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作 者:李涛 田犇[1,2,3] 史宝军 刘启明 LI Tao;TIAN Ben;SHI Baojun;LIU Qiming(State Key Lab of Reliability and Intelligence of Electrical Equipment,Tianjin 300401,China;Key Laboratory of Advanced Intelligent Protective Equipment Technology,Ministry of Education,Tianjin 300401,China;School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China)
机构地区:[1]电工装备可靠性与智能化国家重点试验室,天津300401 [2]先进智能防护装备技术教育部重点实验室,天津300401 [3]河北工业大学机械工程学院,天津300401
出 处:《兵器装备工程学报》2025年第3期16-24,共9页Journal of Ordnance Equipment Engineering
摘 要:针对不同平面形状及翼型组合而成的舵翼,在弹体飞行过程中会产生不同气动特性从而影响制导炮弹的弹道修正过程。通过选取4种平面形状与3种翼型构建舵翼三维模型进行气动特性仿真分析,采用考虑边界层效应的计算流体力学(CFD)方法探讨了不同平面形状和翼型的舵翼在不同马赫数下的阻力系数、俯仰力矩系数及升阻比等气动特性参数,揭示了其对舵翼气动特性的影响规律。结果表明:①双弧翼型与不对称梯形相匹配的舵翼,在各个阶段的阻力系数较小,升阻比大,并且俯仰力矩系数也大于其它舵翼,稳定性较好,展现了优异的气动性能。②尖峰翼型与矩形相匹配的舵翼在速度小于0.8马赫的阶段的升阻比最大,梯形翼和不对称梯形匹配的舵翼在速度为0.8马赫到1.6马赫阶段升阻比最大,双弧翼型与不对称梯形相匹配的舵翼则是在速度大于1.6马赫之后升阻比最大。③梯形翼型与不对称梯形相匹配的舵翼在速度小于1.2马赫之前的阶段有着最大的俯仰力矩系数,双弧翼型与不对称梯形相匹配的舵翼在速度大于1.2马赫之后的俯仰力矩系数最大。The combination of rudder wings with different plane shapes and wing types will produce different aerodynamic characteristics during the flight of the projectile,thus affecting the trajectory correction process of the guided projectile.Four plane shapes and three wing types are selected to construct a three-dimensional model of the rudder wing for aerodynamic simulation and analysis.And the aerodynamic parameters such as drag coefficient,pitching moment coefficient and lift-to-drag ratio of the rudder wings with different plane shapes and wing types at different Mach numbers are investigated by using the computational fluid dynamics(CFD)method considering the effect of the boundary layer to reveal the influence on the aerodynamic characteristics of the rudder wing.The results show that:1)The double-arc airfoil and asymmetric trapezoid matched rudder wing has a smaller drag coefficient and a larger lift-to-drag ratio in all phases,and the pitching moment coefficient is also larger than that of the other rudder wings,which is more stable and shows excellent aerodynamic performance.2)The spike airfoil and rectangular matched rudder wing has the largest lift-to-drag ratio in the phase where the speed is less than Mach 0.8,and the trapezoidal and asymmetric trapezoid matched rudder wings have the largest lift-to-drag ratio at the phase when the speed is between Mach 0.8 to Mach 1.6,and the double-arc and asymmetric trapezoidal matched rudder wings have the largest lift-to-drag ratio at speeds greater than Mach 1.6.3)The trapezoidal airfoil matched with the asymmetric trapezoid has the largest pitching moment coefficient in the phase before speeds less than Mach 1.2,and the double-arc airfoil matched with the asymmetric trapezoid has the largest pitching moment coefficient after speeds greater than Mach 1.2.
分 类 号:TJ4[兵器科学与技术—火炮、自动武器与弹药工程]
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