期刊
APPLIED SCIENCES-BASEL
卷 12, 期 16, 页码 -出版社
MDPI
DOI: 10.3390/app12168208
关键词
hot strip rolling; limit specifications; intelligent optimization; neural-network; genetic algorithm stability
类别
资金
- Fundamental Research Funds for the Central Universities [FRF-AT-20-06]
This study focuses on the hot strip rolling process and proposes optimal rolling suggestions using neural networks and genetic algorithms. The research shows that the optimized process parameters can improve the rolling stability and meet the limit specifications.
Aiming at the problems of large rolling deviation and low stability in limit specification of hot strip rolling, the optimal rolling suggestions were obtained based on back propagation (BP) neural network and genetic algorithm. According to equipment state and strip specification to select excellent sample set, in the sample set based on the data of application of neural network to build the mapping relationship between process parameters and the rolling stability, limit specifications of the mapping model is set up, and then using the genetic algorithm for the search of this mapping model, the search model of rolling stability of ideal point, determine a set of process parameters optimal advice accordingly. Taking the rolling of MRTRG00201_1276_3 as an example, a set of optimal process parameters are obtained by simulating rolling of MRTRG00201_1276_3. Then the sample distribution and rolling stability of each process are analyzed in turn. The results show that the process parameters obtained by optimizing the model accord with the distribution law of rolling samples, can obtain high rolling stability, and can play a guiding role in limit specification rolling.
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