大型起重机械声发射动态监测定位方法探讨  

Discussion on Dynamic Monitoring and Positioning Method Based on Acoustic Emission for Large Crane

作　　者：何才厚 李秋锋[2] 

机构地区：[1]江西省特种设备检验检测研究院鹰潭分院,鹰潭335000 [2]无损检测技术教育部重点实验室(南昌航空大学),南昌330063

出　　处：《中国特种设备安全》2015年第5期49-52,共4页China Special Equipment Safety

基　　金：国家质检总局科技计划项目:2013zjjz180

摘　　要：为了实现对大型起重机械声发射动态监测,利用时间反转原理,将采集到的信号进行时间反转,再施加到对应传感器上作为激励,在构件中激发的信号在声源中聚集,随机获取反映起重机械损伤状态特征参数,实时监测损伤及预测评估起重机械寿命。In order to achieve monitoring acoustic emission dynamically for large crane, collected signals are time reversed by using time reversal principle, and then excite the corresponding sensors as an incentive respectively. Signals excited in the structure are focused in sound source in random access, and damage state characteristic parameters of the crane can be reflected, and real-time damage monitoring and assessment and prediction of the large crane lifecycle can be realized.

关 键 词：声发射 时间反转 定位测试 

分 类 号：X941[环境科学与工程—安全科学]