基于耦合运动的潜射运载器上浮弹道数值仿真

梁景奇; 党建军; 罗 凯; 黄 闯; 莫慧黠

doi:10.11993/j.issn.2096-3920.2017.04.004

基于耦合运动的潜射运载器上浮弹道数值仿真

doi: 10.11993/j.issn.2096-3920.2017.04.004

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金项目(51579209、51409215、51679202)

详细信息

作者简介:
梁景奇(1992-), 男, 在读硕士, 主要研究方向为水下航行器弹道仿真与控制.

中图分类号: TJ630.1; TB71.2
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-11
- 修回日期: 2017-06-12
- 刊出日期: 2017-10-31

Numerical Simulation for Ascending Trajectory of Submarine-Launched Carrier with Coupled Motion

School of Marine Science and Technology, Northwestern Polytechnical University, Xi′an 710072, China

摘要

摘要: 潜射运载器的无动力上浮弹道因受发射条件、海流等因素的影响会出现大攻角和大侧滑角, 进而表现出非线性特征, 传统弹道预报手段难以满足需求。基于动网格技术和刚体空间运动方程建立3D六自由度数值模型, 实现运载器与外流场的双向耦合, 通过改变初始条件对运载器的无动力上浮弹道进行仿真, 并与MK46鱼雷弹道模型的计算值进行比较。仿真结果表明, 上浮过程中俯仰角逐渐增大, 攻角先增大后减小; 上浮俯仰角及攻角峰值随着发射速度的增大而减小; 上浮时间、出水俯仰角随着发射深度的增大而增大。文中研究可为水下航行器的强机动弹道预报提供参考。
- 潜射运载器 /
- 鱼雷弹道 /
- 无动力上浮 /
- 弹道预报
Abstract: The unpowered ascending trajectory of a submarine-launched carrier presents large angle of attack and side-slip angle due to the effects of launching condition and ocean current, and then shows nonlinear characteristics. The conventional trajectory prediction method cannot meet the requirement of practical application. In this paper, a three-dimensional computational model with six degrees of freedom is established based on dynamic mesh and spatial kinetic equation of rigid body to achieve a two-way coupled simulation of the carrier and external flow field. The unpowered ascending trajectory of the submarine-launched carrier is simulated by changing the initial conditions, and the results are compared with that of the MK46 torpedo trajectory model. The comparison shows that: 1) the pitching angle gradually increases during the ascending process, while the angle of attack increases first and then decreases; 2) the ascent pitching angle and peak angle of attack decrease with the increasing launching speed; and 3) the duration of ascent and the pitching angle of breaking out of water increase with the increase in launching depth. This study may provide a reference for prediction of enhanced maneuvering trajectory of undersea vehicles.
- submarine-launched carrier /
- torpedo trajectory /
- unpowered ascent /
- trajectory prediction

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参考文献(12)

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