摘要
为校核全新设计的大方坯连铸机活动段导辊支撑架的工作可靠性,根据活动段支撑架的实际工况进行载荷分类,以有限元数值分析软件为载体,分别计算活动段在设计工况下的动态拉坯阻力与动态铸坯鼓肚力,采用传统理论算法确定活动段的静载荷。以计算所得各载荷值为边界条件,对活动段支撑架进行应力仿真分析,分析结果发现该设计方案的不合理性并推翻了原设计,这为铸机活动段支架的力学分析计算提供了一种科学的校核方式,也为某钢铁厂能按期安全使用活动段支架提供了技术支撑。
For check and examination of the working reliability of the sustaining frame of the cast roller in the movement segment of the bloom continuous caster the load of the sustaining frame was sorted in accordance with the actual working conditions of the sustaining frame in that seegment and the dynamic drawing resistance and the dynamic bulging force of the bloom in the movement segment under the designed working conditions were calculated respectively by means of the finite element numerical analysis software and the dead load of the frame determined by the traditional theoretic method. Taking each calculated load value as the boundary conditon the stress simulation analysis on the sustaining frame of the movement segment was carried out. Results indicate that the original design plan was cast off since it was not reasonable. A scientific check and examination model can be provided for the mechanical analysis and calculation on the sustain- ing frame in the movement segment of the caster and at the same time the technical support is also provided for a specific iron-making and steel-making plant in safely and timely use of the sustaining frame.
出处
《炼钢》
CAS
北大核心
2009年第3期69-73,共5页
Steelmaking
关键词
连铸
活动段
支撑架
有限元
coutinuous casting
active segment
sustaining frame
FEM
