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Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine

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文摘 Load sharing behavior is very important for power-split gearing system, star gearing reducer as a new type and special transmission system can be used in many industry fields. However, there is few literature regarding the key multiple-split load sharing issue in main gearbox used in new type geared turbofan engine. Further mechanism analysis are made on load sharing behavior among star gears of star gearing reducer for geared turbofan engine. Comprehensive meshing error analysis are conducted on eccentricity error,gear thickness error, base pitch error, assembly error, and bearing error of star gearing reducer respectively. Floating meshing error resulting from meshing clearance variation caused by the simultaneous floating of sun gear and annular gear are taken into account. A refined mathematical model for load sharing coefficient calculation is established in consideration of different meshing stiffness and supporting stiffness for components. The regular curves of load sharing coefficient under the influence of interactions,single action and single variation of various component errors are obtained. The accurate sensitivity of load sharing coefficient toward different errors is mastered. The load sharing coefficient of star gearing reducer is 1.033 and the maximum meshing force in gear tooth is about 3010 N. This paper provides scientific theory evidences for optimal parameter design and proper tolerance distribution in advanced development and manufacturing process,so as to achieve optimal effects in economy and technology.
来源 Chinese Journal of Mechanical Engineering ,2017,30(4):796-803 【核心库】
DOI 10.1007/s10033-017-0096-2
关键词 Geared turbofan engine ; GTF engine ; Aero-turbofan engine ; Star gearing reducer ; Load sharing behavior
地址

1. Beihang University, State Key Laboratory of Virtual Reality Technology and Systems, Beijing, 100191  

2. AVIC Shenyang Engine Design & Research Institute, Shenyang, 100015  

3. Precision and Intelligence Laboratory, Tokyo Institute of Technology, Japan, Yokohama, 226-8503

语种 英文
文献类型 研究性论文
ISSN 1000-9345
学科 机械、仪表工业
基金 Supported by National Key Technology R&D Program ;  天津市自然科学基金
文献收藏号 CSCD:6038744

参考文献 共 24 共2页

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