Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Research on the safety of small caliber shells on trigger fuse feeding and internal ballistics
| DOI: | 10.11809/bqzbgcxb2023.12.005 |
| Keywords: | small caliber shells; trigger fuze; feed; internal ballistics; safety; numerical simulation |
| Abstract: | Aiming at the safety and reliability requirements of the mechanical trigger fuzes of small caliber shells, we carry out the research on the safety of the trigger fuzes of small caliber shells in supplying shells and internal ballistics. Through the study of small caliber shell trigger fuzes, the 35 mm small caliber shell fuse mode lis constructed.Based on the LS DYNA dynamics simulation software, finite element simulation of small caliber artillery fuzes is carried out to analyze the characteristics of the dynamics response of small caliber artillery fuzes during the feeding process.And then, the internal ballistic simulation model is constructed by combining Simulink to extract the environmental parameters of the small caliber shell when it is fired, and the finite element simulation of the small caliber shell fuzes during the internal ballistic launching process is carried out based on LS DYNA to analyze the kinetic response characteristics of the fuzes when they move inside the chamber. It is found that the safety of a 35 mm small caliber shell fuze can be ensured in a high lateral overload environment with a firing speed of about 1 000 rounds/min, and in a high axial overload environment in the bore, the safety system locally strains, but its safety performance is not affected. |
| Issue: | Vol. 44 No. 12 (2023) |
| Published: | 2023-12-28 |
| PDF HTML | |