基于APDL高速铝合金车体参数化建模

Reasearch on Parameter Modeling for Aluminum Alloy Rail Vehicle Body

基于ANSYS的参数化编程语言APDL,以车体主要板厚度、车体高度、长度、窗体参数等主要结构尺寸为参数,采用模块化设计理念,建立了高速铝合金车底架、侧墙、顶板、端墙等参数化几何模型和有限元模型,并组合成整体模型.本研究可通过简单的改变参数产生不同的车体几何模型和不同网格密度的有限元模型,以适应不同问题数值仿真的要求,并为对车体的优化设计打下基础.研究表明,铝合金车体的参数化建模极大的提高了建模的效率和精度,可简单改变参数得到不同模型以适应不同问题的要求.

The prametric geometry and finite element models of constructed base on APDL （ANSYS Parametric Design Language tablished with the parameters of vehicle length and height, plate vehicle bottom, side wall and top plate are ）, and a full vehicle prametric model is esthickness, elementsize, etc. The prametric geometry and finite element models of the full vehicle can easily be changed by performing the prametric program again, so that it can adapt for various CAE problems and perform design optimization of full vehicle. This research shows that the prametric models of the vehicle body has a significantly enhanced the efficiency and precision of model construction.