ժҪ Taking the element specific-heat interpolation function into account, a one-dimensional (1-D) finite element temperature field model for the on-line control of the ultra fast cooling process was developed based on the heat transfer theory. This 1-D model was successfully implemented in one 4300 mm plate production line. To improve the calculation accuracy of this model, the temperature-dependent material properties inside an element were considered during the modeling process. Furthermore, in order to satisfy the real-time requirements of the on-line model, the variable bandwidth storage method and the Cholesky decomposition method were used in the programming to storage the data and carry out the numerical solution. The on-line application of the proposed model indicated that the deviation between the calculated cooling stop temperature and the measured one was less than ��15 ��.
Abstract��Taking the element specific-heat interpolation function into account, a one-dimensional (1-D) finite element temperature field model for the on-line control of the ultra fast cooling process was developed based on the heat transfer theory. This 1-D model was successfully implemented in one 4300 mm plate production line. To improve the calculation accuracy of this model, the temperature-dependent material properties inside an element were considered during the modeling process. Furthermore, in order to satisfy the real-time requirements of the on-line model, the variable bandwidth storage method and the Cholesky decomposition method were used in the programming to storage the data and carry out the numerical solution. The on-line application of the proposed model indicated that the deviation between the calculated cooling stop temperature and the measured one was less than ��15 ��.
Xiao-lin CHEN,Guo-dong WANG,Yong TIAN,Bing-xing WANG,Guo YUAN,Zhao-dong WANG. An On-line Finite Element Temperature Field Model for Plate Ultra Fast Cooling Process[J]. �й������ڿ���, 2014, 21(5): 481-487.
Xiao-lin CHEN,Guo-dong WANG,Yong TIAN,Bing-xing WANG,Guo YUAN,Zhao-dong WANG. An On-line Finite Element Temperature Field Model for Plate Ultra Fast Cooling Process. Chinese Journal of Iron and Steel, 2014, 21(5): 481-487.
2014, Vol. 21 
