摘要
本文介绍了某型发动机附件机匣光谱超标的故障现象以及齿轮动应力测量和齿轮温度测量原理,通过齿轮动应力测量及齿轮温度测量,确定附件机匣内齿轮材料选择不当及离心通风器齿轮存在共振是故障的主要原因。据此提出排故措施,包括重载侧齿轮材料更换高温齿轮钢以及改进离心通风器齿轮的结构等,并对改进齿轮轴进行了动态特性分析以及动应力实测,进行了贯彻改进措施附件机匣的长试考核验证,随后在外场进行全面贯彻,使故障率大幅降低。
This paper describes the phenomenon of spectrum over standard problem of the accessory gearbox,as well as the principle of gear dynamic stress measurement and gear temperature measurement. The gear dynamic stress measurement and gear temperature measurement show that the gearbox accessories improper selection of materials and centrifugal fan gear resonance are the main reason for the failure. Accordingly, it proposes troubleshooting measures,including heavy-duty side gear shaft replacement high-temperature gear steel and improving of the structure of centrifugal fan gear and so on. The dynamic characteristics analysis and dynamic stress measurement of the improved gear shaft were carried out. The measures are carried out to improve the attachment casing long test assessment,followed by the full implementation of the field. The failure rate is significantly reduced.
作者
吴双峰
李锦花
王旭华
赵迎松
Wu Shuangfeng;Li Jinhua;Wang Xuhua;Zhao Yingsong(AVIC Shenyang Engine Design and Research Institute,Shenyang 110015,China;AVIC Key Laboratory of Power Transmission Technology on Aero-engine,Shenyang 110015,China)
出处
《航空科学技术》
2020年第8期27-35,共9页
Aeronautical Science & Technology
关键词
附件机匣
光谱超标
动应力
齿轮测温
结构改进
accessory gearbox
spectrometric over standard
dynamic stress
gear measuring temperature
structure improvement
作者简介
通信作者:吴双峰(1983-)男,硕士,工程师。主要研究方向:航空发动机传动系统。Tel:13889312607,E-mail:5894151@qq.com。
