An Analysis and Calculation Method for One-Dimensional Balanced Interior Ballistics of a Recoilless Gun,Propellants, Explosives, Pyrotechnics

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An Analysis and Calculation Method for One-Dimensional Balanced Interior Ballistics of a Recoilless Gun
Propellants, Explosives, Pyrotechnics ( IF 1.8 ) Pub Date : 2022-06-30 , DOI: 10.1002/prep.202200124
zhonghui jiang ₁ , Gang Tao ₁ , Peng Wen ₁ , Zhiyu Li ₁ , Hongmin Yan ₂

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The balancing force of the interior ballistics is an important issue in the design of the recoilless gun. It has been found in practice that the balancing force design method for recoilless guns based on the traditional classical interior ballistic theory cannot guide the balance from the physical mechanism and process. In order to study the unbalanced force experienced by the recoilless gun during the firing of the projectile and the variation law of its various parameters with time, the analysis and calculation method of the balanced interior ballistics is proposed in this article. This method separately models the aerodynamic and propellant combustion processes of the recoilless gun, using the characteristic line method to solve the model numerically. This method can be used to predict the change of the unbalanced force acting on the recoilless gun during the projectile firing of the recoilless gun. The reliability of the algorithm is verified by the interior ballistic performance when China 78 type 82 mm recoilless smoothbore gun launches the projectile. The study found that the unbalance impulse generated by the gas inside the barrel fired by the recoilless gun accounts for only 1.5 % of the total recoil impulse, but it has a great influence on the amount of impulse a shooter has can take. This approach provides a better understanding of this complex internal ballistic process, which has important implications for the design and improvements of recoilless guns.

更新日期：2022-06-30

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