On-line Monitoring of Railway Deformation Using Acceleration Measurement

To ensure safety of railway operation, it is extremely important to regularly check railway conditions such as deformation of the rails. This paper presents an on-line rail deformation monitoring system for being implement on moving train so as to timely report any deformation beyond the threshold. The system is based an effective algorithm for detecting the rail deformation using three acceleration sensors mounted on the train. The proposed method can distinguish vibrations due to track deformation from those caused by motion of the train by analysing the lateral accelerations of the train´s crossbeam and the lateral acceleration of the bogie. This method is testing on the railway between Shenyang and Dalian. Through experiment of large number of collected data, the performance of the detection is applicable