CT local reconstruction of solid rocket motor based on PI-POCS-TVM

LU Hong yi; CHEN Qing gui; ZHU Min; LI Peng; ZHAO Ru yan; WANG Bin

doi:10.13224/j.cnki.jasp.2017.02.027

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CT local reconstruction of solid rocket motor based on PI-POCS-TVM

火箭发动机 | 更新时间：2026-07-07

- CT local reconstruction of solid rocket motor based on PI-POCS-TVM
- CT local reconstruction of solid rocket motor based on PI-POCS-TVM
- 航空动力学报 2017年32卷第2期页码：470-476
- 作者机构：
  
  1. Airborne Vehicle Engineering Department,Naval Aeronautical and Astronautical University,Shandong,Yantai,China,264001
  2. Qingdao Branch, Naval Aeronautical and Astronautical University,Shandong,Qingdao,China,266041
  3. No. 7 Department, Naval Aeronautical and Astronautical University,Shandong,Yantai,China,264001
- 作者简介：
- 基金信息：
  
  Natural Science Foundation of China （51005242）Natural Science Foundation of China （51005242）
- DOI：10.13224/j.cnki.jasp.2017.02.027
  中图分类号：
- 纸质出版：2017
- 稿件说明：
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LU Hong yi, CHEN Qing gui, ZHU Min, LI Peng, ZHAO Ru yan, WANG Bin. CT local reconstruction of solid rocket motor based on PI-POCS-TVM[J]. 航空动力学报, 2017, 32(2): 470-476.

doi: 10.13224/j.cnki.jasp.2017.02.027
LU Hong yi, CHEN Qing gui, ZHU Min, LI Peng, ZHAO Ru yan, WANG Bin. CT local reconstruction of solid rocket motor based on PI-POCS-TVM[J]. 航空动力学报, 2017, 32(2): 470-476. DOI： 10.13224/j.cnki.jasp.2017.02.027.

doi: 10.13224/j.cnki.jasp.2017.02.027 DOI：

摘要

In order to test the defects of solid rocket motor (SRM) accurately and efficiently

the computed tomography (CT) inspection scheme for SRMs defects was investigated and a CT local reconstruction algorithm called prior informationprojection onto convex setstotal variation minimization (PI-POCS-TVM) was developed. The SRM was first inspected by industrial CT (ICT) to generate a lowresolution SRM image used as the prior information

then highresolution local inspection was carried out for SRM's defects. To validate the effectiveness of the CT inspection scheme for SRMs defects

one SRM was inspected by a narrow fan beam ICT system. Filtered back projection (FBP) algorithm

POCS

POCS-TVM and PI-POCS-TVM algorithms were applied to reconstruct CT images. The performance of these algorithms was also compared. Results demonstrated the effectiveness of the CT inspection scheme for SRM's defects. Moreover

the PI-POCS-TVM algorithm has better local reconstruction image quality than the other three algorithms

showing great significance for accurate measurement of SRM's defects.

Abstract

In order to test the defects of solid rocket motor (SRM) accurately and efficiently

the computed tomography (CT) inspection scheme for SRM's defects was investigated and a CT local reconstruction algorithm called prior informationprojection onto convex setstotal variation minimization (PI-POCS-TVM) was developed. The SRM was first inspected by industrial CT (ICT) to generate a lowresolution SRM image used as the prior information

then highresolution local inspection was carried out for SRM's defects. To validate the effectiveness of the CT inspection scheme for SRM's defects

one SRM was inspected by a narrow fan beam ICT system. Filtered back projection (FBP) algorithm

POCS

the PI-POCS-TVM algorithm has better local reconstruction image quality than the other three algorithms

showing great significance for accurate measurement of SRM's defects.

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