Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine

查看全文 作　　者：Shuai [1,2,4]MO;Yidu [1,2]ZHANG;Qiong [1,2]WU;Feiming [3]WANG;Shigeki [4]MATSUMURA;Haruo [4]HOUJOH

机构地区：[1]State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing 100191, China;[2]School of Mechanical Engineering & Automation, Beihang University, Beijing 100191, China;[3]AVIC Shenyang Engine Design & Research Institute,Shenyang 100015, China;[4]Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan

出　　处：《Chinese Journal of Mechanical Engineering》索引2017年第30卷第4期,共8页

基　　金：Supported by National Key Technology R&D Program(No.2014BAF08B01);Natural Science Foundation of Tianjin(Grant No.17JCQNJC04300) 摘　　要：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. 关键词：齿轮减速器 Engine 载荷分配特性星形齿轮传动系统涡扇发动机星型齿轮传动

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Load Sharing Behavior of Star Gearing Reducer for Geared Turbofan Engine

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