In this model,the tramcar was regarded as two degrees of freedom spring-mass-damper system,and the track was regarded as Bernoulli-Euler beam that locates on continuous and elastic ballast.

• 模型中,矿车被等效为两自由度弹簧-质量-阻尼系统,铁轨被等效为铺设在连续弹性道床上的伯努利-欧拉梁,矿车与铁轨的振动相互耦合。