甚低频十三塔天线机电耦合协同建模与分析

doi:10.12305/j.issn.1001-506X.2026.04.05

Abstract

Abstract:

Aiming at the problem of time-consuming iterations between electrical and structural design in the very low frequency thirteen-tower antenna, a mathematical model of electromechanical coupling collaborative analysis of very low frequency thirteen-tower antenna is established. The antenna structure information is discretized and embedded into the electromagnetic grid by the method of moment. The calculation grid between the structural model and the electrical model and the transmission and conversion of information are completed, and the collaborative analysis of antenna structure and electrical performance is realized. The proposed method overcomes the problem of unit shape mismatch of grid models between heterogeneous systems. After the structural parameters are modified, the mathematical structure model is generated immediately, which is converted into the electrical model of the moment method and the electrical performance is calculated. The electromechanical coupling collaborative modeling analysis method is used to calculate the antenna structure deformation and antenna electrical performance under different harsh conditions, and compared with the traditional modeling and simulation calculation results under the same working conditions. The calculation efficiency is improved by 35 % when the calculation error is less than 1 %, which can provide a calculation tool for the balance control of the very low frequency thirteen-tower antenna under harsh conditions.

Key words: very low frequency thirteen-tower antenna, mechanical-electric coupling, collaborative modeling, radiation resistance, effective height

CLC Number:

TN 823+.12

Haitao CHEN, Wei LIU, Lei CHEN, Huizhe QIANG, Shuxin ZHANG. Co-modeling and analysis of mechanical-electric coupling of very low frequency thirteen-tower antenna[J]. Systems Engineering and Electronics, 2026, 48(4): 1145-1153.

Figures/Tables 16

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参数名称	数值
密度/（kg/m³）	8 960
弹性模量/GPa	117
泊松比	0.34
导线直径/m	0.0254
导线横截面积/ m²	0.00 050 671
重力加速度/（cm/s²）	980
垂度	0.047
频率范围/kHz	15~40

工况名称	风速/（m/s）	覆冰厚度/mm	温度/℃
工况1（自重）	0	0	20
工况2（八级大风）	18	0	10
工况3（覆冰+八级大风）	18	10	−5

工况名称	辐射电阻
工况1（自重）	0.4991
工况2（八级大风）	0.6501
工况3（覆冰+八级大风）	0.5409

方法	辐射电阻/Ω	有效高度h_e/m	所用时间/h
传统建模	0.2534	190.0211	7
协同建模	0.2511	189.1455	4.5
效率对比/%	0.91	0.46	35.7

Co-modeling and analysis of mechanical-electric coupling of very low frequency thirteen-tower antenna

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