哈尔滨工程大学学报2015，Vol.36Issue(10)：1380-1385,6.DOI:10.11990/jheu.201405070
基于快速多极子的舰船感应磁场快速预报方法
Method for induced magnetic field modeling of ships based on fast multipole method
摘要
Abstract
The nonsymmetric and dense coefficient matrix of integral equation method results in low computation ef-ficiency and large memory in induced magnetic field computation of large scale ships. In order to improve computa-tion efficiency, a new method was developed based on the fast multipole and the integral equation methods. The proposed method were deduced. The numerical implementations of the multipole expansion, multipole to local trans-lation and local expansion were described in detail. The proposed method not only has the virtue of the vector inte-gral equation method, which needs only meshed source area and easily handles infinite domain problems, such as induced magnetic field modeling of ships, but also has the excellent performance of the fast multipole method in conjunction with an iterative solver, which can accelerate the matrix-vector product. The analytical numerical exper-iment of a sphere magnetized in an uniform applied magnetic field and the magnetostatic field modeling of the main cabin of a simple submarine mockup was designed. The results show that the proposed method has high calculation accuracy with noticeably less time. The proposed method is very helpful in engineering application.关键词
磁场积分法/快速多极子/感应磁场计算/舰船消磁Key words
Integral equation method/fast multipole method/induced magnetic field computation/ship degaussing分类
信息技术与安全科学引用本文复制引用
周国华,刘胜道,肖昌汉,刘大明..基于快速多极子的舰船感应磁场快速预报方法[J].哈尔滨工程大学学报,2015,36(10):1380-1385,6.基金项目
国家自然科学基金资助项目(51107145,51377165). （51107145,51377165）
