Vertical load force system testing structure of guide-like force measurement framework and manufacturing method of vertical load force system testing structure

Abstract

The invention provides a vertical load force system testing structure of a guide-like force measurement framework and a manufacturing method of the vertical load force system testing structure. According to the manufacturing method, firstly, high-resolution load identification point areas are defined on a guide-like force measurement framework and then multiple strain gauges are pasted on each high-resolution load identification point area to form multiple groups of full bridge circuit structures; static calibration is carried out on a framework structure pasted with the strain gauges on a calibration test bed for a multi-channel loading force measurement framework and then decoupling calculation is carried out on the full bridge circuit structures one by one to search out one or more groups of bridge forming structures with the highest mutual decoupling precision or to search out one or more groups of bridge forming structures which can meet the decoupling precision requirements; andfinally, manufacturing of the force measurement framework is completed according to the finally determined bridge forming structures. By adopting the structure and the method provided by the invention, one full bridge circuit is formed at each corner of the force measurement framework, so that, on one hand, the wiring distance is shortened, and on the other hand, the number of the full bridge circuits is increased, thereby improving the testing accuracy.

Description

technical field [0001] The invention relates to a structure for testing the vertical load force system of a column-like force measuring frame of a rail vehicle. Background technique [0002] The vertical load force system of rail vehicle bogie includes heave load, roll load and torsion load. [0003] For the column-type bogies widely used in railway passenger cars, in the prior art, when the vertical load force system is analyzed for the frame structure, the beam test method is usually used, that is, the strain is attached at the connection between the frame beam and the side beam. Pieces, according to the test needs to form a full bridge circuit of floating, rolling or torsion load. This method has long circuit wiring distance, is easy to damage, and has low system test accuracy. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to: provide a kind of vertical load force system test structure of a kind of guide column type force measuring frame an...

AI Technical Summary

Problems solved by technology

This method has a long circuit wiring distance, is easy to damage, and has low system test accuracy

Images