用户名 密 码 登 录 忘记密码 免费注册

网站会员中心 | 设为首页 | 加入收藏

 您好，欢迎光临中国轴承行业网         退出登陆

会员中心 | 设为首页 | 加入收藏

协会

统计

国外文献 > 1.轴承 > 5. 监测与诊断 > 状态监测

关键词搜索：

标 题： A Comparative Study of Helicopter Planetary Bearing Diagnosis with Vibration and Acoustic Emission Data
基于振动与声发射数据的直升机行星轴承诊断比较研究
作 者： Linghao Zhou
Fang Duan
David Mba
Elasha Faris
关键词： Helicopter main gearbox  [直升机主齿轮箱]
Planetary bearing diangosis  [ 行星轴承诊断]
Acoustic emission signal  [ 声发射信号]
Kurtogram  [ 库尔托格拉姆]
Envelope analysis  [ 信封分析]
出版年： 2017
会议名： 2017 IEEE International Conference on Prognostics and Health Management (ICPHM 2017)
2017年IEEE国际预测与健康管理会议（ICPHM 2017）
届 次：
摘 要： Planetary bearings inside a helicopter main gearbox (MGB) are key components, successful diagnosis of planetary bearing defects benefits helicopter maintenance, reducing accidents rate and increasing aircraft flightworthiness. Most widely adopted methods for bearing fault diagnosis are envelope analysis and kurtogram; both have achieved many successes in practical application. However, diagnosis of faulty planetary bearing inside a MGB can be more complicated for reasons such as extremely strong operating noise, overwhelming gear meshes and so on. In this paper, acoustic emission (AE) data was recorded in comparison with traditional vibration data from test rig built using commercial helicopter gearbox with seeded defects, diagnosis of vibration data and AE data is performed using kurtogram and envelope analysis, results showed that AE signals are more sensitive to excitations from defects and suffer less from background noises.

直升机主齿轮箱（MGB）内的行星齿轮轴承是关键部件，准确诊断行星齿轮轴承缺陷有助于直升机维护，降低事故率并提高飞行可靠性。目前最广泛采用的轴承故障诊断方法包括包络线分析和偏度图法； 两者在实际应用中都取得了许多成功。然而，由于运行噪声极强、齿轮啮合过载等问题，MGB内部行星轴承故障的诊断可能更为复杂。本文通过记录声发射（AE）数据，并与使用商用直升机齿轮箱并植入缺陷所构建的试验台获得的传统振动数据进行对比，采用克尔图和包络分析对振动数据和AE数据进行诊断。结果表明，AE信号对缺陷引起的激励更敏感，且受背景噪声影响较小。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

VIP网员

联系我们 | 登录注册 | 会员管理 | 网员服务 | 服务信息 | 广告服务 | 高薪聘请 | 法律声明 | 关于我们

京公网安备 11010202009788    京ICP备2021015424号