Volume 28 Issue 10
Oct.  2013
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ZHU Min, YU Guang-hui, LU Hong-yi, LI Peng. Defect accurate positioning method of solid rocket motor in volume space[J]. Journal of Aerospace Power, 2013, 28(10): 2364-2369.
Citation: ZHU Min, YU Guang-hui, LU Hong-yi, LI Peng. Defect accurate positioning method of solid rocket motor in volume space[J]. Journal of Aerospace Power, 2013, 28(10): 2364-2369.

Defect accurate positioning method of solid rocket motor in volume space

  • Received Date: 2012-10-03
  • Publish Date: 2013-10-28
  • 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.

     

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