| 固体药柱的超声特征扫描成像检测 |
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| 引用本文： | 陆铭慧,王海芳,陈以方.固体药柱的超声特征扫描成像检测[J].固体火箭技术,2007,30(5):459-462. |
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| 作者姓名： | 陆铭慧 王海芳 陈以方 |
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| 作者单位： | 1. 清华大学机械工程系,北京,100084;南昌航空大学无损检测技术教育部重点实验室,南昌,330063
2. 清华大学机械工程系,北京,100084 |
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| 摘 要： | 研究了固体火箭发动机药柱的声传播特性。介绍了超声特征扫描成像方法的原理、扫描系统的设计。采用研制的低频组合探头,提高了声波在粘弹介质中的穿透能力。试验表明,设计的超声特征扫描系统可采用幅度成像、深度成像成功检测药柱的缺陷。
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| 关 键 词： | 固体药柱 粘弹介质 超声检测 特征扫描成像 |
| 文章编号： | 1006-2793（2007）05-0459-04 |
| 收稿时间： | 2006-12-20 |
| 修稿时间： | 2007-08-13 |
Ultrasonic feature scan imaging detection system for solid rocket grain |
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| LU Ming-hui,WANG Hai-fang,CHEN Yi-fang.Ultrasonic feature scan imaging detection system for solid rocket grain[J].Journal of Solid Rocket Technology,2007,30(5):459-462. |
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| Authors: | LU Ming-hui WANG Hai-fang CHEN Yi-fang |
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| Institution: | 1. Department of Mechanical Engineering ,Tsinghua University ,Beijing 100084,China; 2. Key Laboratory of Nondestructive Test of Ministry of Education, Nanchang Aeronautic University, Nanchang 330063. China |
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| Abstract: | The characteristics of ultrasonic propagation in the solid rocket propellant were investigated.The principle and design of ultrasonic feature scan imaging system were introduced.The penetrating capability of ultrasonic wave in viscoelastic medium was improved by using low frequency transducers.The experimental results show that ultrasonic feature scan imaging system can successfully be used for detecting defects of grain by means of amplitude imaging and depth imaging. |
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| Keywords: | solid propellant grain viscoelastic medium ultrasonic detection feature scan imaging |
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