Research on control strategy of abrasive belt type rail grinding for corrugation repair process

The rail corrugation will lead to noise pollution and abnormal vibration in the railway operation process which greatly influences the safety, comfort, and stability of the train operation. However, although the advantages of abrasive belt rail grinding in repairing rail diseases have been verified, there is still no relative grinding control strategy for rail corrugation repair process due to its characteristics of regionality and no grinding benchmark. Therefore, this paper analyzed the difference between the grinding process of rail corrugation and ideal rail surface, and established material removal model for repairing of rail corrugation. By comparing the average valid value of moving wave amplitude and the improvement degree of rail corrugation, the most suitable grinding control strategies for repairing different types of corrugation diseases were obtained, which can further improve the grinding quality and efficiency of abrasive belt rail grinding in repairing rail corrugation.