考虑齿轮位移协调的2级星形传动多分流均载研究

研究了航空发动机二级星形传动系统大小星轮载荷分配机理，针对所有齿轮的偏心误差、齿厚误差、基节误差、安装误差，轴承制造误差等分别进行了当量角度啮合误差分析，考虑了太阳轮和内齿圈同时浮动导致的啮合侧隙变化而引起的浮动啮合误差，得到了两级啮合线上的综合角度啮合误差，建立了针对二级4路功率分流特征的各齿轮转角位移协调的精细化均载系数计算模型，获得了多分流多级系统的均载系数和均载特性曲线，得到了太阳轮和内齿圈的浮动规律，为航空制造上确定均载系数、工艺上合理分配及控制公差提供科学依据。

Study on Multiple-split Load Sharing of 2-Stage Star Gearing System Based on Gears Displacement Compatibility

Conducting a further analysis on multiple-split loading sharing among star gears of 2-stage star gearing system in Aero-engine, and a meshing error analysis on the eccentricity error, gear thickness error, base pitch error, assembly error, and bearing manufacturing error of gear components of the star gear train respectively, and considering the floating meshing error resulting from meshing clearance variation caused by the simultaneous floating of sun gear and annular gear, this research establishes a refined mathematical model of 2-stage multiple-split loading sharing coefficient calculation in consideration of displacement compatibility, obtains the regular curves of the load sharing coefficient, which provides scientific theory evidence for proper tolerance distribution and control in design and process.