双弹头牵连体再入过程的动稳定性分析是有关工程设计中的重要环节。依据六自由度弹道方程 ,建立了双弹头牵连体再入的动力学模型 ,利用弹道与气动力的耦合 ,初步分析了双弹头牵连体再入的动稳定特性。计算结果表明 ,绳索牵连减弱了弹头再入的动稳定性 ,由动稳定弹头组成的双弹头牵连体在某些条件下可能出现打转、横飞等动不稳定现象。 The analysis of the dynamic stability of the dual-warhead detachment reentry process is an important link in the engineering design. According to six-degree-of-freedom trajectory equation, a dynamic model of reentry of dual-warhead pull-off body was established. By using the coupling of ballistic and aerodynamic force, the dynamic stability of reentry of the warhead was analyzed. The calculation results show that the rope entanglement weakens the dynamic stability of the reentry warhead, and the dual-warhead detachment body composed of the dynamic and stable warhead may appear dynamic instability under some conditions.