基于响应面法的汽车保险杠注塑方案分析与优化
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摘要
为了提高产品质量和生产效率,对汽车保险杠注塑模浇注系统的不确定性参数进行了研究。首先建立汽车保险杠三维模型,设计浇注系统,将模具表面温度、熔体温度以及保压时间作为变化因素,构建响应面模型,将模具成型翘曲量定义为目标函数,并以填充时间、速度/压力切换时的压力为约束函数,用响应面法和遗传算法相结合的方法进行优化。结果表明:两种方法相结合可以显著提高产品质量和生产效率,对不确定性问题研究提供了一种新方法。
In order to improve product quality and production efficiency, the uncertain parameters of injection mould pouring system for automobile bumper were studied. Firstly, the threedimensional model of automobile bumper is established and the gating system is designed. The surface temperature, melt temperature and holding time of the die are taken as the changing factors, and the response surface model is constructed. The warpage of the die is defined as the objective function. With filling time, velocity/pressure switching pressure as constraint function, response surface method and genetic algorithm are combined to optimize the design. The results show that the combination of the two methods can significantly improve product quality and production efficiency, which provides a new method for the study of uncertainty problems.
In order to improve product quality and production efficiency, the uncertain parameters of injection mould pouring system for automobile bumper were studied. Firstly, the threedimensional model of automobile bumper is established and the gating system is designed. The surface temperature, melt temperature and holding time of the die are taken as the changing factors, and the response surface model is constructed. The warpage of the die is defined as the objective function. With filling time, velocity/pressure switching pressure as constraint function, response surface method and genetic algorithm are combined to optimize the design. The results show that the combination of the two methods can significantly improve product quality and production efficiency, which provides a new method for the study of uncertainty problems.
引文
[1]申长雨,王丽霞,张勤星.神经网络与混合遗传算法结合的注塑成型工艺优化[J].高分子材料科学与工程,2005,21(5):23-27.
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[10]周应国,申长雨,陈静波,等.工艺参数对注塑制品翘曲影响的CAE分析[J].工程塑料应用,2006,34(11):28-31.
[11]朱兴建,俞建新,徐以国,等.基于Moldflow的汽车内饰翘曲变形优化方法[J].塑料,2014,43(5):102-105.
[12]白中浩,颜强,龙瑶,等.基于独立碰撞工况的儿童约束系统参数优化[J].湖南大学学报,2012,39(11):46-51.
[13]Papilla M.Accuracy of response surface approximations for weight equations based on structural optimization[D].Gainesville:University of Florida,2001.
[2]黄娜斌,江波,张志莲,等.Taguchi DOE实验设计法注射成型工艺参数优化[J].工程塑料应用,2007,35(6):28-32.
[3]江毅,余稀,肖任贤,等.基于Moldflow的时序进料系统在消除熔接痕中的应用[J].塑料工业,2011,39(2):49-52.
[4]丛穆,江梅,陈丽萍.Moldflow技术在汽车前保险杠成型分析中的应用[J].汽车技术,2011,42(5):51-55.
[5]吴书婷,刘泓滨,李雪峰.基于正交试验法的汽车保险杠注塑成型工艺参数多目标优化研究[J].塑料工业,2012,40(8):60-64.
[6]吴晓,薛春娥,尹浩.汽车座椅靠背注塑模具设计[J].工程塑料应用,2014,42(10):76-78.
[7]曾珠,叶家飞.大型汽车保险杠注塑模具设计及浇注系统优化分析[J].塑料工业,2016,44(11):88-91.
[8]张学良,张学义,任丽华.基于Moldflow的汽车大型覆盖件注塑成型工艺研究[J].塑料科技,2011,39(7):87-90.
[9]余玲,夏秉梅,李光明,等.基于Moldflow的汽车保险杠热流道浇注系统方案对比[J].塑料,2015,44(5):50-53.
[10]周应国,申长雨,陈静波,等.工艺参数对注塑制品翘曲影响的CAE分析[J].工程塑料应用,2006,34(11):28-31.
[11]朱兴建,俞建新,徐以国,等.基于Moldflow的汽车内饰翘曲变形优化方法[J].塑料,2014,43(5):102-105.
[12]白中浩,颜强,龙瑶,等.基于独立碰撞工况的儿童约束系统参数优化[J].湖南大学学报,2012,39(11):46-51.
[13]Papilla M.Accuracy of response surface approximations for weight equations based on structural optimization[D].Gainesville:University of Florida,2001.