水下弹射过程中发射筒布置形式对相邻设备载荷状态的影响  

Influence of canister launcher layouts on load of adjacent equipments for underwater ejection

作　　者：卢丙举[1,2] 卫超 毕凤阳 赵世平 李超艳 毕世华 LU Bingju;WEI Chao;BI Fengyang;ZHAO Shiping;LI Chaoyan;BI Shihua(The 713 Research Institute of CSIC,Zhengzhou450015,China;Hennan Key Laboratory of Underwater Intelligent Equipment,Zhengzhou450015,China;School of Aerospace Engineering,Beijing Institute of Technology,Beijing100081,China)

机构地区：[1]中国船舶重工集团公司第七一三研究所,郑州450015 [2]河南省水下智能装备重点试验室,郑州450015 [3]北京理工大学宇航学院,北京100081

出　　处：《固体火箭技术》2022年第5期801-806,共6页Journal of Solid Rocket Technology

基　　金：装备发展部领域基金重点项目(61402070104)。

摘　　要：为研究水下弹射过程中发射筒布置形式对相邻设备载荷状态的影响,采用数值计算方法,对发射筒下沉布置于艇壳、艇艏以及筒口与艇壳齐平三种布置形式下的载荷特性进行研究分析。水下弹射伴随的气液多相流动及运动耦合过程采用多相流模型、计算流体力学方法和动网格技术进行模拟,并与试验状态进行对比验证。研究结果表明,发射井壁面和筒口气泡形态是不同布置形式下引起相邻设备载荷差异的主要原因;对比三种发射筒布置,载荷幅值最大差异为12%,发射筒下沉布置于艇艏时载荷幅值最大,发射筒口与艇壳齐平时载荷最小;筒口气泡的收缩膨胀引起相邻设备所受作用力的交变,对比发射筒布置于艇壳的两种布置,发射筒口与艇壳齐平条件下发射筒盖承受的作用力、力矩相对较小,在尺寸布置允许条件下,减小发射筒口至艇壳表面距离,对减小相邻设备载荷是有利的。In order to study the influence of canister launcher layouts on the load of adjacent equipment for underwater ejection,the load characteristics of the three layouts of the canister launcher placed below the hull,below the bow and flush with the hull were analyzed by using the numerical calculation method.The multiphase flow model,computational fluid dynamics(CFD)and dynamic mesh method were employed to simulate the process of gas-liquid multiphase flow and motion.The results show that the main reason of different load on adjacent equipments are state of gas bubbles near the wall and outlet in different layouts of canisters launcher.Comparing three layouts of canister launcher,the amplitude of load differs by 12%.When the canister launcher is placed below the bow,the load amplitude is maximum,and the load amplitude is minimum when the canister launcher is placed flush with the hull.The contraction and expansion of gas bubbles near the outlet causes the alternating force on the adjacent equipment.Comparing the two layouts of the canister launcher,the force and moment of the canister launcher placed flush with the hull are relatively small.Re-ducing the distance from the canister launcher outlet to hull surface is beneficial to reducing load on the adjacent equipment under reasonable size range condition.

关 键 词：水下弹射 发射筒 布置 压强载荷 数值模拟 

分 类 号：TJ762.4[兵器科学与技术—武器系统与运用工程]