Study on Firing Stability of Wheeled Self-propelled Gun Considering Tube Flexibility

Wheeled self-propelled artillery is lightweight and powerful, with good strategic and tactical mobility and high battlefield survivability, it can meet the needs of rapid mobility and precision strike of weapons and equipment in the future war and battlefield environment, and has an irreplaceable role. In this paper, a rigid flexible coupling dynamic model of a wheeled self-propelled gun considering the flexibility of the tube is established based on the multi body dynamics software Recurdyn, And the dynamic simulation analysis of gun firing stability under seven typical working conditions was carried out. The dynamic responses of center of mass displacement, change of vehicle body pitch angle, muzzle vibration, and contact force between the hoe, tire and the ground under various working conditions were obtained, and the firing stability of artillery under various working conditions is compared and analyzed. The research results can provide a reference for the calculation of the firing stability of similar guns.