Research on rail pressure straightening based on ANSYS
The three-point pressure straightening problem of steel rail was studied based on elastic-plastic mechanics.Firstly,according to the elastic-plastic deformation theory of material,the theoretical formula of straightening force required by using three-point pressure straightening method was derived.Then,the finite element model of rail straightening process was established by ANSYS finite element analysis software,ahe straightening process of 75 kg/m rail was simulated,and the results were analyzed.The simulation results showed that the deflection of the rail was significantly reduced after straightening,which verified the correctness of the rail straightening force model deduced in this paper.The model could better predict the straightening force required by the rail with different degrees of bending,and provided a certain theoretical guidance for the rail straightening process.
railpressure straighteningelastic-plastic deformationstraightening forcedeflectionfinite element simulation
NETL
NSTL
万方数据
维普
