CAJ | 학술논문

针对曲肘式注塑机的合模机构在锁模状态下,模板变形会影响注塑制品质量的问题,将正交试验设计方法和有限元分析软件相结合,对合模机构的整体结构进行优化设计.利用有限元软件模拟正交试验,确定了影响模板变形的关键因素和非关键因素,建立了合模机构的优化设计的数学模型.经过优化后的合模机构无论是在减小模板的变形、提高模板间的平行度精度及降低最大等效应力上,还是在材料的节省上都取得了很好的效果,并且采用这种方法还可以明显减少有限元计算的次数、提高整个结构优化过程的效率.最后根据优化结果得到了更加合理的设计方案.
침대곡주식주소궤적합모궤구재쇄모상태하,모판변형회영향주소제품질량적문제,장정교시험설계방법화유한원분석연건상결합,대합모궤구적정체결구진행우화설계.이용유한원연건모의정교시험,학정료영향모판변형적관건인소화비관건인소,건립료합모궤구적우화설계적수학모형.경과우화후적합모궤구무론시재감소모판적변형、제고모판간적평행도정도급강저최대등효응력상,환시재재료적절성상도취득료흔호적효과,병차채용저충방법환가이명현감소유한원계산적차수、제고정개결구우화과정적효솔.최후근거우화결과득도료경가합리적설계방안.
The platen deformation influences the injection products quality when the clamping mechanism is in clamping state. To solve the problem,combining orthogonal design with FEA software,the whole structure of the clamping mechanism was systemati-cally optimized. Through the FEA simulation of orthogonal experiments,the key factors that affected the platen deformation were de-termined,and non-critical factors were discarded. So a simplified mathematics model for optimization was formulated and genetic algo-rithm was used to find the solution. The results show that the platen deformation can be reduced with a light-weight material design. And the simulation cycles are also minimized with the orthogonal design. Finally,a more reasonable structure design scheme was ob-tained for industrial purpose.