摘要
温度场的正确计算对于在热加工以及冷却降温过程中零件的成形质量以及缺陷预测具有重要的指导作用。本文介绍了瞬态导热方程的数学模型、有限元离散过程、关键技术以及自主开发有限元计算程序的整体思路及算法流程,并利用自己开发的能够对复杂零件空冷过程温度场进行模拟计算的程序计算了一个钢球和一个实际复杂结构件冷却降温过程温度场,分别与解析解和ANSYS计算结果进行了对比,模拟结果均吻合良好。
The correct calculation of the temperature field always has an important guiding function in the quality and prediction of the defect of molded parts in the cooling process.This paper introduces the mathematical model and the discretization process based on the finite element method (FEM) of the transient heat conduction equation,and the key technologies of transient temperature field numerical simulation together with the whole design idea and algorithm flowchart of the self-developed program are also introduced.The temperature field of a complex part and a calculation of the temperature distribution of a steel ball and an actual complex structure were calculated by the self-developed program,which matches well with the results calculated by analytical solution and ANSYS.
出处
《铸造》
CAS
CSCD
北大核心
2013年第9期850-854,共5页
Foundry
基金
教育部新世纪优秀人才支持计划(NCET-09-0396)
国家数控重大专项(2012ZX04010-031
2011ZX04014-052
2012ZX04012-011)
中央高校基本科研业务费资助(HUST:2012TS010)
湖北省自然科学基金(2011CDB279)
湖北自然科学基金创新群体项目(2010CDA067)
关键词
温度场
FEM
数值计算
temperature field
FEM
numerical calculation