摘要
介绍了微分代数系统DAE的基本概念及仿真算法，特别指出了用BDF方法求解高指标常系数线性DAE系统时的数值稳定性缺陷。最后，针对飞行器轨道约束实时控制问题，给出了3阶收敛的代数约束算法。
In this paper, the basic concept of differential-algebraic eq uations is introduced and its numerical algorithm is discussed. The de fect for numerical stability of BDF method is shown when it is applied to linear constant coefficient DAE's with high index. Finally, a new algorithm with three orders for aerospace real-time control problem is given out.
出处
《计算机工程与设计》
CSCD
北大核心
2000年第5期58-60,57,共4页
Computer Engineering and Design
基金
国家自然科学基金!(批准号:19871080)
关键词
微分代数系统
线性常系数
数值仿真
算法
differential-algebraic equaions
simulation algorithm
numeric al analysis
