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An optimized methodology for the creation of highly detailed finite element models of road vehicles for use in crash simulation

机译:用于在碰撞模拟中使用高度详细的有限元模型的优化方法,用于崩溃仿真

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This paper explains the improvements introduced in the existing methodology for the development of Finite Element (FE) models of road vehicles for crashworthiness purposes. The improvements were implemented during the creation of a highly detailed FE model of the frontal section of a 1997 Dodge Grand Caravan. Lessons learned during the reverse engineering are presented, with emphasis on the definition of the global and local coordinate systems. Detailed information regarding the time invested in the geometry discretization phase is offered. Also, the main aspects of the modeling phases are summarily explained. The pre-processor used for the development of this model was MSC/PATRAN, while the finite element solver was LS-DYNA. The resulting FE model of the frontal section of the 1997 Dodge Grand Caravan includes 334 parts, 196,447 nodes, 189,785 elements and 3,238 connections. Finally, the benefits of the improved methodology are discussed and several examples of quality achievements are commented.
机译:本文介绍了用于开发有限元(FE)型号的道路车辆的现有方法中所引入的改进。在1997年闪避大旅客的正面部分的高度详细FE模型中建立了改进。提出了在逆向工程中学到的经验教训,重点是全局和局部坐标系的定义。提供有关在几何离散化阶段投资的时间的详细信息。此外,可以概括了建模阶段的主要方面。用于开发此模型的预处理器是MSC / PARTAN,而有限元求解器是LS-DYNA。 1997年道奇大篷车的正面部分的由此产生的FE模型包括334份,196,447个节点,189,785个元素和3,238个连接。最后,讨论了改进方法的好处,并评论了质量成果的几个例子。

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