Variable-step-size second-order-derivative multistep method for solving first-order ordinary differential equations in system simulation

被引:1
|
作者
Zhang, Lei [1 ]
Zhang, Chaofeng [1 ]
Liu, Mengya [1 ]
机构
[1] Henan Univ, Sch Phys & Elect, Kaifeng 475004, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
Numerical method; variable step size; variable order; hermite interpolation; ordinary differential equations; IMPLEMENTATION;
D O I
10.1142/S1793962320500014
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
According to the relationship between truncation error and step size of two implicit second-order-derivative multistep formulas based on Hermite interpolation polynomial, a variable-order and variable-step-size numerical method for solving differential equations is designed. The stability properties of the formulas are discussed and the stability regions are analyzed. The deduced methods are applied to a simulation problem. The results show that the numerical method can satisfy calculation accuracy, reduce the number of calculation steps and accelerate calculation speed.
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页数:16
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