Review of Acoustic Emission Source Mechanisms on Large Movable Structures

David E. Kosnik

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Review of Acoustic Emission Source Mechanisms on Large Movable Structures

机译：大型活动结构声发射源机理研究进展

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This paper reviews and compares three case studies involving acoustic emission (AE) monitoring of anomalous noises on large movement structures. In particular, probable source mechanisms for the various audible noises observed on the structure and investigated by AE and other measurements are identified and discussed. The three case studies include a movable stadium roof and two movable bridges, one bascule-type and one swing-type. The stadium roof and bascule bridge both showed AE correlated with similar stick-slip behaviors, albeit on two very different mechanisms. The swing bridge showed two distinct noise sources, each associated with different aspects of bridge motion.

机译：本文回顾并比较了三个案例研究，其中涉及声发射（AE）监视大型运动结构上的异常噪声。特别是，确定并讨论了在结构上观察到的各种声音噪声的可能的源机制，并通过AE和其他测量方法进行了研究。这三个案例研究包括一个可移动的体育场屋顶和两个可移动的桥，一个为Basculal型，另一个为Swing型。体育场的屋顶和开启桥都显示出AE与类似的粘滑行为有关，尽管这有两种非常不同的机制。旋转桥显示了两个不同的噪声源，每个噪声源都与桥运动的不同方面相关。

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《Journal of acoustic emission》 |2017年第2017期|S1-S9|共9页
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David E. Kosnik;
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Review of Acoustic Emission Source Mechanisms on Large Movable Structures

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