高精度非线性板簧建模用于NVH分析
福特汽车使用Simpack专家级多体动力学仿真技术,并集成Abaqus非线性仿真技术建立高精度、非线性的皮卡车板簧模型,并在整车环境下运行加速分析,对动力总成系统进行NVH分析。
本文发表于2015年NWC会议,文章中提到的Simpack和Abaqus联合仿真技术在当时是使用脚本实现的。现在的Simpack版本中已经提供了与Abaqus联合仿真的直接接口,可以方便地建立两者联合仿真模型,实现多体仿真中考虑几何非线性、材料非线性、接触碰撞塑性变形等情况。文中提到的Simbeam建模技术,是Simpack离散梁建模方法,支持欧拉梁和铁摩辛柯梁,不需要借助有限元软件,在Simpack中通过参数输入能快速方便地建立线性和非线性柔性梁,可以用于汽车板簧,以及风机叶片、实体绳索、传动轴等部件的建模和仿真。
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首次发布时间:2020-09-04
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