摘要
本文通过引入非协调动态位移模式,从能量泛函出发,在文[5]的基础上进一步导出了平面高阶非协调动态有限元列式,建立了一个新的平面高阶8—节点非协调动态有限单元(NDF8)。进行了典型的数值算例验证,并与已有的结果比较,证明本文理论正确,计算精度高,方法简单、易行、有效。
Based on energy formulation and with the inclusion of high order incompatible dynamic displacement, an incompatible formulation of finite dynamic element for higher order plane element is developed, a new higher order plane 8 node element (NDF8) is derived and numerically tested. It exhibits markable characteristic behavior with enhanced computational accuracy and easy to implement in dynamic structural analysis.
出处
《工程力学》
EI
CSCD
北大核心
1998年第1期23-29,共7页
Engineering Mechanics
基金
国家自然科学基金