Joint-Stock Company Scientific and Innovation Center “Wagons” (Test Engineer)
Russian Federation
Russian Federation
Russian Federation
629.4.069
Purpose: To obtain CMDS initial data from the moving freight car (empty or loaded) wheelsets both newly manufactured or with rolling surface defects; to generate statistical data based on the results of registered readings from CMDS inbuilt sensors installed on the 18-9891 model bogie. Methods: Statistical data processing obtained from the CMDS device tested on a railway car to determine the maximum acceleration amplitudes of a moving car with different wheelset conditions and impact frequency for each speed mode. Results: The research tests have shown that the CMDS captures the impact of a defective wheel against a rail. The algorithm for automatic detection of a defective wheel impact against the rail can be built based on the frequency component of increased acceleration amplitudes with the appropriate loading mode and speed of movement. Practical significance: The test results obtained allow developing algorithms for defect detection on the train wheelset rolling surface using CMDS, which is one of the most important functions of a digital freight car.
Digital freight car, research tests, diagnostics system, accelerometers, acceleration amplitudes, rolling surface defect, wheelset, axle box
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