A new detection technology of shield cutter

LI Hong-bo;ZHOU Jian-jun;WANG Zhu-feng;

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (20) : 146-150.

PDF(2110 KB)
PDF(2110 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (20) : 146-150.
论文

A new detection technology of shield cutter

  • LI Hong-bo1,2,ZHOU Jian-jun1,2,WANG Zhu-feng1,2
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Abstract

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.

Key words

shield hob / acoustic emission / adaptive filter / information entropy

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LI Hong-bo;ZHOU Jian-jun;WANG Zhu-feng;. A new detection technology of shield cutter[J]. Journal of Vibration and Shock, 2014, 33(20): 146-150
PDF(2110 KB)

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