大连海事大学学报 >
2018 , Vol. 44 >Issue 1: 1 - 8
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2018.01.001
时域格林函数的新实用数值计算方法
收稿日期: 2017-05-04
修回日期: 2017-06-07
网络出版日期: 2017-05-27
基金资助
国家高技术研究发展计划（863计划）资助项目（2015AA016404）；国家自然科学基金资助项目（51109020;51779029）；交通部应用基础研究项目（2014329225370）；海洋公益性行业科研专项经费项目（201505017-4）.
A new and practical numerical calculation method for time-domain Green function
Received date: 2017-05-04
Revised date: 2017-06-07
Online published: 2017-05-27
张腾 , 任俊生 , 李志富 , 白伟伟 . 时域格林函数的新实用数值计算方法[J]. 大连海事大学学报, 2018 , 44(1) : 1 -8 . DOI: 10.16411/j.cnki.issn1006-7736.2018.01.001
Aiming at the problems of unclear dividing line between short time interval region and long time interval region and the numerical accuracy, the precise time integration method was used to solve the fourthorder ordinary differential equations of timedomain Green function in the junction between long time interval region and short time interval region. Once the node tabulation for the timedomain Green function was obtained, a new method for computing the time domain Green’s function based on the precise integration method was proposed to solve the interpolation between nodes in ordinary differential equations. Numerical calculation results show that the proposed method can effectively improve the numerical accuracy of timedomain Green function which lays a reliable foundation for calculating ship’s hydrodynamics.
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