高强度钢板热成形三维温度场数值模拟分析  

Numerical simulation of 3D temperature field in hot forming of high strength steel

作　　者：史栋勇[1,2] 盈亮[3] 胡平[1,3] 申国哲[3] 武文华[2] 姜大鑫[3] 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024 [2]大连理工大学工程力学系,辽宁大连116024 [3]大连理工大学汽车工程学院,辽宁大连116024

出　　处：《吉林大学学报（工学版）》2014年第4期946-952,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展计划项目(2010CB832700);国家科技支撑计划项目(2013BAG05B01);中央高校基本科研业务费专项项目(DUT14RC(3)032)

摘　　要：基于三维温度场有限元理论,考虑高强度钢板实际热成形过程中板料和水冷模具的温度边界条件,开发了用于热成形的KMAS_HF(King mesh analysis system_Hot forming)温度场分析模块,其中分别采用壳体单元和三维四面体单元模拟板料和模具温度场,将板料相变潜热释放引入温度场分析过程中。以典型U型试件为例,对其热成形过程进行数值模拟分析,并与实际试验进行对比研究。结果表明:板料与三维实体模具温度变化的数值模拟结果与试验结果一致,该模块对于热成形温度场分析预测具有重要指导意义。Based on the finite element theory for 3D temperature field, a temperature field analysis module, King Mesh Analysis SystemHot Forming （KMAS_HF）, was developed. In this module the blank and tools were modeled by shell and 3D tetrahedral elements respectively. During the numerical simulation, the boundary conditions of the sheet metal and water-cooled tools in practical hot forming process were considered; the transformation latent heat release of the blank was introduced into the analysis of the temperature field. The hot forming process of a typical U-shaped part simulated using KMAS HF was compared with experiment. The numerical simulation result is in good agreement with the experimental result, which confirms that this module can accurately predict the temperature distribution in hot forming process.

关 键 词：车辆工程 高强度钢板 热成形 温度场 数值模拟 

分 类 号：U41[交通运输工程—道路与铁道工程] TH825[机械工程—仪器科学与技术]