基于有限元仿真技术的复合材料模具工装数字化设计

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Digital design and analysis of molding tooling for composite components

SUN Siyuan 1* ，YANGYong²，HANKai 2 ，LIWeibo²（Qingdao University of Technology，Qingdao ）

Abstract：Molds playacrucialrole inthe manufacturing processofcompositeproducts.Theutilizationofdigitaldesignand manufacturingapproaches cannotablyenhancetheeficiencyandqualityofcompositemolding.Basedon finiteelement simulation，thisresearch conducted structural optimizationdesign forthecuring molding moldofC-beamcomposite members inautoclaveandinnovativelyputforwardadigitalmoldsurfaceoptimizationdesign methodbasedonSolidWorksforthe mold.Through thedigital design andoptimizationofthe mold structure，the forming defects caused bythe uneven heatingof the curing temperature during the hot pressing processof thecomposite materials were addressd.The COMSOL numerical simulationmethodwas also employedinthis study，andtheaccuracyof the simulationresults wasverifiedthrough experiments.Meanwhile，byadjustingthenumberofbaffles tooptimizethefluidflow，theoptimizationeffectsofdiferentoptimizationschemes wereanalyzed，andanoptimalscheme was eventualldetermined.Aftertheimplementationofthissheme，the temperature variance was reduced by 23% compared with that before optimization，which significantly improved the temperature uniformity during the heating process of the composite.

Keywords： composite material; autoclave molding; mold structure optimization; COMSOL simulation

1引言

随着现代制造业的快速发展，树脂基复合材料因其轻质、高强、耐腐蚀等特性在航空航天、汽车、船舶等领域得到广泛应用[1-3]。（剩余8424字）