| 基于声辐射模态的粘弹性阻尼板声功率最小化研究* |
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| 引用本文： | 邱亮,姜哲.基于声辐射模态的粘弹性阻尼板声功率最小化研究*[J].振动与冲击,2011,30(1):40-43. |
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| 作者姓名： | 邱亮 姜哲 |
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| 作者单位： | 江苏大学振动噪声研究所 镇江 212013 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了减小薄板结构振动辐射的噪声，在重量约束下进行了声功率最小化研究。利用有限元振动模型来处理结构振动环节，利用声辐射模态模型来处理声辐射环节，用可行方向法进行了优化设计研究。以一矩形粘弹性阻尼板为例，得到了阻尼重量约束下板的声功率最小化模型，结果表明在满足重量约束条件下能够达到明显的降噪效果。
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| 关 键 词： | 有限元法 声辐射模态 声功率 优化设计 |
| 收稿时间： | 2009-7-17 |
| 修稿时间： | 2010-8-25 |
Sound power minimization for a plate with visco-elastic damping based on theory of acoustic radiation modes |
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| QIU Liang,JIANG Zhe.Sound power minimization for a plate with visco-elastic damping based on theory of acoustic radiation modes[J].Journal of Vibration and Shock,2011,30(1):40-43. |
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| Authors: | QIU Liang JIANG Zhe |
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| Affiliation: | Institute of the Vibration and Noise, Jiangsu University Zhenjiang 212013 |
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| Abstract: | The sound power minimization design with weight restriction of a thin plate was studied to reduce noise radiation due to its vibration.Using a finite element vibration model to deal with structural vibration and an acoustic radiation modal model to deal with noise radiation,the optimization design was investigated with the feasible direction method.The sound power minimization model of a plate with damping and weight restriction was established for a rectangular plate with visco-elastic damping.Results show... |
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| Keywords: | finite element method acoustic radiation mode sound power optimization design |
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