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以螺旋导轨导旋的多管火箭发射系统为研究对象，考虑弹炮间隙对系统的影响，建立了弹炮耦合运动模型，分析了各种可能的膛内运动姿态，并着重研究了弹炮间隙的存在对膛内运动姿态和起始扰动结果的影响．
The multi-tube rocket launch system guided by spiral guide rails is taken as the research object. Considering the influence of the clearance of the missile on the system, a coupled model of the gun-projectile is established, and various possible motion patterns in the bore are analyzed. Influence of Existence on the Posture Motion and Initial Perturbation Result in Bore.