| Citation: | LI Hongmei，OUYANG Yunfang.Measurement method of biaxial axial force of aero⁃engine elastic support and force⁃measuring ring［J］.Journal of Aerospace Power，2022，37（7）：1413‑1424. doi: 10.13224/j.cnki.jasp.20220086
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In order to meet the test requirements of axial force for three fulcrum thrust bearings of a certain aero⁃engine，the parallel measurement method of the elastic support axial force sensor and the force⁃measuring ring and a combined calibration method of the bidirectional axial force were proposed.The measuring principle of the axial force sensor of the elastic support was given，the simulation analysis and calibration experiment of the axial force of the elastic support were carried out，the influences of intermediate gear box （IGB） and rod bearing on the calibration results were given and compared with the engine force⁃measuring ring test results.Research showed that the output of the elastic support axial force sensor was greatly affected by the installation position and object，with calibration data deviations of up to 73.4% and 17.8% for unassembled IGB and rod bearings，and the assembly of the calibration components according to the actual assembly relationship of the engine can improve the measurement accuracy.The measured results of the engine showed that the trend of the measurement method of multi⁃channel full bridge mean of elastic support axial force sensor was consistent with the axial force data obtained from the force⁃measuring ring，verifying that the method of measuring the axial force of the bidirectional elastic supports had a high value of engineering application.
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