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选矿试验中,当试验点接近最优区时,目标函数(指标)与自变量(试验因素)之间常呈二次函数关系,即响应面常为二次曲面。若根据二次模型特性判断其响应曲面的形状,对寻找和控制最佳条件是有益的。关于二次回归模型的试验设计,已有文献[1]介绍,本文则介绍二次模型的特性分析(即二次曲面的形状判别)方法及其应用。
Mineral processing test, when the test point close to the optimal zone, the objective function (index) and independent variables (experimental factors) often quadratic function relationship between the response surface often quadratic surface. Judging the shape of the response surface according to the quadratic model property is beneficial to finding and controlling the optimal conditions. On the second regression model of the experimental design, the literature [1] Introduction, this article introduces the quadratic model of the characteristics of the analysis (that is, the quadric surface shape discrimination) method and its application.