摘要
综述了带旋转自由度膜单元的发展历史和研究现状。重点介绍了几种具有代表性的单元。这些单元引入了旋转自由度，大大改善了膜单元的性能，解决了许多工程实践中的问题；而且它们基本都做到了列式简洁、收敛、可靠，并各有自己的优点。
In this paper,the history and status of the research on the membrane elements with rotational degrees of freedom are summarized.Several representative elements are introduced.These elements have introduced rotational degrees of freedom,which improved their performance and solved many practical engineering problems;moreover,these elements have concise formulations,high precision,reliability each of which has its distinct merits.
关键词
有限元
位移模式
旋转自由度
膜单元
结构力学
finite elements,displacement models,rotational degrees of freedom,membrane elements,conforming,non-conforming
