In order to adapt to electromagnetic railgun launch,a small-caliber saboted armor-piercing projectile with a two-part rectangular sabot was utilized.Compared to traditional artillery,the lack of pre-separation force inside the gun bore results in aerodynamic forces directly affecting the reliability of sabot separation.A numerical simulation model coupling fluid mechanics and 6DOF dynamics was es-tablished using dynamic mesh technology to investigate flow field characteristics and aerodynamic dis-turbances on the projectile body.Comparisons were made regarding the trajectory and aerodynamic forces of the sabots,with a focus on the core structural parameters including the position of the fore end of the wind's eye and the depth of the wind's eye.The results indicate that adjusting the position of the fore end of the wind's eye can enhance sabot flipping attitude,while increasing the depth of the wind's eye can effectively improve the lift-to-drag ratio of the sabot and optimize trajectory.This method can serve as a reference for the design of electromagnetic-launched armor-piercing projectiles.
关键词
弹托分离/弹托结构/动网格/流体力学/六自由度
Key words
discarding sabot/structure of sabot/dynamic mesh/fluid mechanics/6 degree-of-freedom
维普
万方数据