钢丝绳断丝声发射定量检测方法研究  

Quantitative Method to Detect Wire Break in Wire Rope by Acoustic Emission Techniques

作　　者：邵永波[1,2] 于大安[1,2] 王师 朱祖铭[1,2] 尹万全 

机构地区：[1]东北大学信息科学与工程学院 [2]中国科学院沈阳金属研究所

出　　处：《东北大学学报（自然科学版）》1999年第2期130-132,共3页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金

摘　　要：采用声发射（ＡＥ）技术对钢丝绳断丝进行定量检测研究·通过波形分析确定合适的定时参数，从而将断丝事件表征为单个ＡＥ撞击信号，实现了断丝的定量化表示·通过二维图示方法选择特征参量，并根据断丝与非断丝类别的分布特点，采用多段线性分类器，以机器智能方式实现断丝的自动检测与识别·A method for quantitative detection of wire break in wire rope is developed using acoustic emission(AE) techniques. Based on AE waveform analysis,suitable timing parameters were determined,so that a wire break event can be indicated by a single AE hit. One to one correlation between wire break event and acoustic emission signature is achieved. By analysing two dimensional picture of AE events,effective features of the AE signals are selected for classification. According to distribution of AE parameters,a piecewise linear classifier is designed for automatic wire break detection.

关 键 词：声发射 断丝 检测 模式识别 钢丝绳 定量检测 

分 类 号：TG115.285[金属学及工艺—物理冶金] TB553[金属学及工艺—金属学]