| 桁架式天线结构动态性能的有限元分析 |
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| 引用本文： | 朱惠华,刘文秀.桁架式天线结构动态性能的有限元分析[J].中国水运,2007,7(7):63-64. |
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| 作者姓名： | 朱惠华 刘文秀 |
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| 作者单位： | 青岛科技大学机电工程学院，青岛科技大学机电工程学院 |
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| 摘 要： | 以有限元理论为基础,运用有限元分析软件对车载桁架式天线系统进行结构动态分析及稳定性分析。模态分析的结果表明天线系统的低阶固有频率较低,不当的使用会导致结构的共振。稳定性分析表明天线结构的失稳属于局部屈曲行为,进一步的非线性屈曲分析表明,屈曲的临界载荷在正常工作载荷外,不影响系统工作。
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| 关 键 词： | 天线结构 有限元 稳定陆 辐射方向图 天线增益 |
| 文章编号： | 1006-7973(2007)07-0063-02 |
| 修稿时间： | 2007年4月8日 |
Truss Antenna Structure Finite Element Dynamic Analysis |
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| Zhu Huihua,Liu Wenxiu.Truss Antenna Structure Finite Element Dynamic Analysis[J].China Water Transport,2007,7(7):63-64. |
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| Authors: | Zhu Huihua Liu Wenxiu |
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| Institution: | Zhu Huihua Liu Wenxiu |
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| Abstract: | The paper analyzed truck-mounted radar system in structure field based on FEA theory. Result of mode analysis indicated that the natural frequency was low in low order, which would lead to sympathetic vibration in condition of improper use.The buckling was first taken place in an area of reflection plane, it was local buckling, the limit load was out of normal working load, and it would not affect the system working. |
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| Keywords: | antenna structure Finite Element stability antenna radiation pattern antenna gain |
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