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Determination of the probability zone for acoustic emission source location in cylindrical shell structures

机译:确定圆柱壳结构中声发射源位置的概率区

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摘要

This paper presents a probabilistic framework for acoustic emission (AE) source localization in cylindrical structures. Specifically, an approach based on unscented transformation (UT) is proposed to take into account uncertainty in time of flight measurements and wave velocity and eventually estimate AE source locations together with quantitative measures of confidence associated with those estimates. Experiments are carried out on a steel pipe instrumented with an array of six embedded piezoelectric disks. Results are compared with Monte Carlo simulations by the Kullback-Leibler divergence.
机译:本文提出了圆柱形结构中声发射(AE)源定位的概率框架。具体而言,提出了一种基于无味变换(UT)的方法,以考虑飞行时间测量和波速的不确定性,并最终估算AE源位置以及与这些估算相关的置信度的定量测量。在装有六个嵌入式压电盘阵列的钢管上进行实验。通过Kullback-Leibler散度将结果与Monte Carlo模拟进行比较。

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