A method and system for calibrating the load of shaft components of an aero-engine

Abstract

The invention discloses a method and system for calibrating the load of shaft parts of an aero-engine. The load calibration method of the shaft parts of the aero-engine includes: step 1: preset test purpose, and set the preset loading load under different load conditions according to the preset test purpose; step 2: respectively pass the test method and the calculation analysis method Obtain the stress and strain values, and obtain the load correction factor; Step 3: Correct the preset loading load, so as to obtain the corrected loading load; Step 4: Obtain the stress and strain values ​​of the shaft parts to be measured, and judge the obtained stress and strain values Whether it is within the preset error; Step 5: Repeat steps 2 to 4 until the judgment result is yes. In the load calibration system of the shaft parts of the aero-engine of the present invention, the calibration of each sub-load is carried out first, and then the calibration of the common loading of each load is calibrated, which has strong operability and high degree of automation, and improves the performance of the main shaft of the aero-engine. Test the loading accuracy of complex loads.

Description

technical field [0001] The invention relates to the technical field of structural strength tests, in particular to a load calibration method for shaft parts of an aero-engine and a load calibration system for shaft parts of an aero-engine. Background technique [0002] The shaft parts of the engine are subjected to complex forces. The main assessments in the test are the main torque, axial force, vibration torque and rotational bending moment load. The test loads are all indirectly applied to the test piece. Although from the perspective of the mechanical design of the tester, the mutual interference between the loads is minimized, but under the action of high-frequency loads, it is affected by factors such as the inertial force of the loading actuator, uneven material defects of the tester, uneven assembly differences, and self-weight. , it is impossible to obtain the true value of each load transmitted by the four loads to the test piece, and the relationship between the o...

AI Technical Summary

Problems solved by technology

Although from the perspective of the mechanical design of the tester, the mutual interference between the loads is minimized, but under the action of high-frequency loads, it is affected by factors such as the inertial force of the loading actuator, uneven material defects of the tester, uneven assembly differences, and self-weight. , it is impossible to obtain the true value of each load transmitted by the four kinds of loads to the test piece, and the relationship between the output force of the corresponding loading actuator

This poses many problems for accurate loading of test loads

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