Research on Load Transfer Law of Artillery Equipment under Complex Boundary Conditions

This article focuses on the problem of load transfer during artillery firing under different soil boundary conditions, considering the complex boundary coupling effect and the law of system load transfer and boundary influence. On the basis of traditional dynamic simulation methods, a combination of spatial springs and damping friction is used to simulate the deformation behavior of soil. This system is used to establish equivalent displacement conditions for soil boundaries. Subsequently, efficient and high-precision dynamic modeling research was conducted on artillery. The parameter values of the boundary combination model are determined by solving the fitting test data through dynamic simulation, forming a soil boundary submodel. A large caliber self-propelled gun is tested and compared with the high-speed camera monitoring results of the vehicle displacement, parking hoe displacement, and hydraulic oil pressure monitoring results of the parking hoe during the shooting test. The simulation results meet the accuracy requirements. Compared with the traditional multi-body dynamics model, this method has higher simulation accuracy and does not increase the simulation complexity and computational scale, which can be applied to the development of the same type of artillery equipment to improve the simulation and design efficiency in the process of artillery equipment development.