Study on the sealing properties of the sealing structure for the rotating chamber of a certain cased telescoped ammunition gun

Longmiao Chen, Qiang Fu, Gui Lin

COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(3) 93-97

College of Mechanical Engineer, Nanjing University of science and technology, Nanjing 210094, Jiangsu, PR China

To solve the spherical transient high pressure gas seal problem for the rotating chamber of a certain medium calibre cased telescoped ammunition gun, a self-impacted combined sealing system was newly designed which can be placed at semi combustible cartridge of the cased telescoped ammunition. The sealing mechanism of the structure was analysed and simulation studies on the comprehensive properties of the sealing structure were carried out via the FEM dynamic response. In addition, the simulation and verification tests were conducted to test the sealing performance of the sealing structure. The results of the simulation analysis and the experiments demonstrate that the designed sealing structure has a good sealing performance and can solve the spherical transient high pressure gas seal problem for the rotating chamber of the medium calibre cased telescoped ammunition gun, and it is expected to offer a reference value to solve related problems in engineering.