| 舰船艉轴架模态分析 |
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| 引用本文： | 祁玉荣,金咸定,吴荣宝,梅永娟,曹琳.舰船艉轴架模态分析[J].船舶工程,2004,26(3):33-36. |
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| 作者姓名： | 祁玉荣 金咸定 吴荣宝 梅永娟 曹琳 |
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| 作者单位： | 上海交通大学船舶与海洋工程学院,200030;中船重工七○一研究所上海分部,200233 |
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| 摘 要： | 采用有限元数值计算方法，以某舰为代表，建立舰船艉轴架模态分析的数学模型，计算并分析军规中所要求的艉轴架的一阶频率。在此过程中，利用模态质量对艉轴系统的频率进行筛选，从而得到P字架的横向和A字架的横、纵、垂向的一阶频率，并与军规中的要求相比较，校核艉轴架的模态特性。
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| 关 键 词： | 船舶 艉轴架 模态 有限元 |
Modal Analysis of Ship Shaft Bracket |
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| Qi Yurong,Jin Xianding,Wu Rongbao and others.Modal Analysis of Ship Shaft Bracket[J].Ship Engineering,2004,26(3):33-36. |
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| Authors: | Qi Yurong Jin Xianding Wu Rongbao and others |
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| Abstract: | The finite element method is used and a certain naval ship is taken as an example,a mathematical model of the ship's shaft bracket for its modal analysis is established.The first-order natural frequency of the bracket,which is required to be calculated by a Chinese military specification concerned,is calculated and analyzed.In this course,by use of modal effective mass,the transverse first-order natural frequency of P-bracket and the transverse,longitudinal and vertical first-order natural frequency of A-bracket are chosen from the whole natural frequencies,and the modal characteristics of the brackets are checked by comparing with the requirements in the military specification. |
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| Keywords: | Ship Shaft bracket Modal analysis FEM |
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