摘要
采用三维大变形热力耦合刚塑性有限元法对平板轧制咬入阶段进行仿真,仿真条件与实际轧制过程一致。将仿真结果与实际生产数据进行比较,结果表明采用该方法对非稳态轧制过程进行仿真是可行并且可靠的。研究了非稳态阶段的轧制力分布特点和轧件的变形特点,分析了轧件表面温度对头部厚跃现象的影响规律。
The biting stage of the strip roiling was simulated by using the three--dimensional large deformation thermo--mechanical coupled rigid--plastic finite element methods. The conditions in simulation were consistent with those in practical rolling processes. The simulated result was compared with the real process data, which shows that the method used herein to simulate the unsteady rolling state is practicable and reliable. Finally, the roll force distribution and the rolled piece deformation in the bite stage were studied and the rolled piece temperature influence on strip--head bending was analyzed.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2008年第15期1875-1878,共4页
China Mechanical Engineering
基金
国家杰出青年基金资助项目(50429501)
关键词
刚塑性有限元法
热力耦合
非稳态轧制
咬入阶段
rigid--plastic finite element method
thermo--mechanical coupling
unsteady staterolling
biting-- stage
