| 运载器式潜射导弹水面分离运动特性 |
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| 引用本文： | 陆辰昱,王鑫,周志坛,梁晓扬,乐贵高.运载器式潜射导弹水面分离运动特性[J].宇航学报,2021,42(4):496-503. |
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| 作者姓名： | 陆辰昱 王鑫 周志坛 梁晓扬 乐贵高 |
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| 作者单位： | 1. 南京理工大学机械工程学院，南京 210094；2. 中国人民解放军96901部队，24分队，北京 100094 |
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| 基金项目： | 航空科学基金(2019ZA059002) |
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| 摘 要： | 基于分数容积障碍法(FAVOUR)、不可压缩Navier Stokes方程、RNG k ε 湍流模型和VOF函数,建立了自由液面模型并与六自由度运动方程联合求解了运载器式潜射导弹的水面分离运动。通过数值计算结果与实验值对比，验证了计算模型的精度和有效性，进而对不同海况条件以及出水角度下潜射导弹的水面分离运动特性进行了对比研究。结果表明，各工况下运载器与导弹的质心位置、姿态角和轴向速度均处于稳定和发射安全允许范围内。但随着浪高的增加，导弹姿态角散布范围也明显增大。在5级海况下，运载器与导弹俯仰角的峰值达到22°。此外，相同海况下，若控制运载器以10°倾角出水，导弹分离后最终可以获得接近垂直的姿态。本文的数值分析方法能有效地用于预测运载器式潜射导弹水面分离过程。
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| 关 键 词： | 潜射导弹 分离运动特性 自由液面 六自由度运动 |
| 收稿时间： | 2020-05-23 |
Separating Kinematic Characteristics ofSubmarineLaunched Missile near the Free Surface |
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| LU Chen yu,WANG Xin,ZHOU Zhi tan,LIANG Xiao yang.Separating Kinematic Characteristics ofSubmarineLaunched Missile near the Free Surface[J].Journal of Astronautics,2021,42(4):496-503. |
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| Authors: | LU Chen yu WANG Xin ZHOU Zhi tan LIANG Xiao yang |
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| Affiliation: | 1. School of Mechanical Engineering, Nanjing
University of Science and Technology, Nanjing 210094, China;2.
Team 24, The PLA Unit 96901, Beijing 100094, China |
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| Abstract: | This paper establishes the free surface model using
the fractional areas/volume obstacle representation (FAVOUR) method,
incompressible Navier Stokes equations, Renormalization Group (RNG) turbulence model and volume of fluid (VOF) function.
Then, a set of six degree of freedom equations are proposed to jointly solve the separating
movement of submarine launched missile on the water
surface. The accuracy and effectiveness of the above models are verified by
comparing simulation results with test data. On this basis, the separating
kinematic characteristics of submarine launched missile
under different sea conditions and water exit angles
are investigated. The results show that the mass center position, attitude
angle and axial speed of the launch canister and missile are stable and within
the safe range in each working condition. However, with the increase of wave
height, the range of attitude angles also increases. Under 5 class sea
condition, the pitch angle of the launch canister and the missile can reach 22°. Additionally, under the same sea condition, if the launch canister
exits from the water with an inclined angle about 10°,
the missile will finally obtain a vertical posture. The numerical method in
this paper can be effectively applied to the prediction of the separation
process of submarine launched missile near the free
surface. |
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