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Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine
Alternative TitleLoad Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine
Mo Shuai1; Zhang Yidu1; Wu Qiong1; Wang Feiming3; Matsumura Shigeki2; Houjoh Haruo2
2017
Source PublicationCHINESE JOURNAL OF MECHANICAL ENGINEERING
ISSN1000-9345
Volume30Issue:4Pages:796-803
AbstractLoad 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.
Other AbstractLoad 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.
KeywordGeared turbofan engine GTF engine Aero-turbofan engine Star gearing reducer Load sharing behavior
Indexed ByCSCD
Language英语
Funding Project[National Key Technology RD Program] ; [Natural Science Foundation of Tianjin]
CSCD IDCSCD:6038744
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/157776
Collection中国科学院金属研究所
Affiliation1.北京航空航天大学
2.Tokyo Institute Technol, Precis & Intelligence Lab, Yokohama, Kanagawa 2268503, Japan
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Mo Shuai,Zhang Yidu,Wu Qiong,et al. Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING,2017,30(4):796-803.
APA Mo Shuai,Zhang Yidu,Wu Qiong,Wang Feiming,Matsumura Shigeki,&Houjoh Haruo.(2017).Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine.CHINESE JOURNAL OF MECHANICAL ENGINEERING,30(4),796-803.
MLA Mo Shuai,et al."Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine".CHINESE JOURNAL OF MECHANICAL ENGINEERING 30.4(2017):796-803.
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