荷载属于H^(-1)情况下双参数板元的误差估计

ERROR ESTIMATES OF DOUBLE-SET-PARAMETER PLATE ELEMENT FOR LOAD BELONGING TO H -1

有限元求解板弯曲问题一般是在荷载ｆ∈Ｌ２条件下讨论的，但真解ｕ∈Ｈ３情况下的匹配情况是ｆ∈Ｈ－１，本文给出双参数板元求解此种问题的离散模式和误差估计式。

For the plate bending problem, suppose the solution u∈ H 3(Ω) and the load f∈ H -1 (Ω), we give the error estimates of double-set-parameter plate element to solve this problem with a modified discrete form.