新型盾构刀具检测技术
A new detection technology of shield cutter
The shield is widely used in underground projects. The cutting-tool wear of shield machine has become a key problem that affects the engineering quality and progress. Acoustic emission(AE) as a nondestructive detection method has been widely applied in all kinds of field. Acoustic emission signal which has rich multi feature information can reflect accurately the detection member state. In the study of acoustic emission signal, How to distinguish between effective signal characteristics of acoustic emission and how to use the characteristic information to evaluate is a hot research at home and abroad. Based on the comprehensive experiment platform of rock and machine, By acquisiting emission signal of different shield cutter wear, The adaptive filter and acoustic emission detection are applied to detect the field shield cutter and use information entropy multi feature fusion technology assessment. According to the state of the database tool wear information entropy and the corresponding can clearly understand the wear condition of shield cutter.
盾构滚刀 / 声发射 / 自适应滤波 / 信息熵 {{custom_keyword}} /
shield hob / acoustic emission / adaptive filter / information entropy {{custom_keyword}} /
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