Simulation and Analysis of Hot Riveting Process of Lamp Parts Based on HyperMesh
FANG Xianghai
SONG Zengxiang
Abstract：Aiming at the problems of high cost and insufficient strength caused by the empirical design of riveting column layout in the hot riveting process of automobile lamps,finite element simulation analysis is carried out based on HyperMesh to investigate the influence of riveting parameters on the structural performance.By constructing a three-dimensional model to simulate the hot riveting process,the dynamic response of size change,material properties and axial load on the riveted structure is systematically studied.The results show that:the size of riveted parts in the range of 30 mm×30 mm to 100 mm×100 mm,each axial simulation data with the increase in size is a significant upward trend,indicating that the axial load characteristics of the existence of significant anisotropy;hot riveting process on the structural performance of the impact of the size-dependent,material properties comparison shows that the AL material of each axial response value is higher than the average of the FR4 material by 38.6%,revealing the key role of PCB substrate material selection on structural stability.The mapping relationship between process parameters and mechanical response is quantified through regression analysis,which provides data support for multidisciplinary collaborative optimization of rivet column layout.The conclusion of the study has a guiding value for improving the rationality of the design of hot riveting structure of headlights and reducing the manufacturing cost.
Keywords：HyperMeshfinite element analysisstress and vibrationrivet column layout optimization
Publication Date：2025-09-25
Online Publishing Date：2025-10-14(First online date of this platform, not the publication date of the document)
Pages：8( 50-57 )