高亚声速靶弹拖曳式诱饵系统的拖缆姿态分析

摘要

拖缆姿态分析是高亚声速靶弹拖曳诱饵系统结构及布局设计的基础。针对常见的诱饵气动外形，利用旋成体空气动力学理论，分析估算高亚声速环境下拖曳诱饵的气动阻力。采用离散化方法，将柔软拖缆视为由多段刚体连接而成的链状结构，利用力矩平衡原理，由诱饵端起计算缆绳每一离散刚体段的姿态，并逐次向载弹拖缆定位点递推，最终近似计算出整条拖缆姿态。%Attitude analysis of towline is the base of whole construction and layout design of towed decoy systems .For the usual aerodynamic configuration scheme of given decoy ,the aerodynamic resistance of decoy in high subsonic flying is analyzed and calculated using the method of spinning projectile aerodynamics .Using the discrete method of continuous system ,the soft towline is regarded as the rigid body chains which joined one by one .Based on the moment‐equilibrium theory ,the attitude of the rigid body chain is calculated firstly at the side of the decoy .And then recurrence is made to the next ,until the location point of the towline in missile .Finally the whole attitude of the towline is concluded approximatively .