固体火箭发动机体空间缺陷精确定位方法

朱敏; 于光辉; 卢洪义; 李朋

固体火箭发动机体空间缺陷精确定位方法

1.
海军航空工程学院7系, 山东烟台 264001
2.
海军航空工程学院飞行器工程系, 山东烟台 264001

基金项目: 国家自然科学基金(51005242)

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出版历程
- 收稿日期: 2012-10-03
- 刊出日期: 2013-10-28

Defect accurate positioning method of solid rocket motor in volume space

1.
No. 7 Department, Naval Aeronautical and Astronautical University, Yantai Shandong 264300, China
2.
Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University, Yantai Shangdong 264300, China

摘要

摘要: 在固体火箭发动机体数据三维重构的基础上,构建出符合脱黏、气泡和夹渣体数据特征的三维相似变换模板,经三维相似变换后,定位出各类缺陷的体数据场位置,选取缺陷几何中心为缺陷精确定位的标志点,给出了体空间中缺陷几何中心的计算方法.设计制作了预置典型缺陷的模拟固体火箭发动机,测量得到的缺陷几何中心和实际几何中心的距离与最大直径的比值都不大于10%,即测量得到的几何中心与实际几何中心很接近,因此对缺陷几何中心的定位是准确的.
- 固体火箭发动机 /
- 体空间 /
- 三维相似变换 /
- 缺陷定位 /
- 工业CT(computed tomography)
Abstract: On the basis of 3-D reconstruction of the solid rocket motor volume data,the three-dimensional similarity transformation templates compliant with the volume data features of debonding,bubbles and slag inclusion were built.The volume data fields of various defects were located by 3-D similarity transformation.The defect geometric center was selected as the mark point for defect accurate positioning,and the calculation method in volume space of the defect geometric center was given.The simulated solid rocket motor with preset typical defects was designed.Through the experiment,the ratio of the measured distance between the geometric center and the actual geometric center,to the maximum diameter is less than 10%.That's to say,the measured geometric center and the actual geometric center are very close,and the positioning of the geometric center of defects is accurate.
- solid rocket motor /
- volume space /
- 3-D similarity transformation /
- defect location /
- industry CT(computed tomography)

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参考文献(15)

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