统计-模糊分析法预测16Mn钢中厚板的力学性能

Mechanical Properties Predication of Steel 16Mn Medium and Heavy Plate using Statistic-Fuzzy Analysis Method

根据 2 4 5 0二辊轧机 2 4 5 0四辊轧机轧制 16Mn中厚板的开轧和终轧温度、二辊轧机和四辊轧机的压下量等主要工艺参数的测定值和钢板力学性能的测定值 ,利用统计回归分析所得的相关数学模型结合模糊聚类分析 模糊识别分析数学模型 ,建立了预测中厚板屈服强度σs 和抗拉强度σb 的相关数学模型 ,结果表明 ,16Mn钢中厚板材的屈服强度预测值和实测值的相对误差为 2 .9%～ 7.2 % ,抗拉强度σb 的相对误差为0 .1%～ 6 .9%。

Based on measured value of main parameters of rolling 16Mn medium and heavy plate at 2450 two high mill and 2450 four high mill such as start and finish rolling temperature, reduction in pass at two high and four high mill, the mathematical model for predication of yield and tensile strength of medium and heavy plate has been established by relative mathematical model obtained by statistic regression analysis combined with fuzzy clustering and fuzzy identification mathematical model. The results show that the relative error between predicting value and measured value of yield strength σs of 16Mn medium and heavy plate is 2.9%～7.2%, and the relative error of tensile strength is 0.1%～6.9%.