摘要
建立了一种基于正交试验与数值模拟的木塑异型材挤出机头流道的设计方法,其主要原理是:在结合木塑复合材料流变行为的基础上,将异型材挤出机头流道的主要几何参数定义为正交试验因素,利用正交设计方法对这些几何参数进行试验安排;使用Inventor软件三维参数化尺寸驱动系统实现流道模型的迅速建立;通过专业计算流体力学有限元分析软件Polyflow完成机头流道内熔体的模拟计算和仿真分析;选择适当的评价标准对模拟结果进行正交优化,最终获得机头流道的合理参数。依据这种方法,对立柱木塑异型材进行了机头流道的设计,最终得到理想的设计结果。
In this paper, a design method for a profile die runner was developed based on orthogonal test and numerical simulation. The procedure was as follows： the main parameters of the extrusion flow were defined as the experimental factors, a simulation model was formulated using Inventor software, and the situation of plastic melt flowing in the profile dies was simulated through Polyflow as a finite element analysis software. The appropriate criterion was selected to evaluate the results of orthogonal test and the parameters were optimized repeatedly, then the reasonable parameters were gained. Based on this method, colunm-sbaped extrusion die for wood-plastic composite was designed and optimized, and eventually the ideal design results were obtained.
出处
《中国塑料》
CAS
CSCD
北大核心
2010年第10期94-99,共6页
China Plastics
基金
2009年北京市教委共建项目
关键词
正交试验
数值模拟
异型材
机头
流道
木塑复合材料
orthogonal test
numerical simulation
profile
die
runner
wood-plastic composite
