| 基于声发射原理的螺栓连接状态辨识方法研究 |
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| 引用本文： | 王怡,王宁,卢萍,龙林.基于声发射原理的螺栓连接状态辨识方法研究[J].声学技术,2010,29(5):453-456. |
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| 作者姓名： | 王怡 王宁 卢萍 龙林 |
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| 作者单位： | 1. 西南科技大学土木工程学院,四川绵阳,621010;绵阳职业技术学院,四川绵阳,621000
2. 西南科技大学土木工程学院,四川绵阳,621010 |
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| 基金项目： | 国家自然科学联合基金资助项目，绵阳市自然科学基金资助项目 |
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| 摘 要： | 振动环境中螺栓连接结构会发生碰摩现象,产生声发射信号。利用声发射参数分析方法对声发射检测信号进行时域分析,结果表明：振铃计数率随振动台加速度的提高而提高;螺栓连接结构在碰摩作用下产生出的能量与施加给螺栓的预紧扭矩的取值呈现一定的规律性。基于上述结果可以利用声发射进行螺栓连接结构的状态辨识。
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| 关 键 词： | 声发射 螺栓连接构件 碰摩信号 参数分析 |
| 收稿时间： | 2009/9/5 0:00:00 |
| 修稿时间： | 2009/12/15 0:00:00 |
The study of identifying the state of bolted joint structure based on acoustic emission principle |
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| WANG Yi,WANG Ning,LU Ping and LONG Lin.The study of identifying the state of bolted joint structure based on acoustic emission principle[J].Technical Acoustics,2010,29(5):453-456. |
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| Authors: | WANG Yi WANG Ning LU Ping and LONG Lin |
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| Affiliation: | WANG Yi1,2,WANG Ning1,LU Ping1,LONG Lin1(1.School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China,2.Mianyang Professional Technology Institute,Mianyang 621000,China) |
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| Abstract: | The acoustic emission signal occurs in vibration environment when the contact-rubbing phenomenon happens in bolted joint structure.By using AE parameters analytical method to make time-domain analysis of testing AE signals,the results show that the ring count rate increases obviously with the increase of shaker acceleration,and that a certain degree of regularity appears between the energy generated by contact-rubbing of bolted joint structure and the selection of pre-tightening torque on the bolt.Based on ... |
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| Keywords: | acoustic emission bolted joint components rubbing signal parametric analysis |
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