航空发动机弹支-测力环双向轴向力测试方法  

Measurement method of biaxial axial force of aero-engine elastic support and force-measuring ring

作　　者：李洪美 欧阳运芳 LI Hongmei;OUYANG Yunfang(Commercial Aircraft Engine Company Limited,Aero Engine Corporation of China,Shanghai 201306,China)

机构地区：[1]中国航空发动机集团有限公司商用航空发动机有限责任公司,上海201306

出　　处：《航空动力学报》2022年第7期1413-1424,共12页Journal of Aerospace Power

摘　　要：为满足某型航空发动机三支点推力轴承轴向力测试要求,提出了弹支轴向力传感器和测力环并行测量方法和双向轴向力组合标定方法,给出了弹支轴向力传感器测量原理,开展了弹支轴向力标定仿真分析和试验研究,给出了中央传动齿轮箱(IGB)和棒轴承对标定结果的影响,并与发动机测力环测试结果进行了对比,研究表明:弹支轴向力传感器输出受安装位置和对象影响较大,有未装配IGB和棒轴承的标定数据偏差分别可达73.4%和17.8%,按发动机实际装配关系进行标定组件装配才能提高测量精度。发动机实测结果表明:弹支轴向力传感器多通道全桥取均值的测量方法和测力环轴向力数据趋势一致,由此验证提出的双向弹支轴向力测试方法具有很高的工程应用价值。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.

关 键 词：推力轴承 弹支 测力环 双向轴向力测试 标定试验 

分 类 号：V215[航空宇航科学与技术—航空宇航推进理论与工程]