Method and device for obtaining wheel rail force
A technology of wheel-rail force and processing device, which is applied in the direction of measuring device, measuring force, instrument, etc.
Active Publication Date: 2011-07-06
LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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[0005] The embodiment of the present invention provides a method and device for obtaining the wheel-rail force, which is used to solve the problem in the prior art that there is no method for measuring and processing the wheel-rail force for the following double bridge roads, that is, the vertical bridge for measuring the vertical force It is composed of two bridges with a phase difference of 90 degrees, and the transverse bridge for measuring lateral force is composed of two bridges with a phase difference of 90 degrees, and the sensitivity coefficient of the vertical force bridge and lateral force bridge with the same phase varies with the angle Variations have the same functional relationship to the double bridge
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[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0044] like Figure 1a Shown is a flowchart of a method for obtaining wheel-rail force according to an embodiment of the present invention.
[0045] Step 101, obtain the outputs OAεp and OBεp of the vertical force bridge composed of two bridges with a phase difference of 90 degrees, and obtain the outputs OAεq and OBεq of a transverse force bridge composed of two bridges with a phase difference of 90 degrees , where OAεp is the original output of the vertical force...
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The invention relates to the measuring field of wheel rail force of railways, subways and urban rails, in particular to a method and a device for obtaining wheel rail force, which are used for solving the problem that no wheel rail force measuring and processing method is adopted for double bridges in the prior art. The method comprises the following steps: a detection result of the double bridges is obtained, interference between vertical force and cross force is eliminated, vertical force and cross force are computed in a synthesizing method, and the direction of the cross force is judged. The embodiment of the invention has the beneficial effects that: a vertical force bridge formed by two electrical bridges with 90-degree phase difference and a cross force bridge formed by two electrical bridges with 90-degree phase difference are realized, and the calculation of wheel rail force continuous measurement can be carried out under the condition that the sensitivity coefficient of the vertical force bridge and the cross force bridge with the same phase has the same functional relation along with the change of the angle.
Description
technical field [0001] The invention relates to the field of wheel-rail force measurement of railways, subways and urban tracks, in particular to a method and device for obtaining wheel-rail force. Background technique [0002] Wheel-rail force measurement is a basic work in the railway industry, which is related to whether the rolling stock can run safely on the track line, and has always been valued by countries all over the world. [0003] At present, in the domestic railway, subway and urban rail industries, most of the measurement of the interaction force between the wheel and the rail adopts the intermittent measurement method, and the continuous measurement method is used in foreign countries. However, due to the different technical solutions for the continuous measurement of the wheel-rail force, the corresponding wheel-rail force The calculation method is also different. [0004] In the prior art, there is no calculation method for continuous measurement using the ...
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IPC IPC(8): G01L1/00
Inventor 祖宏林李谷储高峰胡爱全焦文孙浩清王希玲
Owner LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI