共查询到18条相似文献,搜索用时 89 毫秒
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冷连轧负荷分配最优化对于提高冷轧带钢的产量和质量具有至关重要的作用。在研究蚁群算法优缺点的基础上,首次提出了将遗传算法和蚁群算法相融合的GA ACA优化算法应用于冷连轧负荷分配的优化。该算法采用遗传算法生成初始负荷分配,利用蚁群算法求取最优化分配结果,优势互补,具有计算精度高、速度快等优点,适合于负荷分配的在线应用。试验对比数据证明了该方法的有效性,为冷连轧负荷分配的优化提供了一种新的方法。 相似文献
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综述了热连轧带钢生产中负荷分配方法的发展,阐明了各种分配方法的优缺点,为热连轧精轧机组合分配各机架的压下量提供了参考,并叙述了热连轧负荷分配的发展方向。 相似文献
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在考虑轧机设备能力限制、提高产量和产品质量、减少能耗的基础上,建立了按功率最大化轧制策略的冷连轧机轧制负荷分配优化数学模型,并开发了MATLAB程序.通过仿真实例证明,该算法计算速度快、精度高,克服了传统的负荷分配模型中求解非线性方程组时对初值要求苛刻、计算速度慢的缺点,适用于冷连轧机初始压下分配和轧制规程的离线模拟计... 相似文献
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本文以铝板带冷轧机轧制规程为研究对象,应用遗传算法对轧制规程进行优化设计。首先,介绍了遗传算法的基本原理和基本步骤;其次,建立系统模型及介绍遗传算法实现的具体步骤。结果比较表明,该方法优化效果好,适合在实际中应用。 相似文献
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针对多目标优化算法中综合目标函数权值难以确定的问题,通过对偏好的数学量化,采用数值分析的方法,构造了6种不同的偏好函数,建立了物理规划(physical programming)数学模型,然后以遗传算法为寻优工具,实现一种更加灵活更加适合于工程技术人员的交互式多目标优化算法。结合某冷轧厂实际的轧制规程优化过程,选取等功率裕量、轧制总能耗及各机架打滑因子为目标函数,运用基于遗传算法的PP进行优化计算。结果表明,优化后的轧制规程很好地实现了各机架等功率负荷分配,降低了打滑出现的概率,大大提高了板材表面质量和成品成材率。 相似文献
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Based on rolling feature of continuous tandem cold rolling mill, such as multi-variable, strong coupling, non-linear, analyze and set the equal relative load, preventing slippage and profile well as the multi-objective optimization goal, BP neural network with self-learning function is adopted to replace traditional rolling force models and then Levenberg-Marquardt algorithm is adopted to predict the rolling force. Then use multi-objective fuzzy theory to solve the problem of multi-objective optimization of tandem cold rolling schedule. With the example of 1370mm tandem cold rolling, the rolling schedule of the common rolling, the single-object optimization design and the multi-objective fuzzy optimization design are compared with each other, optimization result shows the proposed optimization method decreases the value of three objective functions simultaneous. The performance of the optimal rolling schedule is satisfying and it is promising. 相似文献
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Load distribution is the foundation of shape control and gauge control, in which it is necessary to take into account the shape control ability of TCM (tandem cold mill) for strip shape and gauge quality. First, the objective function of generalized shape and gauge decoupling load distribution optimization was established, which considered the rolling force characteristics of the first and last stands in TCM, the relative power, and the TCM shape control ability. Then, IGA (immune genetic algorithm) was used to accomplish this multi objective load distribution optimization for TCM. After simulation and comparison with the practical load distribution strategy in one tandem cold mill, generalized shape and gauge decoupling load distribution optimization on the basis of IGA approved good ability of optimizing shape control and gauge control simultaneously. 相似文献