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以典型的大长细比轴对称航行体垂直出筒过程为对象,采用动力学仿真方法进行求解,研究无适配器约束条件下出筒过程动载荷响应特性,并在此基础上对出筒动载荷主要影响因素进行了分析。结果表明航行体截面弯矩载荷随出筒过程先增大后减小,在筒口位置附近达极值;出筒过程弯矩载荷与发射条件、流场变化以及筒体结构特性等均紧密相关,其它条件一致情况下,横流速度越大、水深越浅、筒体接触刚度系数越大,截面弯矩载荷越大。
In this paper, the typical large slenderness ratio of the axial symmetric sailing body is taken as the target, and the dynamic simulation method is used to solve the dynamic behavior of the axial-symmetric sailing body. The dynamic response of the projectile with no adapter constraints is studied. The main influencing factors were analyzed. The results show that the bending moment load of the sailing body first increases and then decreases with the course of the launching process, reaching an extreme near the mouth of the launching tube. The bending moment load of the launching process is closely related to the launching conditions, the flow field changes and the structural characteristics of the cylinder. Under other conditions, the greater the cross-flow velocity and the shallower the water depth, the greater the contact stiffness coefficient of the cylinder body and the greater the cross-sectional bending moment load.