针对潜射巡飞侦察弹水下长时放线的安全问题,进行了光纤拖曳浮标设计与水动力数值分析。采用CFD方法对光纤拖曳浮标的外形进行了优化,得到了相对升阻比较大的构型。利用Star CCM+软件对光纤拖曳浮标进行了水动特性计算分析,确定了其瞬时扰动后快速恢复平衡的条件。研究结果表明,光纤拖曳浮标满足横侧及纵向稳定性要求,可以保证光纤水下长时可靠释放。文中的研究对于光纤制导潜射巡飞侦察弹工程研制具有参考意义。

To solve the safety problem of long-time underwater launching of submarine-launched cruise missile,the design of optical fiber towed buoy and hydrodynamic numerical analysis are studied. The shape of the optical fiber towed buoy is optimized by CFD method,and the configuration with relatively high lift-drag ratio is obtained. The hydrodynamic characteristics of the optical fiber towed buoy are calculated and analyzed by Star CCM+ software,and the conditions for fast recovery of equilibrium after instantaneous disturbance are determined. The results show that the fiber optic towed buoy meets the requirements of transverse and longitudinal stability,and can ensure the reliable release of fiber optic underwater for a long time. The research in this paper has reference significance for the engineering development of optical fiber guided submarine-launched cruise missiles.