汽车安全带固定点失效分析及结构优化

Failure Analysis and Structure Optimization of Seatbelt Anchorage for Vehicle

以乘用车后排安全带固定点为对象,基于安全带固定点强度试验结果,通过有限元方法建立模型,简化并调试有限元模型,进行试验对标分析。经过对标后,有限元分析结果与试验结果基本吻合。然后基于对标后的有限元模型对结构进行优化,提高安全带固定点强度,提出优化方案,并通过试验验证,满足法规要求。通过利用CAE分析技术在产品开发过程中的应用,有效找到问题原因并有针对性地加以优化,从而缩短开发周期和节约成本。

Taking the anchorage of rear seatbelt of vehicle as the object,based on the strength test result of seatbelt anchorage,a model was established by finite element method,the finite element model was simplified and debugged,and calibration analysis was carried out according to test results.After calibration,the finite element analysis results are basically consistent with the experimental results.Then,based on the finite element model after calibration,the structure was optimized to improve the strength of the anchorage of the seatbelt.The optimization scheme was verified by tests.Through the application of CAE analysis technology in the process of product development,the problem causes can be effectively found and optimized in a targeted way,thus shortening the development cycle and saving costs.