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薄壁件铆接装配变形有限元数值仿真分析与实验验证 预览

Numerical simulation analysis for deformation deviation and experimental verification for an antenna thin-wall parts considering riveting assembly with finite element method
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摘要 在薄壁件装配过程中,铆接装配会造成铆接装配偏差。针对铆接装配,建立了铆接装配理论变形模型,通过静态和瞬态仿真分析了4个铆钉的铆接装配件的铆接变形。同时,采用有限元仿真对整体的薄壁件装配结构进行装配变形偏差分析;且通过点的坐标变换法和空间直线拟合法处理了铆接试件的测点试验结果,并与仿真结果进行比较分析。结果表明,其仿真结果与薄壁件上关键点的变形偏差试验处理结果比较吻合,从而证明了理论分析、仿真结果和试验处理方法的正确性和有效性。通过以上薄壁件铆接装配变形偏差的研究,将为以后提高和改善大型薄壁件装配结构的装配精度提供理论和分析基础。 In the process of thin-wall parts assembly for an antenna,the parts assembly deformation deviation is occurring due to the riveting assembly.In view of the riveting assembly deformation problems,it can be analyzed through transient and static simulation.In this work,the theoretical deformation model for riveting assembly is established with round head rivet.The simulation analysis for riveting deformation is carried out with the riveting assembly piece including four rivets,which comparing with the measuring points experiment results of riveting test piece through dealing with the experimental data using the point coordinate transform method and the space line fitting method.Simultaneously,the deformation deviation of the overall thin-wall parts assembly structure is analyzed through finite element simulation;and its results are verified by the measuring experiment for riveting assembly with the deformation deviation of some key points on the thin-wall parts.Through the comparison analysis,it is shown that the simulation results agree well with the experimental results,which proves the correctness and effectiveness of the theoretical analysis,simulation results and the given experiment data processing method.Through the study on the riveting assembly for thin-wall parts,it will provide a theoretical foundation for improving thin-wall parts assembly quality of large antenna in future.
出处 《中南大学学报:英文版》 SCIE EI CAS CSCD 2018年第1期60-77,共18页 Journal of Central South University of Technology
基金 Project(51675100) supported by the National Natural Science Foundation of China Project(2016ZX04004008)supported by the National Numerical Control Equipment Major Project of China Project(6902002116) supported bythe Foundation of Certain Ministry of China
关键词 薄壁件装配 装配变形偏差 理论变形模型 有限元仿真 测点试验 thin-wall parts assembly assembly deformation deviation theoretical deformation model finite element simulation measuring experiment
作者简介 TANG Wen-cheng, PhD, Professor; Tel: +86–25–52090501–8403; E-mail: tangwc@seu.edu.cn, 230149296@seu.edu.cn
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