一个高性能板元的设计和误差分析

The design and error analysis of a high performance plate element

以Hellinger-Reissner泛函作为变分基础,借助能量优化条件,作者构造了一个含有5参数弯矩模式的四节点高性能杂交板元.依照能量优化原理,作者在理论上解释了新板元产生高性能的原因,并得到最优能量误差估计.

Based on Hellinger-Reissner variational principle, according to the energy optimal condition as a criterion of selecting a optimal 5-parameter moment mode, a 4-node low-order plate element is obtained. Theoretically the authors interpret the cause of high performance which the presented element showed, according to the energy optimal.