摘要
本文对有限元和直接积分法瞬态动力计算的时空离散协调问题进行了研究，本文分别分析了空间离散和时间离散所引起的数值误差，提出了均衡空间离散引起的能量误差和时间离散引起的能量误差的原则，并给出时空离散协调的前处理方案和自适应方案。
In this paper,the coordination of spatial temporal discrete of FEM and direct integral method is investigated.By analyzing the numerical error induced by spatial- temporal discrete,the principle of balancing the energy error induced by spatial discrete and the energy error induced by temporal discrete is presented,and the priori process and adaptive method for the coordination of spatial disc-rete and temporal discrete is obtained.
出处
《应用数学和力学》
CSCD
北大核心
1994年第12期1111-1117,共7页
Applied Mathematics and Mechanics
