国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In the actual industrial process, the inverse problem exists in a wide range of thermal conductivity of various application fields. Due to the harsh environment of continuous casting production to continuous casting billet temperature caused great difficulties, resulting in continuous casting mold inverse heat conduction problem is difficult to solve. On the basis of studies on the thermal conductivity inversion algorithm, based on limited measurement points continuous casting mold by thermal conduction heat flux density inversion algorithm can find the mold, to casting optimization and control to provide evidence. On the basis of the establishment of a continuous casting inverse heat conduction problem model, based on the inverse problem raised conduction heat casting mold quasi-Newton method for solving the improved algorithm can effectively use the information in the current search process, through the approximation of the objective function second derivative to speed up the search efficiency of the algorithm, using a step size selection rules Wolf overcomes the disadvantages of the slow convergence rate and the algorithm without calculating Hessen matrix, can effectively reduce the complexity of calculation. Experimental results show that the algorithm can quickly and effectively solve the problem. The method for solving continuous casting mold inverse heat conduction problem is feasible and effective.