| 磁场天线的扭转振动及运动感应噪声研究 |
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| 引用本文： | 朱四华,王德石. 磁场天线的扭转振动及运动感应噪声研究[J]. 电波科学学报, 2006, 21(6): 830-833 |
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| 作者姓名： | 朱四华 王德石 |
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| 作者单位： | 1. 海军工程大学,湖北,武汉,430033;海军航空工程学院,山东,烟台,264000
2. 海军工程大学,湖北,武汉,430033 |
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| 摘 要： | 拖曳天线的运动感应电磁噪声对其收信深度及接收性能占据主导作用,其中横向振动与纵向振动是主要的,同时扭转振动也不可忽略.建立了磁场天线的扭转振动模型,得到了流体圆周切变力作用下磁场天线的扭转振动响应,分析了扭转振动感应电磁噪声的产生机理,给出了计算公式及仿真结果.研究结果为水下电磁噪声的深入研究提供了理论基础.
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| 关 键 词： | 磁场天线 电磁噪声 扭转振动 |
| 文章编号： | 1005-0388（2006）06-0830-04 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-24 |
Torsion vibration and motion-induced noise of H-field antenna |
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| ZHU Si-hua,WANG De-shi. Torsion vibration and motion-induced noise of H-field antenna[J]. Chinese Journal of Radio Science, 2006, 21(6): 830-833 |
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| Authors: | ZHU Si-hua WANG De-shi |
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| Affiliation: | 1. Naval University of Engineering , , Wuhan Hubei 430033, China 2. Naval Institute of Aeronautical Engineering, Yantai Shandong 264000, China |
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| Abstract: | Motion-induced noises of towed antenna dominate the receiving depth and receiving quality, in which transverse and longitudinal vibrations are crucial and torsion vibration is also significant. The torsion vibration model of H-field antenna is established and the response of torsion vibration under circumferential shearing force of sea water is obtained. Furthermore, causation of electromagnetic noise induced by torsion vibration is analyzed, and the estimation formulas and simulation results are given. All results will provide a powerful theoretical groundwork for further researches of underwater electromagnetic noises. |
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| Keywords: | H-field antenna electromagnetic noise torsion vibration |
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