高速列车与轨道垂向动力耦合仿真模型的开发

Development of Simplified Model and Computer Simulation for Vertical Vibration between Train and Track

阐述了两种主要的连续弹性支承轨道模型和求解方法，提出了一种采用精确Ｔｉｍｏｓｈｅｎｋｏ梁的多点作用多点响应移动轨道模型。以此开发的ＴＴＲＳ仿真软件能够模拟具有几百个以上轮对的列车与轨道耦合振动，以研究我国高速与重载条件的列车运行时转向架与轨道的中低频响应，为结构与参数的优化提供依据。

This paper describes two important W/R Model with elastic foundation and related theoretically analytical methods. A Timoshenko beam moving track model is founded for the multi exciting and multi response of train/track. Based on the EBEF model, a TTRS computer simulation software can deal with the coupling vertical vibration of hundreds wheelsets and track. It can be used to predict the dynamic behavior of the high speed train/track and the heavy loads freight train/track. So, it can also be used to optimize the parameters and structures of the truck and track.