差分进化算法对混凝土热学参数的反分析

Thermodynamic parameters of concrete are the significant condition in the preventing mass concrete cracking computation. The concrete inversion problem of Thermodynamic parameters is a multi-parameter optimization problem. Differential Evolution is one of the optimization method of evolutionary and developed from GA (genetic algorithm). In the paper, non-steady temperature field finite element simulation and DE (Differential Evolution)were combined together to establish DE inverse solution for concrete thermodynamic parameter including equivalent heat source method to realize water-pipe cooling simulation. The procedure was implemented in mode with high computational efficiency and being high accuracy. It is an effective way to select thermal parameters instead of empirical formula and provide recommend solution for engineering.