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基于模态分析的印制电路板抗振优化设计

更新时间:2020-08-04 04:40:48 大小:1M 上传用户:六3无线电查看TA发布的资源 标签:模态分析印制电路板 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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保证印制电路板足够高的固有频率可有效提高印制电路板的抗振能力。以3U和6U两种典型尺寸的印制电路板为例,分别建立有限元模型,通过模态分析得到其各阶固有频率。针对印制电路板固有频率偏低的问题,分别对3U和6U板卡设计优化安装方案。模态分析表明,这些优化安装方案易于实现,可显著提高这2种板卡的固有频率,增强抗振能力,提高可靠性,同时考虑了电路设计的需要。

To ensure a sufficiently high natural frequency of primed circuit board can effectively improve the anti-vibration capa- bility of the primed circuit board for. Two typical sizes of primed circuit board(PCB) which are 3U and 6U are taken for exam- ple, their finite element models are established, and their natural frequencies are obtained by modal analysis. Optimal installation solutions are designed for 3U and 6U boards to solve their problems of low natural frequencies. The results show that the optimal installation solutions are easy to implement, they can significantly increase the natural frequencies for 3U and 6U boards and en- hance the anti-vibration reliability, at the same time the installation solutions meet the needs of circuit design.

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基于模态分析的印制电路板抗振优化设计.pdf 1M

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