Cooperative decoupling control of temperature field of large-size and cutting-edge aluminum alloy forgings
HUANG Jia-qing
SHEN Ling
HE Jian-jun
WU Jing-yi
Abstract：The temperature inside a large vertical quenching furnace is the primary factor determining the performance of large-scale advanced aluminum alloy forgings.To address the issue that traditional quenching furnace temperature con-trol methods cannot overcome the effects of multi-zone coupled heat transfer,thereby failing to achieve the objective of uniform temperature field control over large scales,this paper first constructs a temperature field model inside the furnace.It proposes a time-domain finite element extrapolation method,which uses the finite element method to calculate tem-perature results at different time steps.By combining these results with the derived time-domain extrapolation formula,it achieves high-precision,high-efficiency temperature prediction for aluminum alloy forgings.Subsequently,it intro-duces a variable-structure neural network integrating fast clustering of characteristic vectors and competitive learning.This network,combined with the predicted temperatures,adjusts the controller parameters in real time to achieve multi-zone coordinated decoupling control.Finally,simulation experiments verify that the proposed method achieves a temperature control error of less than±2℃.
Keywords：large-size aluminumlarge scale temperature fieldfinite element methodextrapolationintelligent decou-pling
Publication Date：2025-10-30
Online Publishing Date：2025-11-13(First online date of this platform, not the publication date of the document)
Pages：11( 1914-1924 )