控制棒可移动线圈电磁驱动机构线圈刚度实验

本工作在反应堆控制棒可移动线圈电磁驱动机构工程样机实验台架上，进行了电磁铁刚度实验。获得了不同保持电流工况下的平均刚度值：3A时，平均刚度值为129N/mm；3.5A时，为136N/mm；4A时，为152N/mm；4.5A时，为168N/mm；5A时，为164N/mm，稍低于4.5A时的平均刚度值。随着保持电流的增加，平均刚度值呈现先增加尔后又下降的变化趋势。温度升高对刚度值有影响。

Rigidity Experiment on Coil-Moveable Electromagnetic Drive Mechanism for Reactor Control Rod

This work concerns in the rigidity experiment of coil-moveable electromagnetic drive mechanism for reactor control rod.It was carried out on experimental stage of the engineering prototype.The calculated average rigidity values at various currents are as follows: 129 N/mm for 3 A,136 N/mm for 3.5 A,152 N/mm for 4 A,168 N/mm for 4.5 A,164 N/mm for 5 A.The rigidity linearly increases with the(coil's) current.The(coil's) temperature influences the rigidity,and the high coil's temperature can reduce the rigidity.