基于应变模态的加筋板螺栓松脱识别  

Stiffened Plate Bolts Loose Recognition Based on Strain Mode

作　　者：徐彦伟[1] 谭跃刚[1] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070

出　　处：《机械工程与自动化》2016年第2期166-167,170,共3页Mechanical Engineering & Automation

摘　　要：为研究螺栓松脱的检测识别方法,设计了带螺栓连接的硬铝合金加筋板结构,采用光纤光栅传感器测量加筋板共振时螺栓松脱前、后的应变响应,并以此应变响应为标识量来识别螺栓脱落的位置。试验结果表明:采用应变模态为标识量能够准确识别加筋板紧固件的螺栓松脱位置。Aiming at developing a detection and recognition method of bolt loosening,this paper designs a hard aluminum alloy stiffened plate structure with bolt connection,measures the strains response of the vibratory stiffened plate under healthy state and bolts loosening state with fiber bragg grating strain sensors.Strain response is used as the identification to identify the bolt loosening position.Experimental results show that the stiffened plate bolts loosening position can be accurately identified by using strain mode identification.

关 键 词：应变模态 螺栓松脱 损伤识别 加筋板 

分 类 号：V214.3[航空宇航科学与技术—航空宇航推进理论与工程] TP391.7[自动化与计算机技术—计算机应用技术]