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相关概念视频

Discrete Fourier Transform01:15

Discrete Fourier Transform

275
The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...
275
Beams with Unsymmetric Loadings01:17

Beams with Unsymmetric Loadings

119
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
119

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最佳的传感器放置用于基于振动的损害定位使用传输功能的功能.

Ilias Zacharakis1, Dimitrios Giagopoulos2

  • 1Department of Mechanical Engineering, University of Western Macedonia, Bakola & Sialvera, 50100 Kozani, Greece.

Sensors (Basel, Switzerland)
|March 13, 2024
PubMed
概括

本研究提出了一种使用振动分析进行最佳传感器放置的新方法. 它确定了用于损坏检测的最佳传感器组合,改进了结构健康监测.

关键词:
检测损坏检测损坏的检测.损害局部化 损害局部化传感器的位置 传感器的位置传输功能的传输率函数基于振动的优化优化

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科学领域:

  • 结构健康监测 结构健康监测
  • 机械工程 机械工程
  • 振动分析 振动分析

背景情况:

  • 传统的传感器放置方法专注于单个传感器的优化.
  • 现有的技术往往依赖于模式信息,而这种信息的获取可能很复杂.
  • 有需要的方法,优化传感器 * 组合 * 损坏定位.

研究的目的:

  • 开发一种最佳的传感器放置方法,用于基于振动的损害定位.
  • 提出一种新的方法,以确定传感器位置的最佳*组合*.
  • 提高损害检测框架的效率和有效性.

主要方法:

  • 使用基于输出加速度信号的传输函数.
  • 整合一个现有的损害检测框架.
  • 通过模拟损坏场景评估所有可能的传感器位置组合.

主要成果:

  • 该方法有效地提供最佳的传感器位置组合.
  • 传感器组合根据其灵敏度和有效性进行排名.
  • 该方法利用仅输出信息,简化了测试程序.

结论:

  • 提出的方法提供了一种有效的方法来确定最佳的传感器组合,以定位损坏.
  • 这种方法通过提高损害检测能力来增强结构健康监测.
  • 使用传输函数和模拟损坏场景提供了一个强大的评估框架.