基于共振分析的发动机附件传动系统危险齿轮的确定  

Determine the Dangerous Gear in Accessory Gear System of Engine Based on Resonance Analysis

作　　者：欧阳旭靖 郭梅[2] 王建军[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191 [2]中航工业沈阳发动机设计研究所航空发动机动力传输航空科技重点实验室,沈阳110015

出　　处：《航空发动机》2016年第1期25-31,共7页Aeroengine

摘　　要：为了确定某典型发动机附件机匣齿轮系统危险齿轮,对附件机匣各齿轮进行模态计算,通过行波共振分析获得共振Campbell图,初步得到危险齿轮编号。采用等效有限元法建立齿轮系统有限元模型,计算研究齿轮系统共振特性,确定工作转速内可被激起的危险共振模态,通过应变能法确定危险齿轮从而对单齿轮分析结果进行补充。结果表明:所提出的方法和技术能够有效确定复杂附件传动系统危险齿轮,从而大幅减少设计时间,并可为试验测量和故障分析提供参考。In order to determine the dangerous gears in the accessory gear system of a typical engine, modal characteristics of each gear were calculated, the Campbell plot was drawn by traveling-wave resonance analysis, the number of dangerous gear were preliminary got. The gear system was simulated using equivalent finite element method to study the resonance characteristics of the gear system. New dangerous gears within the working speed were determined based on resonance analysis of the gear system. Dangerous gears were determined through strain energy method; the results of the single gear analysis were added. The results indicate that the method and technique can determinate dangerous gear of complex accessory gearbox system effectively, reduce the design time, provide reference for test measurement and fault analysis.

关 键 词：危险齿轮 附件机匣 共振分析 齿轮系统 单齿轮 航空发动机 

分 类 号：V232.8[航空宇航科学与技术—航空宇航推进理论与工程]