基于改进CRITIC法的TBM刀具声发射信号研究

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摘要针对地下施工中TBM(Tunnel Boring Machine)刀具磨损更换频繁且缺乏有效方法对其状态进行评估问题，将声发射技术用于TBM刀具检测，以TBM模态掘进试验台为对象，采集不同磨损程度的滚刀声发射信号研究声发射单特征参量及多特征参量对滚刀磨损状态趋势评估影响，提出基于改进CRITIC声发射多特征融合刀具状态评估新方法。滚刀磨损量测试表明，改进CRITIC声发射多特征融合后所得评估值对刀具磨损信息更敏感，能有效评估及预测刀具磨损状态，可为TBM刀具现场检修、保养提供指导。

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	李宏波1
	2
	陈馈1
	2
	周建军1
	2
	张合沛1
	2
	任颖莹1
	2

关键词 ：声发射, CRITIC , 特征融合, TBM, 状态评估

Abstract：The TBM tool changes frequently and lacks effective method to evaluate the tool condition in underground construction.The acoustic emission technology is applicated to detect TBM tool.Based on TBM mode,and by acquiring acoustic emission signals of different tool wear.Researching single parameter and multi parameter acoustic emission influence hob wear trend and put a kind of improved CRITIC Method to evaluate hob wear. The disc cutter wear test showed that the improved CRITIC Method is more sensitive to the tool wear information.The new method is more efficient to evaluate and predicte tool wear，and can provide guidance for repairing and maintenance the cutting tool.

Key words： acoustic emission CRITIC feature fusion TBM condition assessment

收稿日期: 2015-04-23 出版日期: 2016-03-15

引用本文:

李宏波1,2，陈馈1,2，周建军1,2，张合沛1,2，任颖莹1,2. 基于改进CRITIC法的TBM刀具声发射信号研究[J]. 振动与冲击, 2016, 35(6): 197-202.
LI Hong-bo1,2，CHEN kui1,2，ZhOU Jian-jun1,2，ZHANG He-pei1,2，REN Ying-ying1,2. Trend analysis method for acoustic emission signals of TBM tool based on Improved CRITIC Method. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(6): 197-202.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I6/197

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