系统的动态行为，整体稳定性和无源性，同时通过任何商用FEM软件保持该方法的广泛适用性。为了研究所提出方法的效率，提出了在软黏土剖面上压载轨道的案例研究。最后，位于欧洲大陆的现代无ball高速轨道的监控响应用于进一步验证。结果证明了所提出方法的效率，准确性和适用性。