Spot inspection indicates that the welding cracks can be evaluated exactly by the location feature of derivative MMM signal.
现场检测表明，利用一阶微分处理后的磁记忆信号定位特征，可准确地对焊接裂纹进行检测。
Based on genetic neural network and modal strain energy, a two-stage method for detecting diagonal cracks is proposed to identify the location, Angle and depth of diagonal cracks in beams.
基于遗传神经网络与模态应变能，提出了一种斜裂缝两阶段诊断方法，识别梁体中斜裂缝的位置、角度和深度。
The manufactured defects on the inside of the drilling collar as stress concentration location play an important part in the initiation of the cracks.
工件内表面存在刀痕等机加工缺陷，造成应力集中促进了裂纹的形式。
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