| 基于动态特性的印制板结构改进 |
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| 引用本文： | 王红芳,赵玫,徐晓,施兆昌. 基于动态特性的印制板结构改进[J]. 振动与冲击, 2000, 19(1): 49-51 |
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| 作者姓名： | 王红芳 赵玫 徐晓 施兆昌 |
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| 作者单位： | 1. 上海交通大学振动、冲击、噪声国家重点实验室,上海,200030
2. 南京724所,南京,210003 |
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| 摘 要： | 印制板的动态特性对电子设备的可靠性有较大的影响。本文结合计算方法和实验方法对印制板的动态特性进行研究 ,对二种方法所得结果进行比较 ,证实了本文所采用的印制板有限元模型成型技术的有效性。一般地 ,船舶运行时外界环境所引起的激励频率范围为几Hz至几百Hz ,为了避免印制板共振引起的产品失效 ,希望印刷板的基频越高越好。通过计算 ,证明了本文提出的二种结构改进设计方法不同程度地提高了印制板基频
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| 关 键 词： | 印制板动态特性 有限元成型规则 计算模态分析 实验模态分析 结构改进设计 |
A STUDY ON THE DYNAMIC BEHAVIOR OF A PRINTED CIRCUIT BOARD IN ELECTRONIC BOX FOR SHIP APPLICATION |
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| Wang Hongfang,Zhao Mei,Xu Xiao,Shi Zhaochang. A STUDY ON THE DYNAMIC BEHAVIOR OF A PRINTED CIRCUIT BOARD IN ELECTRONIC BOX FOR SHIP APPLICATION[J]. Journal of Vibration and Shock, 2000, 19(1): 49-51 |
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| Authors: | Wang Hongfang Zhao Mei Xu Xiao Shi Zhaochang |
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| Abstract: | The dynamic behavior of printed circuit (PC) boards exercises strong influence on the reliability of electronic equipment.In the paper,the dynamic behavior of a PC board is studied by means of computation and verified by experiment with favorably compared results.This shows that FE modeling strategy used is sound.In general,exciting frequencies induced by external environment are in the range from several Hz to several hundred Hz.In order to avoid product failures due to resonance,it is desirable to make the fundamental natural frequency of PC boards as high as possible.Two structural modified design methods to raise the fundamental frequency are given with a numerical example. |
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| Keywords: | dynamic behavior of PC boards FE modeling strategy computational modal analysis experimental modal analysis structural modified destgn |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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