稿件编号:20150110
申珂楠,赵海龙,丁馨曾,李明.声发射技术在木材加工领域的应用[J].世界林业研究,2015,28(1):56~60
声发射技术在木材加工领域的应用
Application of Acoustic Emission in Wood Processing
投稿时间:2014-06-27  修订日期:2014-09-18
DOI:10.13348/j.cnki.sjlyyj.2015.01.008
中文关键词:  声发射技术  木材加工  木材干燥  无损检测  LabView
英文关键词:acoustic emission  wood processing  wood drying  non-destructive testing  LabView
基金项目:国家自然科学基金资助项目(31100424);云南省教育厅科学研究基金(2013J018)
作者单位E-mail
申珂楠 西南林业大学机械与交通学院, 昆明653224  
赵海龙 西南林业大学机械与交通学院, 昆明653224  
丁馨曾 西南林业大学机械与交通学院, 昆明653224  
李明 西南林业大学机械与交通学院, 昆明653224 swfu_lm@swfu.edu.cn 
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中文摘要:
      作为一种主动无损检测方式,声发射技术通过分析被测物体内部因能量变化所引发的弹性波的特征,判断物体内部损伤程度并确定损伤位置。声发射技术为木材加工过程应力监测提供了一种主动无损检测模式,但受木材自身各向异性等特点的限制,目前声发射技术在木材工业中的应用尚处于探索阶段。为此,文中重点介绍了目前声发射技术在木材切削加工、木材及木质结构、木材力学性能、木材干燥过程等木材加工过程的应用现状,并在此基础上根据木材声发射信号特点,提出一种基于LabView及高速采集设备的木材干燥过程声发射监测系统设计方案。
英文摘要:
      As an active non-destructive testing method, acoustic emission is adopted to determine the extent of damage inside an object as well as the damage location by analyzing the characteristics of the elastic wave within an object caused by internal energy changes.Acoustic emission provides an active non-destructive testing mode for the monitoring of wood processing stress. However, limited by the anisotropic characteristics of wood itself, the application of acoustic emission technology in wood industry is still at the exploratory stage. Therefore, this article focused on the current application of acoustic emission technology in wood cutting, wood and wooden texture structure, mechanical properties of wood, wood drying process, etc. On this basis, the design plan for acoustic emission monitoring system over wood drying process was proposed based on LabView and high-speed capture devices according to the wood acoustic emission signal characteristics.
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