舰载四摆臂式扰流片气动力数值仿真研究

Numerical Simulation on Aerodynamic Force of Shipborne Four Swing Arm Type Spoiler

摘要:

为满足工程应用中四摆臂式扰流片气动力分析和飞行力学建模的需求，本文针对四摆臂式扰流片分别开展了主推力和侧向力调节气动力数值仿真，获得了扰流片矢量力控制能力。首先，提出了四摆臂式扰流片主推力和侧向力调节策略。其次，搭建了四摆臂式扰流片数值仿真模型。最后，通过数值仿真手段分别研究了单扰流片气动力、扰流片推力调节和侧向力调节能力。数值仿真结果表明：四摆臂式扰流片主推力调节能力超过30%；当主推角小于32°，主推力跟主推角线性关系较好，扰流片间的气动干扰小。四摆臂式扰流片侧向力调节能力强，能产生最大53.5N的侧向力，且侧向力跟侧向力差动角线性关系强，极利于弹体姿态控制。

Abstract:

This paper performs numerical simulations on the main thrust and lateral force adjustments of four swing arm spoilers, thereby determining their vector force control capabilities, which meet the need of aerodynamic analysis and flight mechanics modeling in engineering. The paper begins by presenting strategies for adjusting the main thrust and lateral forces of the four swing arm spoilers. Secondly, a numerical simulation model for four swing arm spoilers is established. Finally, the paper examines the aerodynamic forces of a single spoiler, along with the thrust and lateral force adjustment capabilities of the four swing arm spoilers system through simulation. The simulation results indicate that the main thrust adjustment capability of the spoilers surpasses 30%. When the main thrust angle is below 32°, there is a strong linear relationship between the main thrust and the main thrust angle, with minimal aerodynamic interference between the spoilers. Furthermore, the four swing arm spoilers demonstrate a strong ability to adjust lateral forces, capable of generating a maximum lateral force of 53.5N. Additionally, the lateral force shows a strong linear relationship with the differential angle of the lateral force, which greatly aids in missile attitude control.