Reissner Mindlin板的一种新的稳定有限元法
A New Stabilized Finite Element Method for the Reissner Mindlin Plate
作者:罗家福(四川大学 建筑与环境学院,四川 成都 610064);谢春梅(四川大学 数学学院,四川 成都 610064);冯民富(四川大学 数学学院,四川 成都 610064)
Author:(Dept. of Architecture and Environment, Sichuan Univ., Chengdu 610064,China);(Dept. of Mathematics, Sichuan Univ., Chengdu 610064, China);(Dept. of Mathematics, Sichuan Univ., Chengdu 610064, China)
收稿日期:2006-10-24 年卷(期)页码:2007,39(5):38-43
期刊名称:工程科学与技术
Journal Name:Advanced Engineering Sciences
关键字:Reissner Mindlin板;locking 现象;稳定化方法
Key words:the Reissner Mindlin plate; locking phenomenon; stabilized finite element method
Reissner Minkdlin
基金项目:四川省科技攻关课题资助项目(05GG006-006-2)
中文摘要
对于Reissner Mindlin板,提出了一个绝对稳定的有限方法,此算法可以看作是MLyly稳定化方法的改进。改进后算法放松了对稳定化参数α的限制对任意的稳定化参数α>0都无条件稳定。数值实验表明,对于相同的α,本算法比Lyly中算法的收敛速度快,对稍大的α,优势更为明显。
英文摘要
As a altered form of the stabilized method of MLyly, a new absolute stabilized finite element method is presented for the Reissner Mindlin plate model. It is robust for all positive stabilized parameter α, while α has to satisfy some conditions for the method of Lyly to ensure the method’s validity. Furthermore, numerical experiments verify that, for the same α the altered form performs better than it does in Lyly’s method, and for the larger α the advantage is more obvious.
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