新型盾构刀具检测技术

李宏波;周建军;王助锋;

振动与冲击 ›› 2014, Vol. 33 ›› Issue (20) : 146-150.

PDF(2110 KB)
PDF(2110 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (20) : 146-150.
论文

新型盾构刀具检测技术

  • 李宏波1,2,周建军1,2,王助锋1,2
作者信息 +

A new detection technology of shield cutter

  • LI Hong-bo1,2,ZHOU Jian-jun1,2,WANG Zhu-feng1,2
Author information +
文章历史 +

摘要

针对声发射信号研究中声发射的有效信号特征如何区分、如何利用声发射多特征信息进行状态评判问题,以盾构岩机作用试验平台为研究背景,采集不同磨损程度的盾构滚刀声发射信号,将自适应滤波降噪及声发射检测结合用于盾构刀具检测;利用信息熵多特征融合技术评估刀具状态建立信息熵刀具磨损状态评估曲线,据刀具多特征融合后的信息熵及刀具磨损状态数据库可清楚了解盾构刀具磨损状况。

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.

关键词

盾构滚刀 / 声发射 / 自适应滤波 / 信息熵

Key words

shield hob / acoustic emission / adaptive filter / information entropy

引用本文

导出引用
李宏波;周建军;王助锋;. 新型盾构刀具检测技术[J]. 振动与冲击, 2014, 33(20): 146-150
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

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