钢铝混合铆接漏斗车铆钉建模方法研究  

Research on Modeling Methods for Riveting Steel-Aluminum Hybrid Hopper Car

作　　者：杨洪波 付茂海[1] 夏康星 刘元鹏 YANG Hong-bo;FU Mao-hai;XIA Kang-xing;LIU Yuan-peng(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机械工程与自动化》2024年第6期99-101,共3页Mechanical Engineering & Automation

摘　　要：利用Hypermesh软件和ANSYS软件对钢铝混合铆接结构进行联合仿真,通过对比分析MPC接触算法和梁单元模拟两种方法与实体建模方法之间结果的差异,寻找较为准确模拟铆钉结构的有限元分析方法。研究结果表明:在三种铆接连接中铆钉常见受力工况下,和实体单元模型相比,梁单元模型最小误差为2.44%,MPC接触算法模型最小误差为6.46%。因此按照梁单元模型模拟铆钉更为贴近实际情况,同时能够节省大量计算时间,提高计算效率。Hypermesh software and ANSYS software were used to co-simulate the steel-aluminum hybrid riveted structure,this study contrasts and analyzes the discrepancies in outcomes between the MPC contact algorithm and beam element simulation approaches versus the solid modeling technique.The objective is to identify a more accurate method for simulating rivets structural finite element analysis.The findings reveal that,under typical loading conditions for riveted connections,compared to the solid element model,the minimum error for the beam element model is 2.44%,while the MPC contact algorithm model exhibits a minimum error of 6.46%.Consequently,employing the beam element model for simulating rivets is deemed to be more in line with true scenarios.At the same time,it can save a lot of computing time and improve computing efficiency.

关 键 词：钢铝混合铆接结构 铆钉 剪切拉伸 有限元法 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]