基于响应面模型的铝合金壁板挤压成形优化设计  

Optimal Design of Aluminum Alloy Flat-plate Extrusion Process Based on the Response Surface Model

作　　者：胡龙飞[1] 刘全坤[1] 王成勇[1] 胡成亮[1] 

机构地区：[1]合肥工业大学,合肥230009

出　　处：《中国机械工程》2008年第13期1630-1633,共4页China Mechanical Engineering

基　　金：安徽省自然科学基金资助项目(070414146);高等学校博士学科点专项科研基金资助项目(20030359002)

摘　　要：针对铝合金壁板挤压成形中出现的挤压能耗过大、制品缺陷问题,对6063铝合金壁板挤压过程进行多目标优化设计。结合正交试验设计和响应面设计方法,建立挤压成形参数与评价指标的二阶响应面模型。运用遗传算法和模拟退火算法,实施最优个体保留策略,开发出遗传模拟退火程序,对响应面模型进行寻优,获得24组Pareto最优解。通过定义满意度函数,选出了符合要求的满意解。为验证优化结果的真实性,对满意解进行仿真验证,仿真结果与优化结果相吻合。Considering the oversize extrusion force and product defects in the extrusion forming process of aluminum alloy flat-plate,multi-objective optimization design was presented for 6063 aluminum alloy flat-plate.Firstly,the orthogonal experimental design and response surface design were combined together to build the second order response surface model between the forming parameters and evaluating indicators.Then,using genetic algorithm,simulated annealing algorithm and the optimized reserved strategy,the genetic simulated annealing program was developed to optimize this model.From which,the 24 evenly distributed Pareto-optimal solutions were obtained.In the last,defining a satisfactory degree function,the satisfactory solution was selected.Meanwhile,in order to verify the rationality of optimization result,the simulation verification were carried out,the results show that simulation results are in accord with optimal ones.

关 键 词：壁板 挤压 响应面法 遗传算法 模拟退火算法 

分 类 号：TG376.2[金属学及工艺—金属压力加工]