固体火箭发动机缺陷的ICT局部检测

陈庆贵; 卢洪义; 周源; 李慎; 李朋; 于光辉

doi:10.13224/j.cnki.jasp.2015.09.031

固体火箭发动机缺陷的ICT局部检测

doi: 10.13224/j.cnki.jasp.2015.09.031

1. 海军航空工程学院飞行器工程系, 山东烟台 264001;
2. 海军航空工程学院七系, 山东烟台264001;
3. 中国人民解放军 91206部队, 山东青岛 266108;
4. 海军航空工程学院青岛校区, 山东青岛 266041

基金项目:

国家自然科学基金(51005242)

详细信息

作者简介:
陈庆贵(1987-),男,山东莒南人,博士生,主要从事发动机测试理论与技术研究.

中图分类号: V435
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出版历程
- 收稿日期: 2014-07-20
- 刊出日期: 2015-09-28

ICT local inspection of solid rocket motor's defects

1. Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University, Yantai Shandong 264001, China;
2. No.7 Department, Naval Aeronautical and Astronautical University, Yantai Shandong 264001, China;
3. Unit 91206, the Chinese People's Liberation Army, Qingdao Shandong 266108, China;
4. Qingdao Branch, Naval Aeronautical and Astronautical University, Qingdao Shandong 266041, China

摘要

摘要: 为了实现对固体火箭发动机缺陷的局部检测,提出了窄角扇束工业计算机断层扫描成像(ICT)检测固体火箭发动机缺陷的局部检测方案.采用平移/旋转扫描方式和只旋转扫描方式对固体火箭发动机缺陷进行局部检测.为了验证局部检测方案的有效性,利用窄角扇束ICT对某型固体火箭发动机进行局部检测,并利用卷积反投影算法和小波变换算法进行局部重建.结果表明:平移/旋转扫描方式适合窄角扇束ICT对固体火箭发动机缺陷进行局部检测,只旋转扫描方式不适合局部检测.由于利用局部缺陷区域外的投影数据,卷积反投影算法较小波变换算法的局部重建质量高.这对于提高固体火箭发动机缺陷的检测效率,降低检测成本具有重要意义.
- 固体火箭发动机 /
- 缺陷 /
- 窄角扇束ICT /
- 局部检测 /
- 卷积反投影 /
- 小波变换
Abstract: To inspect solid rocket motor's defects locally, local inspection scheme of solid rocket motor's defects was proposed for narrow fan-beam industrial computed tomography(ICT). Translation/rotation scan mode and rotation only scan mode were used to inspect solid rocket motor's defects locally. To demonstrate the effectiveness of local inspection scheme, narrow fan-beam ICT was used to inspect one solid rocket motor locally. Convolution backprojection algorithm and wavelet transform algorithm were applied to reconstruct ICT images locally. Results show that translation/rotation scan mode is effective for narrow fan-beam ICT to inspect solid rocket motor's defects locally, rotation only scan mode is not effective. For using projections outside the local defect area, the reconstructed image quality of convolution backprojection algorithm is better than that of wavelet transform algorithm. It is of great significance for improving the inspection efficiency of solid rocket motor's defects and for reducing the inspection cost.
- solid rocket motor /
- defect /
- narrow fan-beam ICT /
- local inspection /
- convolution backprojection /
- wavelet transform

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参考文献(18)

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