| GTF发动机星形传动系统多分流均载机理研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 莫帅 张以都 吴琼 王飞鸣 |
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| 作者单位： | 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; |
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| 基金项目： | 航空科学基金(20130451010);国家科技支撑计划(2014BAF08B01);国家科技重大专项(2013ZX04001061) |
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| 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.
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| 关 键 词： | GTF发动机 星形传动系统 均载 位移协调 功率分流 |
| 收稿时间： | 7/5/2014 12:00:00 AM |
Research on load sharing mechanism of star gear trains for GTF engine |
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| MO Shuai,ZHANG Yi-du,WU Qiong and WANG Fei-ming.Research on load sharing mechanism of star gear trains for GTF engine[J].Journal of Aerospace Power,2016,31(3):763-768. |
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| Authors: | MO Shuai ZHANG Yi-du WU Qiong and WANG Fei-ming |
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| Institution: | 1. State Key Laboratory of Virtual Reality Technology and Systems, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;2. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;3. Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China |
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| 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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| Keywords: | geared turbofan engine star gear trains load sharing displacement compatibility power split |
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