摘要
本文应用拟协调元法构造了新的4节点8参数环形单元—QPL,QPDL和QP-R。与已有的PSL和PSN等环形单元比较,这些单元具有充分保证单元刚体位移模式、满足单元间的协调性及精度高等优点,为具有圆形边界的结构有限元分析提供了一个有效实用的单元。
New Quasi-conforming ring elements with four nodes and eightparameters QPL, QPDL and QP-R, are formulated in this paper. These elements, compared with formulated PSL, PSN ring element, have obvious advantages that the elements satisfy rigid motion condition, continuity between elements and have high precision. These elements are effective for analysing structures whose boundary is round.
