期刊文献+

基于等几何实体单元的薄壁结构分析

Analysis of thin-walled structures based on isogeometric solid element
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摘要 与传统有限元不同,等几何分析采用CAD模型中的样条基函数作为有限元分析的形函数,很容易提高未知场的连续阶,达到较高的计算精度和效率。本文采用等几何实体单元对四边固定板和悬臂板分别在分布荷载和集中荷载作用下的挠度进行了分析计算,计算过程中采用h-方法和p-方法进行细分,并将结果与解析解进行了比较。计算结果表明,采用等几何实体单元对薄板结构的分析具有很好的收敛性;不同网格所得到的计算精度可为类似板结构优化分析中单元网格的阶数和密度的选取提供参考。
出处 《制造业自动化》 北大核心 2013年第22期87-90,共4页 Manufacturing Automation
基金 国家自然科学基金:精密微小结构表面拓扑形貌优化设计理论研究(51375140) 中央高校基本科研业务费专项资金(BZS/12B101-21)
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