Simulation Analysis of Shell-Throwing Force of Cased Telescoped Ammunition
Cased Telescoped Ammunition(CTA)can bring a series of benefits to weapon systems,such as simplifying the feeding mechanism,increasing ammunition capacity,and reducing the overall size of the artillery system.However,the regular shape of the projectile and the unique rotating cham-ber structure result in higher shell throwing resistance in CTA.In order to solve the problem of shell-throwing difficulty of CTA,this paper takes a certain type of CTA artillery as an example.It analyzes the structural and stress characteristics of CTA,develops a finite element model for CTA,simulates the shell ejection process,and calculates the ejection force for different yield limit propellant cases.By comparing and analyzing the simulation results,the article proposes the optimal yield limit for the pro-pellant under specific chamber pressure conditions to achieve zero ejection force.Based on the simula-tion analysis of the relationship between the yield limit of the propellant and ejection force for CTA,a method to address the significant shell ejection resistance is proposed by considering cartridge material,providing reference for the design of CTA.
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