计算力学学报2017，Vol.34Issue(3)：267-273,7.DOI:10.7511/jslx201703001
控制棒驱动机构步跃提升碰撞的动力学建模
Dynamic modeling for the impact of control rod drive mechanism under step loads
摘要
Abstract
Under step loads,contact-impact may occur between the pole and housing of the control rod drive mechanism.Based on the formulation in the floating frame of reference discretized equations of motion for the rigid-flexible coupled structure are derived,and penalty method is used for calculating the impact force and the stress distribution of the housing.Compared with the finite element method,the rigid-flexible coupling method can greatly improve the computational efficiency while maintaining the same accuracy.Furthermore,in order to reduce the number of finite elements used,the finite element mesh size of different regions of the structure is analyzed quantitatively.The conclusion can provide a good guideline for contact-impact analysis in engineering.关键词
控制棒驱动机构/刚柔耦合多体动力学/接触碰撞/罚函数法/数值仿真Key words
control rod drive mechanism/rigid-flexible coupling/contact-impact/penalty method/numerical simulation分类
信息技术与安全科学引用本文复制引用
陈成,刘锦阳,许艳涛,谢永诚..控制棒驱动机构步跃提升碰撞的动力学建模[J].计算力学学报,2017,34(3):267-273,7.基金项目
国家自然科学基金(11272203,11132007) （11272203,11132007）
民口专项(ZB01K03W02)资助项目. （ZB01K03W02）
