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集成的MUSIC阵列用于复杂复合结构中的高精度损伤诊断.

Fei Zheng1, Shenfang Yuan1, Qiuhui Xu1

  • 1Research Center of Structural Health Monitoring and Prognosis, State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China.

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概括
此摘要是机器生成的。

本研究引入了一个集成的多重信号分类 (MUSIC) 阵列,用于精确的损伤成像复杂的复合结构. 新方法提高了飞机结构健康监测的准确性和可靠性.

关键词:
复杂的复合结构结构复杂的复合结构.一致性控制的控制是一致性控制.损害局部化损害的局部化焦点补偿算法 焦点补偿算法集成的音乐阵列.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 航空航天工程 航空航天工程
  • 结构健康监测 结构健康监测

背景情况:

  • 基于引导波 (GW) 的多重信号分类 (MUSIC) 损坏成像为复合结构提供了高分辨率.
  • 挑战包括传感器性能变化,电线重量,复杂几何形状中的信号衰减,以及由于手动放置和异构性而导致的相位错误.
  • 这些问题降低了飞机应用中的成像准确性和长期传感器可靠性.

研究的目的:

  • 为诊断复杂的复合材料损伤提出一个高精度的集成MUSIC阵列.
  • 为应对具有复杂结构的材料损伤成像方面的挑战.
  • 为了提高准确性,减轻重量,并提高复杂结构配置的适应性.

主要方法:

  • 采用阻抗曲线选和表面安装联合固化技术来管理传感器性能变化,增强布局统一性和改善长期稳定性.
  • 在集成的MUSIC设计中开发了一个焦点补偿算法,以提高精度,最大限度地减轻重量,并适应复杂结构.
  • 在复杂的复合材料翅膀盒段上实验验验证了该方法.

主要成果:

  • 集成的MUSIC阵列有效地管理传感器性能变化,并改善布局统一性.
  • 焦点补偿算法提高了复杂结构的成像精度和适应性.
  • 实验验证表明,在定位撞击损伤时,机翼箱片段的最大误差为2厘米.

结论:

  • 拟议的高精度集成MUSIC阵列有效地克服了复合材料损坏诊断常规方法的局限性.
  • 该方法为复杂的复合材料飞机结构中的结构健康监测提供了可靠和准确的解决方案.
  • 这项技术显着有望通过精确的损坏定位来提高飞机安全和维护.