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首页> 外文期刊>Archives of Metallurgy and Materials >PROBLEMS OF MODELLING OF YIELD STRESS IN THE ON-LINE CONTROL OF HOT ROLLING PROCESSES
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PROBLEMS OF MODELLING OF YIELD STRESS IN THE ON-LINE CONTROL OF HOT ROLLING PROCESSES

机译：热轧过程在线控制中的屈服应力建模问题

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摘要

Model of the yield stress, applicable to the on-line control of hot steel plate rolling, is described in the paper. Developed model has a physical meaning. Three methods, based on an analysis of large number of experimental data, are applied for evaluation of coefficients in the model. These methods are approximation, optimization and artificial neural network. Yield stress was not measured directly. It was determined from the roll force measurements, using inverse calculations of Sims equation. The results for three groups of steels (two carbon-manganese steels and one niobium steel), are presented in the publication. The adaptation technique is described in the paper, as well. Application of the adaptation technique allows for immediate reaction of the system on the changes of yield stress. Experimental validation of the model confirmed its good accuracy and usefulness for the on-line control of the hot plate rolling process.
机译：本文描述了屈服应力模型，该模型适用于热轧钢板的在线控制。开发的模型具有物理意义。基于大量实验数据的分析，三种方法被用于评估模型中的系数。这些方法是近似，优化和人工神经网络。没有直接测量屈服应力。它是使用Sims方程的逆向计算从滚动力测量中确定的。该出版物提供了三组钢（两种碳锰钢和一种铌钢）的结果。本文还介绍了自适应技术。自适应技术的应用允许系统对屈服应力的变化立即做出反应。该模型的实验验证证实了其对热板轧制过程在线控制的良好准确性和实用性。

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