The driveline for a tractor vehicle is simplified as a 2-DOFs(degreeof freedom)torsional vibration system, and is described as a second-order differentialequation.
将牵引车的传动系简化为一个2自由度的扭转振动系统,并以二阶微分方程描述。
2
By suing coincide degree theory, this paper discusses the existence of periodic solution for a kind of differentialequation with several delays.