| 某型飞机飞行载荷疲劳试验过程中的声发射监测 |
| |
| 引用本文： | 冯剑飞,邬冠华,耿荣生,吴伟.某型飞机飞行载荷疲劳试验过程中的声发射监测[J].无损检测,2008,30(8). |
| |
| 作者姓名： | 冯剑飞 邬冠华 耿荣生 吴伟 |
| |
| 作者单位： | 冯剑飞,邬冠华,吴伟,FENG Jian-Fei,WU Guan-Hua,WU Wei(无损检测技术教育部重点实验室,南昌航空大学,南昌,330063);耿荣生,GENG Rong-Sheng(北京航空工程技术研究中心,北京,100076) |
| |
| 摘 要： | 介绍了某型飞机全尺寸机体飞行载荷疲劳试验过程中对关键部件(包括不可接近部件)疲劳损伤的声发射(AE)实时监测技术。在强冲击、高振动背景下,利用基于时间、空间、幅度或能量滤波等多种信号处理方式,对预处理后的AE信号以趋势分析为主,多参数分析综合验证,另辅以其它方法(包括波形分析),对一些关键部位的健康状态进行AE实时在线监测。成功预报了机翼对接区域某螺栓孔夹层裂纹的萌生,为保证机体飞行载荷疲劳试验顺利进行起到了重要作用。
|
| 关 键 词： | 声发射检测 飞机 飞行载荷 疲劳试验 趋势分析 |
AE Monitoring During Aircraft Flight Loading Conditions Fatigue Test |
| |
| FENG Jian-Fei,WU Guan-Hua,GENG Rong-Sheng,WU Wei.AE Monitoring During Aircraft Flight Loading Conditions Fatigue Test[J].Nondestructive Testing,2008,30(8). |
| |
| Authors: | FENG Jian-Fei WU Guan-Hua GENG Rong-Sheng WU Wei |
| |
| Affiliation: | 1(1. Ministry of Education Key Laboratory on Nondestructive Test; Nanchang Hangkong University; Nanchang 330063; China; 2. Beijing Aeronautical Technology Research Center; Beijing 100076; China); |
| |
| Abstract: | The technology of acoustic emission(AE) real time monitoring the critical structures (including inaccessible components) during aircraft flight loading conditions fatigue test was introduced. In a noise background due to severe shock and vibration, first of all, AE signals were pre-processed based on time filtering, amplitude filtering, and energy filtering as well as based on spatial filtering techniques. After acquiring the pre-processed AE signal, we adopted a new AE signal analysis principle that gave p... |
| |
| Keywords: | Acoustic emission testing Aircraft Flight load Fatigue test Trend analysis |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
