多刚体尾控弹的扰流片气动特性与控制机理研究  

Aerodynamic Characteristics and Control Mechanisms of Spoilers for Multi-body Tail-controlled Projectile

作　　者：雒鑫瑞 张盟 邓志红[1,2] 沈凯 姜志皓 LUO Xinrui;ZHANG Meng;DENG Zhihong;SHEN Kai;JIANG Zhihao(School of Automation,Beijing Institute of Technology,Beijing 100081,China;Engineering Research Center of Navigation,Beijing 100081,China)

机构地区：[1]北京理工大学自动化学院,北京100081 [2]导航、制导与控制技术教育部工程研究中心,北京100081

出　　处：《兵工学报》2024年第S02期259-270,共12页Acta Armamentarii

基　　金：国家自然科学基金项目(U2341215)。

摘　　要：现代战争对远程打击精度要求提升,传统非制导武器已难以满足需求,制导武器越来越受关注。扰流片作为控制执行机构,对其在不同工况下的气动特性认识不足,控制机理尚不明确。通过数值模拟和弹道分析相结合的方式,深入研究扰流片在不同高度、跨度和轴向位置下的气动性能变化以及其原理。使用数据结合纹影图、流线图等手段,分析了不同马赫数下附加力和力矩变化的原因。研究结果表明,扰流片的不同参数对附加力、力矩和控阻比具有显著影响。其中,附加轴向力直接影响了弹丸射程,附加法向力与附加力矩影响了弹丸的修正能力。研究为未来的扰流片设计与控制系统的优化提供了重要参考。In modern warfare,the demand for long-range precision strikes has increased,and the traditional unguided weapons are no longer sufficient to meet these needs.Guided weapons are receiving increasing attention.The aerodynamic characteristics of spoilers,as control actuators,under different conditions have been insufficiently understood,and their control mechanisms are not yet well-defined.The aerodynamic performance variations of spoilers at different heights,spans and axial positions,as well as their principles are investigated through numerical simulation and trajectory analysis.The causes of variations in additional forces and moments at different Mach numbers are analyzed through the use of shadowgraphs,streamlines,and other diagnostic methods.The study results indicate that the different parameters of spoiler have significant impacts on the additional forces,moments and control drag ratio.Specifically,the additional axial force directly affects the range of projectile,while the additional normal forces and moments have influences on the correction capability of projectile.This research provides important reference for the future design and optimization of spoiler and control system.

关 键 词：多刚体弹丸 计算流体动力学 扰流片 气动特性 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]