Dynamic Simulation of Tank Gun Recoil Cycle

Abstract

A mathematical model is developed -using MATLAB Simulink software package -to simulate, predict, and evaluate the performance of gun recoil system. The used gun is a tank gun with a concentric recoil mechanism. The results are presented in this paper can provide a clear understanding of design parameters affecting the behavior of recoil mechanism and/or improving the performance of recoil mechanisms in the future.A complete study of the constructional parameters that affect the performance of the concentric recoil system is carried out. Then, a mathematical model that includes all governing equations of recoil cycle is developed. Finally, the model is tested for a case study and the results is recorded and compared with others resulting from actual firing test. This paper starts with studying the construction of concentric recoil mechanism for tank gun and analysis of the different forces and resistances influencing the recoiling parts during recoil cycle; then, introducing the equation of motion of recoiling parts during recoil cycle and finally, constructing the simulation program to obtain results.Comparison of simulation results and others obtained from actual firing shows a good match that creates some confidence in the mathematical model. This confidence encourages reliance on this model in evaluation, development, and design of such systems.

Numerical Simulation of Flow Field in Coaxial Gun Recoil System

“…In the current study, a two-dimensional viscous model under unsteady conditions based on dynamic mesh layering technique is used to simulate the flow of liquid inside a coaxial recoil system during recoil. The results which mainly focus attention on the pressure inside the recoil system have been validated by experimental measurements as well as with some published results for one-dimensional analytical model performed by MATLAB Simulink for the same recoil system [5] . In the experimental work, the recoil velocity has been recorded via a high speed camera to feed the solver with the velocity of the moving boundaries.…”

“…The recoil velocity is deduced from the measured recoil distance and fed to ANSYS/Fluent as a compiled UDF for the moving boundaries. Also, the hydraulic pressure inside the recoil brake is measured to be compared with its counterpart obtained from numerical simulation as well as the published results in reference [5].…”

“…where m ୖ is recoiling parts mass; X is the recoil distance; V is the recoil velocity; P is the force of powder gases; K is the hydraulic resistance during recoil; R is the friction resistances in barrel guides and recoil system stuffing boxes; φ is the elevation angle. The gun recoil parameters has been determined in [5] using MATLAB Simulink and validated with exprimental measurements.…”

Study of dynamic characteristics of a new suggested recoiling mortar system

“…This hydraulic resistance is achieved because the RB is filled with liquid that is forced to move through narrow throttling areas Therefore, because of the great importance of recoiling systems in reducing the total force imparted to gun systems, researchers pay deep attention to study, analyse, and improve the characteristics of artillery recoil mechanisms. For instance, Elsaady et al [4] simulated the recoil cycle of a coaxial recoil system that is used in tank guns using MATLAB/Simulink. The theoretical results give high level of confidence of the mathematical model as the results are compared with their counterparts due to real firing results.…”