Research on load sharing mechanism of star gear trains for GTF engine

MO Shuai; ZHANG Yi-du; WU Qiong; WANG Fei-ming

doi:10.13224/j.cnki.jasp.2016.03.030

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Research on load sharing mechanism of star gear trains for GTF engine

更新时间：2026-07-07

- Research on load sharing mechanism of star gear trains for GTF engine
- Vol. 31, Issue 3, Pages: 763-768(2016)
- 作者机构：
  
  1. 北京航空航天大学虚拟现实技术与系统国家重点实验室,北京,100191
  2. 北京航空航天大学机械工程及自动化学院,北京,100191
  3. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2016.03.030
  CLC：
- Published：2016
- 稿件说明：
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莫帅, 张以都, 吴琼, 王飞鸣. GTF发动机星形传动系统多分流均载机理研究[J]. 航空动力学报, 2016, 31(3): 763-768.

doi: 10.13224/j.cnki.jasp.2016.03.030
莫帅, 张以都, 吴琼, 王飞鸣. GTF发动机星形传动系统多分流均载机理研究[J]. 航空动力学报, 2016, 31(3): 763-768. DOI： 10.13224/j.cnki.jasp.2016.03.030.

doi: 10.13224/j.cnki.jasp.2016.03.030 DOI：

摘要

为了揭示GTF(geared turbofan)发动机星形传动系统星轮载荷分配机理

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啮合误差分析

考虑了中心轮同时浮动导致的啮合侧隙变化而引起的浮动啮合误差

建立了针对功率流动闭环特征的各构件角位移协调的精细化均载系数计算模型

计算得到了考虑位移协调和不考虑位移协调的均载系数分别为1.0515和1.0452

获得了相应的均载特性曲线

为设计上确定均载系数、工艺上合理分配及控制公差提供科学依据.

Abstract

In order to reveal the mechanism of loading sharing among star gears of star gear trains in geared turbofan(GTF) engine

a meshing error analysis was conducted on the eccentricity error

gear thickness error

base pitch error

assembly error

and bearing manufacturing error of gear components of the star gear trains respectively

and the floating meshing error resulting from meshing clearance variation caused by the simultaneous floating of sun gear and annular gear was considered. A refined mathematical model of loading sharing coefficient calculation was established in consideration of displacement compatibility

the calculated load sharing coefficient of two condition was 1.0505 and 1.0452

and the characteristic curve of load sharing was obtained

providing a scientific theory evidence for proper tolerance distribution and control in design and process.

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Related Institution

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