固体火箭发动机切向ICT重建算法研究

Research on tangential ICT image Reconstruction algorithm for SRM

为实现对大型固体火箭发动机界面脱粘缺陷的检测,对固体火箭发动机切向ICT重建算法进行了研究。针对检测过程中的切向ICT图像重建问题,研究了ART算法、IRR算法、ML-EM算法以及TVM-POCS算法这4种算法的基本原理及计算机实现方法,并利用计算机仿真模体的切向ICT扫描数据对以上4种算法进行了验证。根据不同算法的重建结果比较了不同算法存在的优缺点,从仿真结果上看,TVM-POCS算法的重建效果最好,可以满足固体火箭发动机界面脱粘缺陷的检测要求。通过对固体火箭发动机切向ICT重建算法进行研究,为进一步研究固体火箭发动机切向ICT检测方法提供了参考。

In order to detect interface debonding defect of large solid rocket motor,tangential ICT reconstruction algorithm was studied.Aiming at the tangential ICT image reconstruction problem,this paper firstly introduced the basic principles and computer implementation methods of ART algorithm,IRR algorithm,ML-EM algorithm and TVM-POCS algorithm.The four algorithms were validated by using tangential ICT scanning data of simulated modules.The reconstruction results of different algorithms were compared.From the simulation results,the reconstruction result of TVM-POCS algorithm is the best.Tangential ICT reconstruction algorithm of solid rocket motor was studied,which provides reference for further research on tangential ICT detection method of solid rocket motor.