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以控制棒驱动机构为研究对象,对其落棒历程进行运动学建模、落棒体受力分析及计算。同时,提出相关转动部件转动惯量的折算办法及电机随动过程中所产生制动力矩的处理办法,编制落棒计算的通用程序,实现了落棒历程中各影响因素时变规律的全程监控。计算结果显示:控制棒驱动机构的设计方案满足反应堆总体设计对其的时间、止动坐标方面的要求;电机最大制动力矩低于电机设计方案的额定制动力矩,验证了控制棒驱动机构现阶段总体方案设计的合理性。
Taking the control rod driving mechanism as the research object, the kinematics modeling of the rod dropping process and the force analysis and calculation of falling rod are carried out. At the same time, the method of calculating the moment of inertia of the rotating parts and the processing method of the braking torque generated during the motor follow-up are put forward. The general procedure of falling-off calculation is compiled, and the time-varying regulation of the influencing factors in the falling process is realized. The calculation results show that the design scheme of the control rod drive mechanism meets the requirements of the overall design of the reactor on the time and the stop coordinate. The maximum braking torque of the motor is lower than the rated braking torque of the motor design scheme, The rationality of the overall program design stage.