基于时间序列模型的UOE焊管生产过程多目标优化

摘要

为有效实现UOE焊管生产过程的优化计算，提出了一种综合考虑产品质量、成本、库存等多个指标的优化模型及满意求解算法。首先，考虑原料库存对焊管过程的影响，将库存成本作为目标函数，库存量作为约束引入优化模型。然后，针对模型具有多个质量边界约束的特点，利用焊管生产过程中质量约束边界的可调性，引入满意优化理论中的“软约束”调整约束边界，以改善该优化问题求解的可行性。最后，引入时间序列模型中的加权移动平均法和一次指数平滑法进行寻优，并将提出的模型和算法应用于指导焊管生产。研究结果表明：所提出的优化模型及求解算法有效地提高了UOE生产过程的作业效率，优化结果既能满足焊管工艺技术要求，也能有效降低生产过程异常和生产成本。%The calculation for the optimization of the effective realization of UOE welded pipe production process, the algorithm for solving the optimization model and with a comprehensive consideration of the quality of the products, cost, inventory and other multiple performance measures. Firstly, considering the effects of welding process of raw materials inventory, the inventory cost as the objective function, the inventory was introduced as constraint optimization model. then, according to the characteristics of model has multiple quality constraints, using quality constraints during the process of welded pipe production boundary adjustability, introducing satisfactory optimization theory in the“soft constraints”adjusting the constraint boundary, to improve the feasibility of solving the optimization problem. finally, weighted moving average time series model is introduced and an exponential smoothing method is used to search the sorrow, application model and algorithm and proposed to guide the welded pipe production. The results show that: the proposed optimization model and solving algorithm can effectively improve the efficiency of UOE production process, the optimization results can meet the requirements of welding technology, but also can effectively reduce production process and production cost.