Abstract: In order to obtain precision plastics part，the accurate prediction of mold deformation is necessary for large-scale injection mold.But now no available software is powerful enough to finish the prediction work independently.One acceptable way is using more than one software to do a coupling analysis，such as do an injection molding simulation with a special software to get basic data and then based on these data to do a structural analysis with ANSYS.But the key problem is how these data could be input into ANSYS and whether these data are acceptable by ANSYS.An integrated analysis method for part molding and its mold structural mechanics was presented using different softwares，based on identical meshes formed originally from CAD model.By use of the identical meshes，the data of molding and structural analysis were point-to-point matched and could be shared completely between them.With one self-developed polymer injection molding CAE software and ANSYS，an integrated analysis of one real space product was done.In this study，the mold deformation caused simultaneously or independently by maximum injection pressure and temperature was analyzed，and by which mold stiffness was checked and improved while the deformation of mold structure and parts was controlled in an acceptable range.

Key words: integrated analysis, identical mesh, injection molding, structural analysis

摘要： 针对精密注射成型对模具变形准确预测的需求，基于CAD模型生成了统一的塑件成型分析与模具结构分析网格，实现了成型分析结果数据到结构分析的无缝输入。利用自主开发的注射成型过程仿真系统和ANSYS软件，进行了一体化分析研究。针对某型号航天产品的研发，分别开展了模具在最大注射压力、热应力及二者共同作用下的模具变形CAE分析，有效校核了模具的刚度，保证了产品的顺利成型与尺寸精度。

关键词: 一体化分析, 统一网格, 注射成型, 结构分析