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以振动筛的下横梁作为损伤结构识别的研究目标,利用计算机软件MatLab对裂纹信号进行了分析。试验证明,用AR模型对裂纹信号进行功率谱估计,可准确提取裂纹的信号特征,以实现对裂纹损伤的自动识别。
The lower cross beam of shale shaker was taken as the research target of damage structure recognition, and the crack signal was analyzed by computer software MatLab. Experiments prove that using AR model to estimate the power spectrum of the crack signal can accurately extract the signal characteristics of the crack so as to realize the automatic identification of the crack damage.