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首页> 外文会议>Conference on Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Composites III; 20040316-20040317; San Diego,CA; US >Embedded Fiber Optics for Structural Health Monitoring of Composite Motor Cases
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Embedded Fiber Optics for Structural Health Monitoring of Composite Motor Cases

机译：嵌入式光纤用于复合电机壳体的结构健康监测

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摘要

A fiber optic system intended to perform Structural Health Monitoring (SHM) of compo site motor cases has been investigated. The method described here allows for commercial-of-the-shelf (COTS) optical fiber to be integrated into a cylindrical composite motor case prior to cure. The fiber requires no pr -processing before it can be placed inside the composite material. This allows the fiber to act as a distributed sensor not a point sensor as is the case with Bragg gratings and etalons. The distributed nature of the sensor also allows the output data to be naturall multiplexed without the n eed for complex software or hardware interfaces. After cure the optical fiber can be interrogated to determine a base-line scan of the motor. Subsequent scans can be taken of the motor to determine if damage of a sufficient nature has occurred that would equire further investigation or retiring of the motor. In this study optimum wind patterns and proper placement of the optical fiber was investigated. In addition cost reductions of the instrumentation and the practicality of optical fiber egress options ere undertaken.
机译：已经研究了一种旨在对现场汽车箱进行结构健康监测（SHM）的光纤系统。此处描述的方法允许在固化之前将商用（COTS）光纤集成到圆柱形复合电机外壳中。在将纤维放入复合材料内部之前，无需进行任何预处理。这使光纤可以充当分布式传感器，而不是像布拉格光栅和标准具那样的点传感器。传感器的分布式特性还允许对输出数据进行自然多路复用，而无需复杂的软件或硬件接口。固化后，可以查询光纤以确定电机的基线扫描。随后可以对电动机进行扫描，以确定是否发生了足以对电动机进行进一步调查或淘汰的足够性质的损坏。在这项研究中，研究了最佳风型和光纤的正确放置。此外，还降低了仪器的成本，并降低了光纤出口选择的实用性。

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