| 舰艇振动声学特性数值分析 |
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| 引用本文： | 杨德庆,王德禹,刘洪林.舰艇振动声学特性数值分析[J].上海交通大学学报,2002,36(11):1537-1539,1543. |
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| 作者姓名： | 杨德庆 王德禹 刘洪林 |
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| 作者单位： | 上海交通大学,船舶与海洋工程学院,上海,200030 |
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| 摘 要： | 交替运用结构有限元法与声学边界元法，对某型艇振动声学特性数值问题进行了研究，建立了全船三维有限元分析模型，通过频响分析计算，获得结构振动响应特性参数，以船体结构频响分析计算结果为声学边界条件，建立了全船三维边界无声学分析模型，并采用直接边界元法，对全船近场声学特性进行了计算，对比计算结果与实例数据表明，该计算方法是可行的，计算精度满足工程需要。
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| 关 键 词： | 船舶 振动 声学 数值分析 |
| 文章编号： | 1006-2467(2002)11-1537-03 |
Numerical Analysis of Vibro-Acoustic Characters of Ship |
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| YANG De qing,WANG De yu,LIU Hong lin.Numerical Analysis of Vibro-Acoustic Characters of Ship[J].Journal of Shanghai Jiaotong University,2002,36(11):1537-1539,1543. |
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| Authors: | YANG De qing WANG De yu LIU Hong lin |
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| Abstract: | The numerical analysis of vibro acoustic characters of a ship was carried out by use of structural FEM and acoustic BEM. The vibration response characters were computed based on the 3 D FE model of a ship with software NASTRAN. Taking the vibration characters from FEA as boundary conditions, a 3 D acoustic BE model was constructed. At last, the acoustic characters of the ship in near field were calculated by using the direct BEM with software SYSNOISE. The computational results were compared with the experiments, and it shows the effectiveness and validity of the proposed method. |
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| Keywords: | ships vibration acoustics numerical analysis |
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