固体火箭发动机内型面重建技术研究

Study on the Reconstruction Technology of Internal Profile of Solid Propellant Rocket Engine

在固体火箭发动机中,包覆层厚度都会影响其装药量,从而影响其工作性能。文中设计了固体火箭发动机内型面检测系统,首先对采集到的固体火箭发动机内型面的位移值进行D-H建模得到内型面的三维点云数据,其次采用基于固体火箭发动机设计半径R的均值滤波方法实现点云数据的精简,最后采用Delaunay三角剖分曲面重建并着色。实现了对磨损和需要打磨区域的标记,实用性强。

In solid propellant rocket engine,the thickness of the coating will affect the charge quantity and the performance of the solid rocket motor.In this paper,a solid propellant rocket engine inner surface measurement system was designed.Firstly,the D-H model was used to obtain the 3 D point cloud data of the inner surface of solid propellant rocket engine.Secondly,the mean filtering method based on the design radius R of solid propellant rocket engine was used to simplify the point cloud data.Finally,the Delaunay triangulation surface is reconstructed and colored.The utility model realizes the marking of wear and the area needing to be polished,and has strong practicability.