Research on virtual cutting fault diagnosis technology of solid rocket motors
Haiyan Li · Journal of Solid Rocket Technology · 2010
The 3D model reconstructed by volume data from solid rocket motor ICT images was virtually cut so that the detectors can conveniently observe inner component and structure of solid rocket motors and judge the category and property of internal faults.Firstly,aiming at the characteristics of solid rocket motor volume data field,the segment result of volume data field and hierarchical volume data structure were combined to improve the existing ray projecting volume plotting method and realize the rapid plotting of the 3D model.On the basis of the above results,the human-computer interaction technology was applied into virtual slitting technology so as to realize plane slice and volume slitting in any place or any angle.Finally,space parameter measurement method based on feature point selection was designed to accurately measure the distance,angle and volume of cutting motor structure.Through the contrastive verification experiment with simulation motor,the results show that the error between the measured space parameter and the actual parameter is less than 4 percent,and the detection precision is reliable.