北京科技大学学报Issue(5)：674-679,6.DOI:10.13374/j.issn1001-053x.2014.05.016
热带钢轧机轧辊热变形的快速有限元模型
Finite element model for rapidly evaluating the thermal expansion of rolls in hot strip mills
摘要
Abstract
ABSTRACT The disadvantages of the analytical solution and the simplified method were analyzed and a thermal expansion model was established by the finite element method. Based on the data characteristics of the rolls' geometry in a rolling unit, the calculation task was divided into pre-calculation responsible for static data preparation and renewal calculation responsible for renewing dynamic data and thermal expansion. The pre-calculation was called only after roll change and the renewal calculation was called when the thermal expansion data was needed to be updated. This special tailored flow contributes to a much smaller computation complexity in compari-son with standard finite element analysis. Furthermore, the corresponding program was compiled according to the tailored flow and its results are in agreement with those by ANSYS, with the accuracy of about 30% higher than the simplified method. Due to high accura-cy and short calculation time, this home-made finite element analysis program is promising to be implemented in online applications for evaluating the thermal expansion of rolls.关键词
带钢轧机/热轧/板形控制/轧辊/热变形/有限单元法Key words
strip mills/hot rolling/shape control/rolls/thermal expansion/finite element method分类
矿业与冶金引用本文复制引用
孔繁甫,何安瑞,邵健,葛鲜玉..热带钢轧机轧辊热变形的快速有限元模型[J].北京科技大学学报,2014,(5):674-679,6.基金项目
新世纪优秀人才支持计划资助项目(NCET-10-0223) （NCET-10-0223）
中央高校基本科研业务费专项资金资助项目(FRF-TP-11-003A) （FRF-TP-11-003A）
