...
首页> 外文期刊>Smart Materials & Structures >Structural health monitoring using scanning laser vibrometry: III. Lamb waves for fatigue crack detection
【24h】

Structural health monitoring using scanning laser vibrometry: III. Lamb waves for fatigue crack detection

机译:使用扫描激光振动法监测结构健康:III.。兰姆波用于疲劳裂纹检测

获取原文
获取原文并翻译 | 示例
           

摘要

Guided ultrasonic waves have shown great potential for structural health monitoring. Various types of transducer can be used for actuating and sensing of these waves. This includes non-contact approaches such as optical/laser techniques. Classical laser methods usually involve high energy interferometers. The paper demonstrates that a commercial laser vibrometer, designed for vibration/modal analysis, can be used for crack detection in metallic structures. The study involves a simple fatigue test in order to initiate and grow a crack. Lamb waves generated by one bonded piezoceramic transducer were sensed using a multi-point scanning laser vibrometer. The results demonstrate the potential of laser vibrometry for simple, rapid and robust detection of fatigue cracks in metallic structures.
机译:引导的超声波已显示出用于结构健康监测的巨大潜力。各种类型的换能器可用于致动和感测这些波。这包括非接触式方法,例如光学/激光技术。经典的激光方法通常涉及高能干涉仪。本文证明,专为振动/模态分析而设计的商用激光测振仪可用于金属结构的裂缝检测。该研究涉及一个简单的疲劳测试,以引发和扩展裂纹。使用多点扫描激光振动计感测一个键合压电陶瓷换能器产生的兰姆波。结果表明,激光振动测定技术可用于简单,快速和可靠地检测金属结构中的疲劳裂纹。

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