Intelligent Monitoring System of Heavy-Haul Locomotive Wheel-Rail Force Based on Indirect Measurement Method
The dynamic wheel-rail contact force is directly related to the dynamic performance,rail vibration response and structural damage of the locomotive and vehicle system.Based on the indirect measurement method,this article proposes the technical solution of the heavy-haul locomotive wheel-rail intelligent monitoring system.The design of the rotary rail force monitoring item includes parameters such as one-series reed force and one-series springs horizontal displacement.Virtual instrument technology,embedded technology,and train communication technology has been applied.Take a certain eight-axis heavy-duty train in the middle of the train as an example.With acceleration,strain,displacement and other sensors installed under the vehicle,each sensor is calibrated.Data processing and other methods are used to calculate safety indicators such as the vertical force of the wheel track,the horizontal force of the wheel axis,and the derailment coefficient.The automatic collection,automatic processing,and automatic analysis and transmission of safety indicators provide important technical support for the intelligent and informatization of heavyhaul railways.
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