Method for directly measuring bearing force based on structure micro-strain

Abstract

The invention relates to a method for directly measuring a bearing force based on structure micro-strain, belonging to the technical field of mechanical measurement. The method comprises the following steps: building a finite element model of a bearing, performing the statics analysis on the bearing, confirming the installing position of a strain gauge and initially establishing the functional relationship between the strain and the load at each installing position of strain gauge; installing a bearing force measuring system on the bearing and establishing the functional relationship between the strain and the load of the strain gauge; and finally, realizing the direct measurement on the bearing force by using a direct measuring system for bearing force. According to the method, the functional relationship between the structure strain and the bearing force is established, thereby achieving a direct measuring method for bearing force and solving the problem of accurately measuring the bearing force in real time.

Description

technical field [0001] The invention relates to a method in the technical field of mechanical measurement, in particular to a method for directly measuring bearing force based on structural micro-strain. Background technique [0002] The measurement of bearing force is of great value in engineering applications. At present, the standard for measuring the quality of shafting alignment is that the loads of all bearings in the shafting system are within the allowable range, and the loads of each bearing are distributed as evenly as possible. The comparison of theoretically calculated values ​​is easy to do, but the comparison of actual measured values ​​is still not easy to do at present. It can be seen that the actual measurement of the shafting is very important for the quality evaluation of the shafting alignment, and it also has important practical significance for improving the shafting alignment process. [0003] After searching the literature of the prior art, it is fou...

AI Technical Summary

Problems solved by technology

This technology can use relatively simple measuring equipment to directly measure the bearing force, but this method has the following disadvantages: first, the measurement accuracy is affected by the installation accuracy and position of the hydraulic jack; The same preparation time is required; third, there are errors caused by human factors in the measurement process

Fourth, the real-time performance is poor; fifth, each bearing can only be measured separately, and several bearings cannot be measured at the same time; sixth, the use is limited by the surrounding environment, etc.

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