Variational integrators for forced Birkhoffian systems
Variational integrators for forced Birkhoffian systems
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强制伯克霍夫系统的变分积分器
DOI:
10.1016/j.amc.2013.09.045
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发表时间:
2013-12
影响因子:
4
通讯作者:
Mei Fengxiang
中科院分区:
文献类型:
--
作者:
Kong Xinlei;Wu Huibin;Mei Fengxiang
In this letter, we first extend the Pfaff–Birkhoff principle to include forces and obtain the Pfaff–Birkhoff–D’Alembert principle consequently. Well then motions of forced Birkhoffian systems coincide with extremals of the modified principle. Subsequently, compared with the continuous case, the discrete forced Birkhoffian equations are constructed by discretizing the Pfaff–Birkhoff–D’Alembert principle. Considered as algorithms, the discrete equations have good numerical behavior in terms of getting the correct amounts by which the energy changes over the integration process, demonstrated by the given example.
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影响因子:
2.6
作者:
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通讯作者:
Yajuan Sun;Zaijiu Shang
DOI:
10.1360/ya1993-36-12-1456
发表时间:
1993-12
期刊:
Science in China Series A-Mathematics, Physics, Astronomy & Technological Science
影响因子:
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作者:
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通讯作者:
Mei Feng-Xiangc
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作者:
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通讯作者:
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DOI:
10.1002/1097-0207(20001210)49:10
发表时间:
2000-12
影响因子:
2.9
作者:
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通讯作者:
J. Sarrate;A. Huerta