| 金属管裂纹声发射电磁激发试验研究 |
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| 引用本文： | 张晓涛,李建中,唐力伟,王平,王晓明.金属管裂纹声发射电磁激发试验研究[J].压电与声光,2014,36(4):560-563. |
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| 作者姓名： | 张晓涛 李建中 唐力伟 王平 王晓明 |
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| 作者单位： | (1.军械工程学院 火炮工程系，河北 石家庄 050003；2.中国华阴兵器试验中心，陕西 华阴 714200；3.63981部队，湖北 武汉 430311) |
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| 基金项目： | 军队科研基金资助项目([2011]107) |
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| 摘 要： | 针对电磁激发实现身管裂纹检测的问题,对电磁激发原理及实现进行深入分析,采用大容量高压电容放电方式,在金属管上实现裂纹声发射电磁激发试验。通过对有、无裂纹试件,在不同激发电压下采集信号的频域对比分析,获得了金属管裂纹的声发射激发规律,为常态下火炮身管裂纹的声发射检测提供了基础。
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| 关 键 词： | 电磁声发射 脉冲放电 身管裂纹 功率谱 |
The Experiment Research of Electromagnetic Acoustic Emission Excitation on Metal Pipe Crack |
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| ZHANG Xiaotao,LI Jianzhong,TANG Liwei,WANG Ping and WANG Xiaoming.The Experiment Research of Electromagnetic Acoustic Emission Excitation on Metal Pipe Crack[J].Piezoelectrics & Acoustooptics,2014,36(4):560-563. |
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| Authors: | ZHANG Xiaotao LI Jianzhong TANG Liwei WANG Ping and WANG Xiaoming |
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| Affiliation: | (1.Dept.of Artillery Engineering,Ordnance Engineering College,Shijiazhuang 050003,China;2.China Huayin Ordnance Test Centre,Huayin 714200,China;3.63981 Troops,Wuhan 430311,China) |
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| Abstract: | Aiming at electromagnetic excitation acoustic emission for barrel crack detecting,the principle and implementation of electromagnetic acoustic emission was analyzed in detail.The excitation experiment of acoustic emission of metal pipe crack was carried on by a large capacity and high voltage capacitor discharge method.Acoustic emission signals was collected on cracks and no crack specimens under different excitation voltages;then the signals were comparative analyzed in frequency domain.The law of electromagnetic excitation acoustic emission of metal pipe crack was obtained which provided a basis for the barrel crack detection by acoustic emission under normal. |
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| Keywords: | electromagnetic acoustic emission pulse discharge barrel crack power spectrum |
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