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首页> 外文会议>Conference on Sensors for Propulsion Measurement Applications >Impact detection and analysis/health monitoring system for composites
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Impact detection and analysis/health monitoring system for composites

机译：复合材料的影响检测和分析/健康监测系统

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This manuscript includes information from test evaluations and development of a smart event detection system for use in monitoring composite rocket motor cases for damaging impacts. The primary purpose of the system as a sentry for case impact event logging is accomplished through; implementation of a passive network of miniaturized piezoelectric sensors, logger with pre-determined force threshold levels, and analysis software. Empirical approaches to structural characterizations and network calibrations along with implementation techniques were successfully evaluated, testing was performed on both unloaded (less propellants) as well as loaded rocket motors with the cylindrical areas being of primary focus. The logged test impact data with known physical network parameters provided for impact location as well as force determination, typically within 3 inches of actual impact location using a 4 foot network grid and force accuracy within 25%of an actual impact force. The simplistic empirical characterization approach along with the robust / flexible sensor grids and battery operated portable logger show promise of a system that can increase confidence in composite integrity for both new assets progressing through manufacturing processes as well as existing assets that may be in storage or transportation.
机译：该稿件包括来自测试评估和开发智能事件检测系统的信息，用于监控复合火箭电机案例，用于损坏影响。通过用于案例影响事件日志记录的系统作为哨兵的系统的主要目的是通过的;小型化压电传感器的无源网络的实现，具有预定力阈值水平的记录器，以及分析软件。成功地评估了结构特征和网络校准的经验方法以及网络校准以及卸载（较少推进剂）以及装载火箭电机的测试，具有主要聚焦的圆柱区域。记录的测试影响数据具有用于冲击位置的已知物理网络参数，以及使用4英尺网络电网的强力确定，通常在3英寸的实际冲击位置内，并在实际冲击力的25％内进行高精度。简单的经验表征方法以及强大/柔性传感器网格和电池供电的便携式记录器显示了一个系统的承诺，可以通过制造过程以及可能在储存或运输的现有资产增加复合性积分的施取。

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