反应堆控制棒在事故工况下的落棒时间分析方法,主要是建立驱动线上各部件在外力作用下的强迫振动方程和控制棒在垂直方向上的落棒运动方程。通过考虑落棒过程中控制棒与外侧部件之间的碰撞效应,将上述两个方程联系起来,用有限差分法对振动方程作离 Reactor control rods fall accident under the conditions of time analysis method, the main component is to establish the drive line under the action of external force forced vibration and control rod in the vertical direction of the falling bar equation of motion. By considering the collision between the control rod and the outer part during the falling process, the above two equations are connected, and the vibration equation is separated from the vibration equation by the finite difference method