Ground monitoring method for dangerous condition in heavy-load train operation
A technology for heavy-duty trains in a dangerous state. It is used in railway vehicle shape measuring devices, measuring devices, transportation and packaging, etc. It can solve problems such as instability identification, short monitoring area length, and inability to monitor wheel-rail forces, and achieve guaranteed accuracy. and reliability, high accuracy of data analysis, and low cost of testing
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[0027] figure 1 Shown, a kind of specific embodiment of the present invention is, a kind of ground monitoring method of heavy-duty train running dangerous state, and its steps are:
[0028] A. Arrange strain flower groups on the straight single-side rail 10 of the railway track with 15 consecutive spans (the rail between two adjacent sleepers 4 is one span), and arrange 3 sets of vertical wheel-rail force measuring devices on the rail waist of each span Strain rosettes, three sets of strain rosettes for measuring lateral wheel-rail force are arranged on the edge of the rail bottom of each span to form a strain test module; the strain test module tests the vertical wheel-rail force and lateral force of track test point 2 when the train passes by. Wheel-rail force signal and its corresponding time signal;
[0029] B. The vertical wheel-rail force and the lateral wheel-rail force signal and the corresponding time signal of the track test point measured in step A are amplified an...
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