Test the vertical force between wheel and rail interactions after strain

Daily detection and diagnosis system of vehicle/circuit interaction As we all know, the surface roughness, scratches, etc. are important factors that cause the interaction between the vehicle and the line. The track inspection vehicle can be used to test the geometric irregularity of the line and the surface of the line. Consider There is a certain degree of flexibility in the route, coupled with the discrepancy between track inspection vehicles and heavy-duty trucks, so it is not possible to completely replace the interaction between heavy-duty trucks and lines by the interaction between track inspection vehicles and lines. relationship.

Usually because of the quality and the vehicle distance, wheelbase, etc., the unevenness generated when heavy goods vehicles pass through the line is generally larger than the track inspection car, and by these irregularities, it is possible to stimulate the trucks to float and sink. The type of vibration, and further exacerbated the deterioration of the truck's vibration performance, leading to derailment and other malignant accidents.

The Australian Railways Department is developing a monitoring and diagnostic system for routinely testing the interaction between heavy-duty trucks and lines on existing vehicles. The system selects the strain gages on the side frame of the bogie, and it is statically corrected and tries to eliminate the vertical force of the interaction between the wheel and rail after strain caused by longitudinal braking force, and then through data processing and analysis to obtain Useful information on truck vibration characteristics and interactions between trucks/lines. In this test and diagnosis system, the latest scientific and technological achievements such as GPS satellite positioning devices and network data transmission are used to determine the parameters such as the position and speed of the vehicle on the road, and timely transmitted to the monitoring and command center for the final judgment of the truck/line. Whether there is a hidden problem or not.

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