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Nondestructive Damage Testing of Beam Structure Based on Vibration Response Signal Analysis

机译:基于振动响应信号分析的光束结构无损损伤测试

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摘要

Nondestructive damage-testing technology based on vibration signal analysis makes full use of the response characteristics of wave and energy. With the advantages of wide bandwidths of response frequency and high sensitivity, the nondestructive testing technology based on vibration signal analysis has a superiority in the application for the detection and characterization of structural defects, and has become one of the important methods for the nondestructive testing of structural material defects and damage. This paper presents a novel method of detection localization and quantitative analysis for local damage in beam structures, based on the response analysis of vibration signals. A damage-detection and -identification algorithm based on a unscented Kalman filter (UKF) was designed, which greatly reduces the computational workload in the process of damage identification over that in conventional methods. The method presented in this paper has significances to widen the application scope of the nondestructive testing method, and increase the recognition efficiency and effectiveness of this kind of method in engineering.
机译:基于振动信号分析无损损伤检测技术充分利用的波和能量的响应特性。与响应频率和高灵敏度的宽的带宽的优点,该无损检测技术基于振动信号分析具有用于检测和结构缺陷的表征所述应用程序的优势,并已成为对的无损检测的重要方法之一结构材料缺陷和损伤。本文提出的检测和定位在梁结构局部损伤,基于振动信号的响应分析定量分析的新方法。基于一个无迹卡尔曼滤波(UKF)甲损害检测和-identification算法被设计,大大降低了在损伤识别过,在常规方法的过程中的计算工作量。本文介绍的方法具有意义拓宽无损检测方法的应用范围,提高这种工程方法的识别效率和效益。

著录项

  • 期刊名称 Materials
  • 作者

    Xiaohao Li; Deyu Shi; Zihang Yu;

  • 作者单位
  • 年(卷),期 2020(13),15
  • 年度 2020
  • 页码 3301
  • 总页数 13
  • 原文格式 PDF
  • 正文语种
  • 中图分类 外科学;
  • 关键词

    机译:振动信号分析;无损检测;卡尔曼滤波;参数识别;

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