有限元仿真分析软件中建模的多态机理研究

有限元仿真分析软件是一种广泛应用于工程技术各领域的科学计算软件,而针对实际问题建立合适的模型是应用这类软件的首要工作。通常,为了使分析结果尽可能精确,研究人员希望建立无限接近真实形体的模型,但真实形体中某些特征的存在可能对网格质量和计算结果造成严重的消极影响,甚至还会导致问题不可解。同时过于复杂的模型也将消耗大量计算时间。为建立合适模型,提高计算效率,将多态模型概念引入有限元领域,就模型态与计算精度之间的关系进行了研究并得出初步结论。

Research on Multi-state Model and Its Application in Modeling of Finite Element Simulation Software

Finite element simulation analysis software, as some kind of scientific calculation software, is widely applied in various engineering fields. To use this kind of software, proper models should be built first. Usually, researchers tend to build an identical model as the real one in order to get most accurate results. Some features of the real model may bring negative effects to girding and computing and even make the problem insolvable. An over-complex model will also cost a quantity of time computing. The concept of multi-state model was introduced into finite element analysis field to give guidance to building proper model for analysis and improve the analysis efficiency.