UUV冲压活塞式装置发射鱼雷内弹道特性研究  

Interior Trajectory Characteristics of Ram Piston Device in UUV for Torpedo Launching

作　　者：杨弓熠 詹磊 贾轩 郭良蛟 刘国庆 YANG Gongyi;ZHAN Lei;JIA Xuan;GUO Liangjiao;LIU Guoqing(Kunming Branch of the 705 Research Institute,China State Shipbuilding Corporation Limited,Kunming 650101,China)

机构地区：[1]中国船舶集团有限公司第705研究所昆明分部,云南昆明650101

出　　处：《水下无人系统学报》2023年第6期903-910,共8页Journal of Unmanned Undersea Systems

摘　　要：针对无人水下航行器轻量化、体积小的要求,文中提出了一种液压缸-冲压活塞-栅状管式发射装置。为评估该装置动力特性,基于流体动力学和内弹道理论,建立了该装置发射鱼雷动力学模型,以液压缸速度为输入,获得冲压活塞前后端压力特性和发射鱼雷内弹道特性。经对比验证,上述模型计算结果与计算流体力学仿真结果基本吻合,证明了所建模型的可靠性。研究结果表明,冲压活塞运动过程中产生的最大阻力约为0.43 MPa,为满足液压缸速度输入,液压缸输出压力及功率可采用上述结果作为设计依据;冲压活塞运动在0.42 s后作减速运动,此时鱼雷运动约3.9 m,为减小鱼雷后续管内运动时的压差阻力,栅状管孔位可根据上述结果进行优化以提升补水能力,从而提高发射装置的做功能力。For lightweight and small volume requirements of unmanned undersea vehicles(UUVs),a hydraulic cylinder-ram piston-grid tube launch device was presented in this paper.To evaluate the dynamic characteristics of the device,the dynamic model of the device for torpedo launching was established based on the theory of fluid dynamics and interior trajectory.The pressure characteristics of the front and rear ends of the ram piston and the interior trajectory characteristics of the device for torpedo launching were obtained with the hydraulic cylinder velocity as input.Through comparison,it is verified that the calculation results of the above model are in good agreement with the simulation results of fluid dynamics,which indicates the reliability of the established model.The results show that the maximum resistance generated during the movement of the ram piston is 0.43 MPa.In order to satisfy the velocity input of the hydraulic cylinder,the output pressure and power of the hydraulic cylinder are designed based on the above results.When the ram piston moves 0.42 s and then decelerates,the torpedo moves about 3.9 m.In order to reduce the pressure differential resistance of the torpedo in subsequent movement,the hole location of the grid tube can be optimized according to the above results to enhance the replenishing capacity and improve the performance of the launcher.

关 键 词：无人水下航行器 鱼雷 液压缸-冲压活塞-栅状管 流体动力学 内弹道 补水能力 

分 类 号：TJ635[兵器科学与技术—武器系统与运用工程]