【摘 要】
：
Researches concerning structures safety improvement has increased significantly in the past decades, structural health monitoring becoming an important support in taking decision regarding the need of
【机 构】
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Faculty of Engineering,Eftimie Murgu University,Resita 320085,Romania
【出 处】
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The Third International Conference on Dynamics,Vibration and
论文部分内容阅读
Researches concerning structures safety improvement has increased significantly in the past decades, structural health monitoring becoming an important support in taking decision regarding the need of these structuress remediation.Various techniques, from visual inspection to nondestructive evaluation or vibration-based damage detection[1,2], are used.The last ones.based on signal processing, derived from structures vibration measurements, can be classified as: time domain analysis, frequency domain analysis or time-frequency domain analysis of a signal.For damage detection in structures are used changes of natural frequencies, damping ratios, flexibility or mode shapes in order to identify the damage, so frequency domain and time-frequency domain analyses of signals are often used[3].Neural network methods are also available for damage detection.
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