• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>3rd International Workshop on Structural Health Monitoring, Sep 12-14, 2001, Stanford University >Fiber-Optic Smart Sensing of Aviation Structures
【24h】

Fiber-Optic Smart Sensing of Aviation Structures

机译：航空结构的光纤智能传感

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have tested and demonstrated a fiber-optic strain sensor network for large aerospace structures in two field tests over the last two years. The sensor network is based on fiber-optic Bragg grating sensors (FBGSes). To obtain a high performance, high resolution strain sensor network, we developed a measurement system capable of determining the Bragg wavelength with an absolute accuracy better than 1pm. We have also developed a mounting tool in order to handle the fiber sensor and to achieve reproducible sensor characteristics. For the initial test, we glued the sensors onto the surface of a carbon fiber-reinforced plastic (CFRP) wing at the European Aeronautic Defence and Space (EADS) Airbus test center in Hamburg, Germany and tested them for over one year. The second test was conducted at EADS Airbus, Toulouse, France. There, we installed the FBGSes on a fuselage section in the first aircraft A 340/600 for a field test during the ground and flight test period. All the fiber-optic strain sensors were placed right next to the existing electrical strain gages and strain rosettes. During each field test, we studied the performance of the FBGSes for different load cases under different calibration tests and under stress and deflection measurements. We noted an excellent performance of the fiber-optic sensor network and very good consistency between the values of electrical strain gages and the FBGSes during all measurements. This paper presents the current results and emphasizes the lessons learned from the implementation of FBGSes in real aviation structures.
机译：在过去的两年中，我们已经在两次现场测试中测试并演示了用于大型航空航天结构的光纤应变传感器网络。传感器网络基于光纤布拉格光栅传感器（FBGSes）。为了获得高性能，高分辨率的应变传感器网络，我们开发了一种测量系统，该系统能够确定绝对高于1pm的布拉格波长。我们还开发了一种安装工具，以处理光纤传感器并实现可重现的传感器特性。对于初始测试，我们将传感器粘贴到位于德国汉堡的欧洲航空防务与航天（EADS）空中客车测试中心的碳纤维增强塑料（CFRP）机翼表面上，并进行了一年以上的测试。第二次测试是在法国图卢兹的EADS空中客车公司进行的。在那里，我们在第一架A 340/600飞机的机身部分安装了FBGS，以便在地面和飞行测试期间进行现场测试。所有的光纤应变传感器都放置在现有的电应变计和应变莲座旁边。在每个现场测试期间，我们研究了FBGS在不同的负载情况下，不同的校准测试以及在应力和挠度测量下的性能。我们注意到，在所有测量过程中，光纤传感器网络均具有出色的性能，并且电应变计和FBGSes的值之间具有很好的一致性。本文介绍了当前的结果，并强调了在实际航空结构中实施FBGSes的经验教训。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号