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本文通过在单元位移场上增加含内参的广义泡状位移方法，构造了一个具有旋转自由度的三角形膜元。由于直接从完全多项式中应用广义协调方法确定附加位移，有效地扩大了单元位移场的解空间，所构造的单元具有计算精度高、对计算网格畸变不敏感的优良特性。本文为改善位移元世态提供了一个简单有效的方法。
In this paper, a triangular membrane element with rotational degree of freedom is constructed by adding a generalized bubble displacement method with internal reference to the displacement field of the element. Since the generalized coordination method is used to determine the additional displacement directly from the complete polynomial, the solution space of the unit displacement field is effectively expanded. The constructed unit has the excellent characteristics of high computational accuracy and insensitivity to the computational grid distortion. This article provides a simple and effective way to improve the state of dislocation.