弹簧双振子模型动力学行为的数值模拟与分析

Numerical simulation and analysis of the dynamics of the spring double-oscillator model

在飞速前进的列车上,列车速度越快,紧急制动情况下,车厢间碰撞的风险性越高,因此缓冲器的作用很大。通过选取以弹簧缓冲器相衔接的两个车厢,构建出弹簧双振子模型,模拟无摩擦力与有摩擦力情况下弹簧双振子的运动行为,分析弹簧双振子模型的运动轨迹、速度变化、弹簧弹力等变化情况,探究弹簧在该模型中的作用。研究结果显示,在误差范围内模拟数据与理论分析的结果一致。

In the fast moving train,the faster the train travels,the higher risk of collision between carriages in case of emergency braking will be,so the role of buffer is very large.By selecting two carriages connected by a spring buffer,a spring double-vibrator model is built to simulate the motion behavior of the spring double-vibrator without friction and with friction,based on which we analyze the movement track,velocity change,spring elastic force and other changes of the spring double-vibrator model,and explore the role of the spring in this model.The simulated data are consistent with the results of theoretical analysis within the error range.