系统工程与电子技术 ›› 2025, Vol. 47 ›› Issue (4): 1319-1326.doi: 10.12305/j.issn.1001-506X.2025.04.28

• 制导、导航与控制 • 上一篇    下一篇

弹载磁导航中弹体磁化场建模研究

张平安, 高敏, 汪伟, 王毅, 李超旺   

  1. 陆军工程大学石家庄校区, 河北 石家庄 050003
  • 收稿日期:2024-03-18 出版日期:2025-04-25 发布日期:2025-05-28
  • 通讯作者: 高敏
  • 作者简介:张平安 (1997—), 男, 博士研究生, 主要研究方向为弹箭信息化技术及应用
    高敏 (1963—), 男, 教授, 博士, 主要研究方向为弹箭信息化技术及应用
    汪伟 (1963—), 男, 教授, 博士, 主要研究方向为弹箭信息化技术及应用
    王毅 (1986—), 男, 讲师, 博士, 主要研究方向为弹箭信息化技术及应用
    李超旺 (1984—), 男, 副教授, 博士, 主要研究方向为弹箭信息化技术及应用

Research on modeling of the magnetization field of projectile in magnetic navigation

Ping'an ZHANG, Min GAO, Wei WANG, Yi WANG, Chaowang LI   

  1. Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, China
  • Received:2024-03-18 Online:2025-04-25 Published:2025-05-28
  • Contact: Min GAO

摘要:

为实现地磁导航在弹体制导中的高精度应用, 提出一种弹体磁化场解算模型。采用四面体单元对弹体模型进行剖分离散, 通过求和每个离散单元对测量点的磁感应强度, 进而计算弹体周围任何位置的磁感应强度。球壳解析模型计算结果和弹体模型的ANSYS (analysis systems)仿真实验表明, 弹体磁化场解算模型相对误差分别为0.42%和0.55%。弹体缩比模型野外试验结果表明, 测量点的测量值和计算值变化趋势的相对误差为1.09%。通过3种方式验证了弹体磁化场解算模型能够高精度测量弹体周围任何位置的磁感应强度, 表明解算模型的有效性和可行性, 具有较高的工程实际价值。

关键词: 地磁导航, 磁化场模型, ANSYS仿真, 球壳数值解析, 弹体缩比模型实验

Abstract:

To achieve high-precision application of geomagnetic navigation in projectile guidance, a magnetic field calculation model for projectile is proposed. The tetrahedral element is used to discretize the projectile model, and the magnetic induction intensity of each discrete element at the measurement point is calculated by summing up the magnetic induction intensity around the projectile at any position. The calculation results of the spherical shell analytical model and the analysis systems (ANSYS) simulation experiments of the projectile model show that the relative errors of the magnetization field calculation model of the projectile are 0.42% and 0.55%, respectively. The field experiment results of the projectile scaling model show that the relative error between trends in the measured values and the calculated values of the measurement points is 1.09%. The magnetic field calculation model of the projectile is validated in three ways to accurately measure the magnetic induction intensity at any position around the projectile, indicating the effectiveness and feasibility of the calculation model, which has high engineering practical value.

Key words: geomagnetic navigation, magnetization field model, ANSYS simulation, numerical analysis of spherical shell, experiment on projectile scaling model

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