| 基于改进CRITIC法的TBM刀具声发射信号研究 |
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| 引用本文： | 李宏波,陈 馈,周建军,张合沛,任颖莹. 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 |
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| 作者姓名： | 李宏波 陈 馈 周建军 张合沛 任颖莹 |
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| 作者单位： | 1.盾构及掘进技术国家重点实验室, 郑州 450001；
2.中铁隧道集团有限公司，河南 洛阳 471009 |
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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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| 关 键 词： | 声发射 CRITIC 特征融合 TBM 状态评估 |
Trend analysis method for acoustic emission signals of TBM tool based on Improved CRITIC Method |
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| LI Hong-bo,CHEN kui,ZhOU Jian-jun,ZHANG He-pei,REN Ying-ying. Trend analysis method for acoustic emission signals of TBM tool based on Improved CRITIC Method[J]. Journal of Vibration and Shock, 2016, 35(6): 197-202 |
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| Authors: | LI Hong-bo CHEN kui ZhOU Jian-jun ZHANG He-pei REN Ying-ying |
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| Affiliation: | 1.State Key Laboratory of Shield Machine and Boring Technology,Zhengzhou 450001,China；2.China Railway Tunnel Group Co.,Ltd.,Luoyang 471009,China |
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| 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. |
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| Keywords: | acoustic emission CRITIC feature fusion TBM ')" href=" #" >condition assessment
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