摘要
控制棒驱动机构是核电厂中的重要安全设备,其动态特性是研究和设计该机构的关键.首先建立控制棒驱动机构的磁路和电路方程.然后基于控制棒驱动机构动态提升过程分析,将运动过程分为3个阶段,并分别推导出各阶段的磁路-电路-机械运动耦合方程.采用解析解和数值仿真两种方法相结合,求解了控制棒驱动机构分段的非线性方程.最终得出动态过程中电流、电磁力、衔铁速度、衔铁位移和衔铁加速度等一系列反应控制棒驱动机构动态特性的参数随时间的变化曲线,并得到了实验验证.
The dynamic properties of control rod drive mechanism （CRDM）,a key safety equipment for nuclear power plants, secure a crucial position in mechanism design. Firstly, relevant equations of electric and magnetic circuits are established. Then, the motional process is classified into three stages based on dynamic lifting process. Meanwhile, the magnetic-electric-mechanical coupling equations are deduced for each stage. By integrating the aria- lyrical solution with numerical simulation, the segmental nonlinear equations of CRDM are solved. Finally, such time-based parameters as the coil current, magnetic force, magnet displacement, velocity and acceleration are used for dynamic property attainment and experimental verification.
出处
《中国工程机械学报》
2011年第4期410-415,共6页
Chinese Journal of Construction Machinery
关键词
控制棒驱动机构
动态特性
分段非线性
解析解
数值仿真
control rod drive mechanism
dynamic property
segmental nonlinearity
analytical solution
numerical simulation
