地磁模拟法测量舰船感应磁场的数值模拟

doi:10.12382/bgxb.2021.0110

摘要/Abstract

摘要： 地磁模拟法测量舰船感应磁场具有测量速度快、实施方便等优点，但感应磁场测量精度受模拟地磁场均匀度所限制，研究其影响规律对推广应用地磁模拟法具有重要意义。从地磁模拟法原理出发，借助COMSOL多物理场有限元仿真平台，设计椭球壳解析算例来验证该仿真平台分析地磁模拟法测量感应磁场的有效性。设计某舰船算例进行数值模拟研究，定量分析了地磁模拟法测量舰船感应磁场的精度受模拟地磁场均匀度影响的变化规律，以及舰桥结构对感应磁场测量精度的影响程度。结果表明：当模拟地磁场均匀度达到91%时，感应磁场测量精度优于90%，若继续增加均匀度，则感应磁场测量精度提升效果变缓，工程效费比降低；舰桥结构对均匀度评估的影响程度为0.2%，对感应磁场测量精度的影响程度为2.7%，且当整体均匀度高于91%后，其影响程度降至2.5%，可忽略该结构对感应磁场测量的影响。研究结论为实际舰船消磁中进一步推广应用地磁模拟法提供了依据,也为地磁模拟线圈的优化设计提供了一定的参考。

关键词: 舰船感应磁场, 舰船消磁, 地磁模拟法, 磁场均匀度

Abstract: Geomagnetic field simulation method has the advantages of fast measurement speed and convenient implementation, but the measurement accuracy of induced magnetic field is restricted by the uniformity of simulated geomagnetic field, so it is of great significance to study its influence law for popularizing and applying geomagnetic field simulation method. Based on the principle of geomagnetic field simulation method, with the help of COMSOL Multiphysics, an analytical example of an ellipsoidal shell is designed to verify the effectiveness of the simulation platform in analyzing geomagnetic field simulation method to measure induced magnetic field, and then a ship-type example is designed for numerical simulation. The variation law of the accuracy of measuring ship's induced magnetic field by geomagnetic field simulation method affected by the uniformity of simulated geomagnetic field and the influence of bridge structure on the measurement accuracy of induced magnetic field are quantitatively analyzed. The results show that the measurement accuracy of induced magnetic field is better than 90% when the uniformity of simulated geomagnetic field reaches 91%. If the uniformity continues to increase, the improvement effect of induced magnetic field measurement accuracy will slow down and the cost-effectiveness ratio of engineering will decrease. The influence of bridge structure on uniformity evaluation is 0.2%, and the influence degree of induced magnetic field measurement accuracy is 2.7%. When the overall uniformity is higher than 91%, its influence degree drops to 2.5%, so the influence of this structure on measuring induced magnetic field can be ignored. The research conclusion provides a basis for the further popularization and application of geomagnetic field simulation method in practical ship degaussing, and also provides a certain reference for optimization design of geomagnetic field simulation coils.

Key words: ship'sinducedmagneticfield, shipdegaussing, geomagneticsimulationmethod, magneticfielduniformity

中图分类号:

TM153⁺.1

王锴松，周国华，刘月林，王玉芬，刘胜道. 地磁模拟法测量舰船感应磁场的数值模拟[J]. 兵工学报, 2022, 43(3): 617-625.

WANG Kaisong， ZHOU Guohua， LIU Yuelin， WANG Yufen， LIU Shengdao. Numerical Simulation of Measuring Ship's Induced Magnetic Field by Geomagnetic Field Simulation Method[J]. Acta Armamentarii, 2022, 43(3): 617-625.

参考文献

［1］ HOLMES J J. Exploitation of a ship's magnetic field signatures [M]. San Rafael, CA， US: Morgan & Claypool Publishers, 2006.
[2］刘大明. 舰船消磁理论与方法[M]. 北京: 国防工业出版社, 2011: 116-119.
LIU D M. Degaussing theory and method of ships [M]. Beijing: National Defense Industry Press, 2011: 116-119. (in Chinese)
[3］刘胜道, 曲毅, 周国华,等. 基于体单元与测点间磁场映射关系的舰艇感应磁场测量方法[J]. 海军工程大学学报, 2019, 31(6): 72-76.
LIU S D, QU Y, ZHOU G H, et al. An approach of ship induced magnetic field measurement based on magnetic mapping relation between body elements and measuring points [J]. Journal of Naval University of Engineering, 2019, 31(6): 72-76. (in Chinese)
[4］陈瀚斯, 赵文春, 刘胜道,等. 映射法测量横向感应磁场垂向分量的实验验证[J]. 哈尔滨工程大学学报, 2018, 39(12): 2064-2067.
CHEN H S, ZHAO W C, LIU S D, et al. Verifying the magnetic mapping method for measuring the vertical component of the athwartship-induced magnetic field with experiment [J]. Journal of Harbin Engineering University, 2018, 39(12): 2064-2067. (in Chinese)
[5］刘胜道, 肖昌汉, 周国华,等. 潜艇闭环消磁中外部空间的磁场推算[J]. 海军工程大学学报, 2012, 24(1): 31-34.
LIU S D, XIAO C H, ZHOU G H, et al. Extrapolation of magnetic field outside submarine in closed-loop degaussing system [J]. Journal of Naval University of Engineering, 2012, 24(1): 31-34. (in Chinese)
[6］唐申生, 周耀忠, 刘胜道,等. 测量船舶垂向感应磁场的新方法[J]. 武汉理工大学学报（交通科学与工程版）, 2005, 29(5): 659-662.
TANG S S, ZHOU Y Z, LIU S D, et al. A new method of measuring vertical induced component of vessel's magnetic field [J]. Journal of Wuhan University of Technology (Transportation Science & Engineering), 2005, 29(5): 659-662. (in Chinese)
[7］连丽婷, 刘胜道, 肖昌汉,等. 测量纵向航向差的新方法[J]. 船舶工程, 2008, 30(2): 76-78.
LIAN L T, LIU S D, XIAO C H, et al.New method of measuring the difference of longitudinal courses [J]. Ship Engineering, 2008, 30(2): 76-78. (in Chinese)
[8］衣军, 张朝阳, 虞伟乔. 基于地磁模拟的潜艇感应磁场测量[J]. 上海海事大学学报, 2015, 36(1): 61-64.
YI J, ZHANG Z Y, YU W Q. Measurement of submarines' induced magnetic field based on geomagnetic simulation [J]. Journal of Shanghai Maritime University, 2015, 36(1): 61-64. (in Chinese)
[9］郭成豹, 周炜昶. 舰船垂向感应磁场精确测量技术[J]. 中国舰船研究, 2018, 13(2): 135-139.
GUO C B, ZHOU W C. Precision measurement of ship's induced vertical magnetic signatures [J]. Chinese Journal of Ship Research, 2018, 13(2): 135-139. (in Chinese)
[10］王志飞. 舰船消磁系统综述[J]. 船电技术, 2020, 40(9): 4-7.
WANG Z F. Overview on the ship degaussing system [J]. Marine Electric & Electronic Engineering, 2020, 40(9): 4-7. (in Chinese)
[11］郭仁荃, 李豪杰, 杨宇鑫. 基于COMSOL的轨道炮弹引信部位磁场组合屏蔽仿真[J]. 探测与控制学报, 2020, 42(3): 8-13,19.
GUO R Q, LI H J, YANG Y X. COMSOL simulation of railgun projectile fuze combination magnetic shielding [J]. Journal of Detection & Control, 2020, 42(3): 8-13,19. (in Chinese)
[12］冯慈璋, 马西奎. 工程电磁场导论[M]. 北京: 高等教育出版社, 2000.
FENG C Z, MA X K. Introduction to engineering electromagnetic field [M]. Beijing: Higher Education Press, 2000. (in Chinese)
[13］吕志峰, 张金生, 王仕成,等. 基于智能优化算法和有限元法的多线圈均匀磁场优化设计[J]. 北京航空航天大学学报, 2019, 45(5): 980-988.
L Z F, ZHANG J S, WANG S C, et al. Optimal design of multi-coil system for generating uniform magnetic field based on intelligent optimization algorithm and finite element method [J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(5): 980-988. (in Chinese)
[14］李辉, 张永顺. 三轴正交亥姆霍兹线圈的磁场均匀性分析[J]. 现代机械, 2019(4): 1-5.
LI H, ZHANG Y S. Analysis of magnetic field uniformity of triaxial orthogonal Helmholtz coils [J]. Modern Machinery, 2019(4): 1-5. (in Chinese)
[15］周耀忠, 张国友. 舰船磁场分析计算[M]. 北京: 国防工业出版社, 2004: 89-92.
ZHOU Y Z, ZHANG G Y. Analysis and calculation of ship magnetic field [M]. Beijing: National Defense Industry Press, 2004: 89-92. (in Chinese)
［16］赵建华，应宇辰，郭成豹.柴油机磁场的计算、试验与消磁优化［J］.兵工学报，2020，41(2): 350-355.
ZHAO J H，YING Y C，GUO C B.Calculation， test and degaussing optimization of magnetic field in diesel engine［J］.Acta Armamentarii，2020，41(2):350-355.(in Chinese)

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