摘要
提出了一种研究高阶Runge-Kutta法及其嵌套方法(以Runge-Kutta-Merson法为例)的稳定域。该方法简便、直观,并可方便地应用于其它数值积分法。利用计算机代数系统 Mathematica,给出了一些常用高阶RK法、嵌套RK法的稳定域及其在复平面的图形表示,所得结果为月球探测器轨道设计等实际工程计算中自适应积分器的选择提供了重要的依据。
This paper gives a way to work out the domain of convergence(DOC) of high-order Runge-Kutta and its nested methods. The way is simple, tangent, and can be easily applied to other integration methods. The DOCs of some typical nested methods are also presented and plotted out in the complex plane. The results are helpful to the selection of the adaptable integrator in the design of moon-explorer orbit and other practical engineering computations.
出处
《计算机工程与应用》
CSCD
北大核心
2000年第2期69-70,109,共3页
Computer Engineering and Applications
基金
国家863计划资助!项目协议号:863-2-5-3-11a
关键词
RK法
月球探测器
轨道设计
数值积分法
稳定域
Computational Algebra, DOC of Integration Method, Runge-Kutta method,Design of Moon-Explorer Orbit